Kamishima Tamotsu

Faculty of Health Sciences Health Sciences Biomedical Science and EngineeringProfessor
Last Updated :2025/11/11

■Researcher basic information

Researchmap personal page

Research Keyword

  • 校正
  • 超音波
  • 関節リウマチ
  • 放射線治療
  • 動体追跡放射線治療
  • 画像誘導放射線治療
  • 電子線トラック解析
  • 核医学診断技術
  • 非線形最適化
  • モンテカルロ法
  • 体幹部定位放射線照射
  • プラスチック検出器
  • 炎症性発癌
  • スポットスキャン
  • 低酸素細胞
  • 量子線シミュレーション

Research Field

  • Life sciences, Allergies and connective tissue disease
  • Life sciences, Radiology

Educational Organization

■Career

Career

  • 2012 - 2013
    Hokkaido University, 大学院・保健科学研究院, 教授

■Research activity information

Papers

  • BLS-GAN: A Deep Layer Separation Framework for Eliminating Bone Overlap in Conventional Radiographs.
    Haolin Wang, Yafei Ou, Prasoon Ambalathankandy, Gen Ota, Pengyu Dai, Masayuki Ikebe, Kenji Suzuki 0001, Tamotsu Kamishima
    AAAI, 7674, 7681, 2025
    International conference proceedings
  • Natural Recovery of Very Limited Elbow Flexion After Rare Lateral Humeral Condylar Fracture in a 4-Year-Old Boy: A Case Report.
    Koki Ohta, Yuichiro Matsui, Hiroyuki Kato, Daisuke Kawamura, Takeshi Endo, Daisuke Momma, Tamotsu Kamishima, Tatsunori Horie, Hirofumi Miyaji, Norimasa Iwasaki
    JBJS case connector, 14, 4, 01 Oct. 2024, [International Magazine]
    English, Scientific journal, CASE: A 4-year-old boy developed malunion after open reduction and internal fixation (ORIF) of a rare lateral condylar humeral fracture running from the lateral humerus, through the trochlear cartilage, to the medial trochlea. Five months after ORIF, the active elbow flexion was limited to 50°. Magnetic resonance imaging (MRI) showed a step-off of the anterior trochlear cartilage, causing the limited flexion. After conservative observation for 5 years, the flexion improved to 135° and MRI showed that the step-off had disappeared. CONCLUSION: This case indicates that it is possible for pediatric patients to recover their range of motion following malunion of an elbow fracture.
  • Artificial Intelligence Quantification of Enhanced Synovium Throughout the Entire Hand in Rheumatoid Arthritis on Dynamic Contrast-Enhanced MRI.
    Yijun Mao, Kiko Imahori, Wanxuan Fang, Hiroyuki Sugimori, Shinji Kiuch, Kenneth Sutherland, Tamotsu Kamishima
    Journal of magnetic resonance imaging : JMRI, 28 May 2024, [International Magazine]
    English, Scientific journal, BACKGROUND: Challenges persist in achieving automatic and efficient inflammation quantification using dynamic contrast-enhanced (DCE) MRI in rheumatoid arthritis (RA) patients. PURPOSE: To investigate an automatic artificial intelligence (AI) approach and an optimized dynamic MRI protocol for quantifying disease activity in RA in whole hands while excluding arterial pixels. STUDY TYPE: Retrospective. SUBJECTS: Twelve RA patients underwent DCE-MRI with 27 phases for creating the AI model and tested on images with a variable number of phases from 35 RA patients. FIELD STRENGTH/SEQUENCE: 3.0 T/DCE T1-weighted gradient echo sequence (mDixon, water image). ASSESSMENT: The model was trained with various DCE-MRI time-intensity number of phases. Evaluations were conducted for similarity between AI segmentation and manual outlining in 51 ROIs with synovitis. The relationship between synovial volume via AI segmentation with rheumatoid arthritis magnetic resonance imaging scoring (RAMRIS) across whole hands was then evaluated. The reference standard was determined by an experienced musculoskeletal radiologist. STATISTICAL TEST: Area under the curve (AUC) of receiver operating characteristic (ROC), Dice and Spearman's rank correlation coefficients, and interclass correlation coefficient (ICC). A P-value <0.05 was considered statistically significant. RESULTS: A minimum of 15 phases (acquisition time at least 2.5 minutes) was found to be necessary. AUC ranged from 0.941 ± 0.009 to 0.965 ± 0.009. The Dice score was 0.557-0.615. Spearman's correlation coefficients between the AI model and ground truth were 0.884-0.927 and 0.736-0.831, for joint ROIs and whole hands, respectively. The Spearman's correlation coefficient for the additional test set between the model trained with 15 phases and RAMRIS was 0.768. CONCLUSION: The AI-based classification model effectively identified synovitis pixels while excluding arteries. The optimal performance was achieved with at least 15 phases, providing a quantitative assessment of inflammatory activity in RA while minimizing acquisition time. EVIDENCE LEVEL: 3 TECHNICAL EFFICACY: Stage 2.
  • Fully automatic quantification for hand synovitis in rheumatoid arthritis using pixel-classification-based segmentation network in DCE-MRI.
    Wanxuan Fang, Yijun Mao, Haolin Wang, Hiroyuki Sugimori, Shinji Kiuch, Kenneth Sutherland, Tamotsu Kamishima
    Japanese journal of radiology, 24 May 2024, [Domestic magazines]
    English, Scientific journal, PURPOSE: A classification-based segmentation method is proposed to quantify synovium in rheumatoid arthritis (RA) patients using a deep learning (DL) method based on time-intensity curve (TIC) analysis in dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI). MATERIALS AND METHODS: This retrospective study analyzed a hand MR dataset of 28 RA patients (six males, mean age 53.7 years). A researcher, under expert guidance, used in-house software to delineate regions of interest (ROIs) for hand muscles, bones, and synovitis, generating a dataset with 27,255 pixels with corresponding TICs (muscle: 11,413, bone: 8502, synovitis: 7340). One experienced musculoskeletal radiologist performed ground truth segmentation of enhanced pannus in the joint bounding box on the 10th DCE phase, or around 5 min after contrast injection. Data preprocessing included median filtering for noise reduction, phase-only correlation algorithm for motion correction, and contrast-limited adaptive histogram equalization for improved image contrast and noise suppression. TIC intensity values were normalized using zero-mean normalization. A DL model with dilated causal convolution and SELU activation function was developed for enhanced pannus segmentation, tested using leave-one-out cross-validation. RESULTS: 407 joint bounding boxes were manually segmented, with 129 synovitis masks. On the pixel-based level, the DL model achieved sensitivity of 85%, specificity of 98%, accuracy of 99% and precision of 84% for enhanced pannus segmentation, with a mean Dice score of 0.73. The false-positive rate for predicting cases without synovitis was 0.8%. DL-measured enhanced pannus volume strongly correlated with ground truth at both pixel-based (r = 0.87, p < 0.001) and patient-based levels (r = 0.84, p < 0.001). Bland-Altman analysis showed the mean difference for hand joints at the pixel-based and patient-based levels were -9.46 mm3 and -50.87 mm3, respectively. CONCLUSION: Our DL-based DCE-MRI TIC shape analysis has the potential for automatic segmentation and quantification of enhanced synovium in the hands of RA patients.
  • A deep registration method for accurate quantification of joint space narrowing progression in rheumatoid arthritis.
    Haolin Wang, Yafei Ou, Wanxuan Fang, Prasoon Ambalathankandy, Naoto Goto, Gen Ota, Taichi Okino, Jun Fukae, Kenneth Sutherland, Masayuki Ikebe, Tamotsu Kamishima
    Computerized medical imaging and graphics : the official journal of the Computerized Medical Imaging Society, 108, 102273, 102273, Sep. 2023, [International Magazine]
    English, Scientific journal, Rheumatoid arthritis (RA) is a chronic autoimmune inflammatory disease that leads to progressive articular destruction and severe disability. Joint space narrowing (JSN) has been regarded as an important indicator for RA progression and has received significant attention. Radiology plays a crucial role in the diagnosis and monitoring of RA through the assessment of joint space. A new framework for monitoring joint space by quantifying joint space narrowing (JSN) progression through image registration in radiographic images has emerged as a promising research direction. This framework offers the advantage of high accuracy; however, challenges still exist in reducing mismatches and improving reliability. In this work, we utilize a deep intra-subject rigid registration network to automatically quantify JSN progression in the early stages of RA. In our experiments, the mean-square error of the Euclidean distance between the moving and fixed images was 0.0031, the standard deviation was 0.0661 mm and the mismatching rate was 0.48%. Our method achieves sub-pixel level accuracy, surpassing manual measurements significantly. The proposed method is robust to noise, rotation and scaling of joints. Moreover, it provides misalignment visualization, which can assist radiologists and rheumatologists in assessing the reliability of quantification, exhibiting potential for future clinical applications. As a result, we are optimistic that our proposed method will make a significant contribution to the automatic quantification of JSN progression in RA. Code is available at https://github.com/pokeblow/Deep-Registration-QJSN-Finger.git.
  • A deep registration method for accurate quantification of joint space narrowing progression in rheumatoid arthritis
    Haolin Wang, Yafei Ou, Wanxuan Fang, Prasoon Ambalathankandy, Naoto Goto, Gen Ota, Taichi Okino, Jun Fukae, Kenneth Sutherland, Masayuki Ikebe, Tamotsu Kamishima
    Computerized Medical Imaging and Graphics, 108, 102273, 102273, Elsevier BV, Sep. 2023
    Scientific journal
  • Fully automatic software for detecting radiographic joint space narrowing progression in rheumatoid arthritis: phantom study and comparison with visual assessment
    Taichi Okino, Yafei Ou, Masayuki Ikebe, Kenichi Tamura, Kenneth Sutherland, Jun Fukae, Kazuhide Tanimura, Tamotsu Kamishima
    JAPANESE JOURNAL OF RADIOLOGY, 41, 5, 510, 520, May 2023
    English, Scientific journal
  • Fully automatic software for detecting radiographic joint space narrowing progression in rheumatoid arthritis: phantom study and comparison with visual assessment.
    Taichi Okino, Yafei Ou, Masayuki Ikebe, Kenichi Tamura, Kenneth Sutherland, Jun Fukae, Kazuhide Tanimura, Tamotsu Kamishima
    Japanese journal of radiology, 41, 5, 510, 520, May 2023, [Domestic magazines]
    English, Scientific journal, PURPOSE: We have developed an in-house software equipped with partial image phase-only correlation (PIPOC) which can automatically quantify radiographic joint space narrowing (JSN) progression. The purpose of this study was to evaluate the software in phantom and clinical assessments. MATERIALS AND METHODS: In the phantom assessment, the software's performance on radiographic images was compared to the joint space width (JSW) difference using a micrometer as ground truth. A phantom simulating a finger joint was scanned underwater. In the clinical assessment, 15 RA patients were included. The software measured the radiological progression of the finger joints between baseline and the 52nd week. The cases were also evaluated with the Genant-modified Sharp score (GSS), a conventional visual scoring method. We also quantitatively assessed these joints' synovial vascularity (SV) on power Doppler ultrasonography (0, 8, 20 and 52 weeks). RESULTS: In the phantom assessment, the PIPOC software could detect changes in JSN with a smallest detectable difference of 0.044 mm at 0.1 mm intervals. In the clinical assessment, the JSW change of the joints with GSS progression detected by the software was significantly greater than those without GSS progression (p = 0.004). The JSW change of joints with positive SV at baseline was significantly higher than those with negative SV (p = 0.024). CONCLUSION: Our in-house software equipped with PIPOC can automatically and quantitatively detect slight radiographic changes of JSW in clinically inactive RA patients.
  • 高齢者に対する生物学的製剤 csDMARDs効果不十分な高齢と若年の関節リウマチ患者におけるアバタセプト一年間投与の有効性と安全性の比較検討               
    山田 善登, 村岡 成, 川添 麻衣, 廣瀬 恒, 河野 肇, 保田 晋助, 神島 保, 南木 敏宏
    日本リウマチ学会総会・学術集会プログラム・抄録集, 67回, 688, 688, (一社)日本リウマチ学会, Mar. 2023
    Japanese
  • Automatic Quantification of Enhancing Pannus of the Rheumatoid Hand using Machine Learning in DCE-MRI(タイトル和訳中)               
    Fang Wanxuan, Mao Yijun, An Yujie, Sugimori Hiroyuki, Kiuch Shinji, Kamishima Tamotsu
    日本医学放射線学会学術集会抄録集, 82回, S194, S194, (公社)日本医学放射線学会, Mar. 2023
    English
  • Rheumatoid Arthritis Synovitis Segmentation Based on Unsupervised Learning and Time-intensity Curve Signal Data on Dynamic Contrast Enhaced MRI(タイトル和訳中)               
    Mao Yijun, Fang Wanxuan, An Yujie, Sugimori Hiroyuki, Kiuch Shinji, Kamishima Tamotsu
    日本放射線技術学会総会学術大会予稿集, 79回, 322, 322, (公社)日本放射線技術学会, Mar. 2023
    English
  • A Sub-Pixel Accurate Quantification of Joint Space Narrowing Progression in Rheumatoid Arthritis
    Yafei Ou, Prasoon Ambalathankandy, Ryunosuke Furuya, Seiya Kawada, Tianyu Zeng, Yujie An, Tamotsu Kamishima, Kenichi Tamura, Masayuki Ikebe
    IEEE JOURNAL OF BIOMEDICAL AND HEALTH INFORMATICS, 27, 1, 53, 64, Jan. 2023
    English, Scientific journal
  • A Sub-Pixel Accurate Quantification of Joint Space Narrowing Progression in Rheumatoid Arthritis
    Ou, Yafei, Ambalathankandy, Prasoon, Furuya, Ryunosuke, Kawada, Seiya, Zeng, Tianyu, An, Yujie, Kamishima, Tamotsu, Tamura, Kenichi, Ikebe, Masayuki
    IEEE Journal of Biomedical and Health Informatics, 27, 1, 53, 64, Jan. 2023
    English, Scientific journal, Rheumatoid arthritis (RA) is a chronic autoimmune disease that primarily affects peripheral synovial joints, like fingers, wrists and feet. Radiology plays a critical role in the diagnosis and monitoring of RA. Limited by the current spatial resolution of radiographic imaging, joint space narrowing (JSN) progression of RA for the same reason above can be less than one pixel per year with universal spatial resolution. Insensitive monitoring of JSN can hinder the radiologist/rheumatologist from making a proper and timely clinical judgment. In this paper, we propose a novel and sensitive method that we call partial image phase-only correlation which aims to automatically quantify JSN progression in the early RA. The majority of the current literature utilizes the mean error, root-mean-square deviation and standard deviation to report the accuracy at pixel level. Our work measures JSN progression between a baseline and its follow-up finger joint images by using the phase spectrum in the frequency domain. Using this study, the mean error can be reduced to 0.0130 mm when applied to phantom radiographs with ground truth, and 0.0519 mm standard deviation for clinical radiography. With the sub-pixel accuracy far beyond usual manual measurements, we are optimistic that the proposed work is a promising scheme for automatically quantifying JSN progression.
  • A Sub-Pixel Accurate Quantification of Joint Space Narrowing Progression in Rheumatoid Arthritis.
    Yafei Ou, Prasoon Ambalathankandy, Ryunosuke Furuya, Seiya Kawada, Tianyu Zeng, Yujie An, Tamotsu Kamishima, Kenichi Tamura, Masayuki Ikebe
    IEEE journal of biomedical and health informatics, 27, 1, 53, 64, Jan. 2023, [International Magazine]
    English, Scientific journal, Rheumatoid arthritis (RA) is a chronic autoimmune disease that primarily affects peripheral synovial joints, like fingers, wrists and feet. Radiology plays a critical role in the diagnosis and monitoring of RA. Limited by the current spatial resolution of radiographic imaging, joint space narrowing (JSN) progression of RA for the same reason above can be less than one pixel per year with universal spatial resolution. Insensitive monitoring of JSN can hinder the radiologist/rheumatologist from making a proper and timely clinical judgment. In this paper, we propose a novel and sensitive method that we call partial image phase-only correlation which aims to automatically quantify JSN progression in the early RA. The majority of the current literature utilizes the mean error, root-mean-square deviation and standard deviation to report the accuracy at pixel level. Our work measures JSN progression between a baseline and its follow-up finger joint images by using the phase spectrum in the frequency domain. Using this study, the mean error can be reduced to 0.0130 mm when applied to phantom radiographs with ground truth, and 0.0519 mm standard deviation for clinical radiography. With the sub-pixel accuracy far beyond usual manual measurements, we are optimistic that the proposed work is a promising scheme for automatically quantifying JSN progression.
  • 関節リウマチ患者の滑膜炎を自動で抽出するソフトウエアの開発 手のダイナミックMRIを用いた検討(Toward Development of Software Application that can Automatically Demonstrate the Distribution of Pannus in Rheumatoid Hand using Dynamic MRI Dataset)               
    Fang Wanxuan, An Yujie, Sugimori Hiroyuki, Kiuchi Shinji, Kamishima Tamotsu
    日本医学放射線学会学術集会抄録集, 81回, S210, S210, (公社)日本医学放射線学会, Mar. 2022
    English
  • Feasibility of an Ultrasound-Based Method for Measuring Talar Displacement during the Anterior Drawer Stress Test Using a Telos Device: A Preliminary Study.
    Kaori Tsutsumi, Utayo Nakaya, Yuta Koshino, Mari Tateno, Kazuhisa Matsumoto, Mai Tanaka, Mika Yokoyama, Tatsunori Horie, Mina Samukawa, Tamotsu Kamishima, Harukazu Tohyama
    International journal of environmental research and public health, 19, 4, 18 Feb. 2022, [Peer-reviewed], [International Magazine]
    English, Scientific journal, This study was conducted to measured talar displacement using ultrasound during an anterior drawer test (ADT) with a Telos device. Five adults (3 men and 2 women; 8 ankles; mean age: 23.2 y) with a history of ankle sprain and eight adults (5 men and 3 women; 16 ankles; mean age: 22.1 y) without a history of ankle sprain were recruited into a history of ankle sprain (HAS) and a control group, respectively. Talar displacement was observed in response to load forces applied by a Telos device during the ultrasound stress imaging test. The ultrasound probe was placed 5 mm inside from the center of the Achilles tendon on the posterior ankle along the direction of the major axis. The inter-rater reliability for the present method was classified as good and excellent (ICC(2,2) = 0.858 and 0.957 at 120 N and 150 N, respectively) in the control group and excellent (ICC(2,2) = 0.940 and 0.905 at 120 N and 150 N, respectively) in the HAS group, according to specific intraclass correlation coefficient values. We found that talar displacement during the ADT was lower in the HAS group than in the control group. Analysis of the receiver operating characteristic curve revealed that the quantitative ultrasound-based ADT using a Telos device was superior to the X-ray-based test in detecting reduced ankle joint mobility during the ADT (area under the curve of 0.905 and 0.726 at a force of 150 N using ultrasound-based and X-ray-based tests, respectively). Further investigation is needed; nevertheless, this preliminary study suggests that the ultrasound-based quantitative ADT using a Telos device might detect talar displacement more sensitively than the conventional stress X-ray.
  • Joint space narrowing progression quantification with joint angle correction in rheumatoid arthritis
    Yafei Ou, Prasoon Ambalathankandy, Ryunosuke Furuya, Seiya Kawada, Tamotsu Kamishima, Masayuki Ikebe
    2022 14TH BIOMEDICAL ENGINEERING INTERNATIONAL CONFERENCE (BMEICON 2022), 2022
    English, International conference proceedings
  • Social and physical effects of a pedometer and communication application among older men: a mixed-methods, pre/post pilot study
    Hiroki Abe, Tamotsu Kamishima, Ryoji Ojima, Ryuta Onishi, Michiyo Hirano
    Information, Communication & Society, 1, 20, Informa UK Limited, 14 Jul. 2021
    Scientific journal
  • Giant intraosseous cyst-like lesions of the metacarpal bones in rheumatoid arthritis
    Wanxuan Fang, Ikuma Nakagawa, Kenneth Sutherland, Kazuhide Tanimura, Tamotsu Kamishima
    Journal of Imaging, 7, 7, MDPI AG, 01 Jul. 2021
    English, Scientific journal
  • 肝臓のMR弾性造影に関する半自動化定量ソフトウエアの結果の妥当性と再現性に関する研究(Validation and Reproducibility Study on Semi-automatic Quantification Software for MR Elastography of the Liver)               
    Katsuumi Yuri, Kamishima Tamotsu, Sugimori Hiroyuki, Shimamura Tsuyoshi, Kawamura Norio, Takeda Hiroshi
    日本放射線技術学会総会学術大会予稿集, 77回, 248, 249, (公社)日本放射線技術学会, Mar. 2021
    English
  • Quantification of Joint Space Width Difference on Radiography Via Phase-Only Correlation (POC) Analysis: a Phantom Study Comparing with Various Tomographical Modalities Using Conventional Margin-Contouring.
    Aimi Taguchi, Shun Shishido, Yafei Ou, Masayuki Ikebe, Tianyu Zeng, Wanxuan Fang, Koichi Murakami, Toshikazu Ueda, Nobutoshi Yasojima, Keitaro Sato, Kenichi Tamura, Kenneth Sutherland, Nozomi Oki, Ko Chiba, Kazuyuki Minowa, Masataka Uetani, Tamotsu Kamishima
    Journal of digital imaging, 34, 1, 96, 104, 02 Dec. 2020, [International Magazine]
    English, Scientific journal, Several visual scoring methods are currently used to assess progression of rheumatoid arthritis (RA) on radiography. However, they are limited by its subjectivity and insufficient sensitivity. We have developed an original measurement system which uses a technique called phase-only correlation (POC). The purpose of this study is to validate the system by using a phantom simulating the joint of RA patients.A micrometer measurement apparatus that can adjust arbitrary joint space width (JSW) in a phantom joint was developed to define true JSW. The phantom was scanned with radiography, 320 multi detector CT (MDCT), high-resolution peripheral quantitative CT (HR-pQCT), cone beam CT (CBCT), and tomosynthesis. The width was adjusted to the average size of a women's metacarpophalangeal joint, from 1.2 to 2.2 mm with increments of 0.1 mm and 0.01 mm. Radiographical images were analyzed by the POC-based system and manual method, and images from various tomographical modalities were measured via the automatic margin detection method. Correlation coefficients between true JSW difference and measured JSW difference were all strong at 0.1 mm intervals with radiography (POC-based system and manual method), CBCT, 320MDCT, HR-pQCT, and tomosynthesis. At 0.01 mm intervals, radiography (POC-based system), 320MDCT, and HR-pQCT had strong correlations, while radiography (manual method) and CBCT had low correlations, and tomosynthesis had no statistically significant correlation. The smallest detectable changes for radiography (POC-based system), radiography (manual method), 320MDCT, HR-pQCT, CBCT, and tomosynthesis were 0.020 mm, 0.041 mm, 0.076 mm, 0.077 mm, 0.057 mm, and 0.087 mm, respectively. We conclude that radiography analyzed with the POC-based system might sensitively detect minute joint space changes of the finger joint.
  • A preliminary study of an ultrasound-based method for measuring talar displacement during the anterior drawer stress test using a Telos device
    Tsutsumi K, Nakaya U, Koshino Y, Tateno M, Matsumoto K, Tanaka M, Yokoyama M, Horie T, Samukawa M, Kamishima T, Tohyama H
    Dec. 2020
    Scientific journal
  • Validation of Fully Automatic Quantitative Software for Finger Joint Space Narrowing Progression for Rheumatoid Arthritis Patients.
    Chiaki Narisawa, Kenneth Sutherland, Yutong Lu, Akira Furusaki, Akira Sagawa, Tamotsu Kamishima
    Journal of digital imaging, 33, 6, 1387, 1392, Dec. 2020, [International Magazine]
    English, Scientific journal, In rheumatoid arthritis (RA), the radiographic progression of joint space narrowing (JSN) is evaluated using visual assessments. However, those methods are complicated and time-consuming. We developed an automatic system that can detect joint locations and compute the joint space difference index (JSDI), which was defined as the chronological change in JSN between two radiographs. The purpose of this study was to establish the validity of the software that automatically evaluates the temporal change of JSN. This study consisted of 39 patients with RA. All patients were treated with tocilizumab and underwent hand radiography (left and right hand separately) at 0, 6, and 12 months. The JSN was evaluated using mTSS (modified Total Sharp Score) by one musculoskeletal radiologist as well as our automatic system. Software measurement showed that JSDI between 0 and 12 months was significantly higher than that between 0 and 6 months (p < 0.01). While, there was no significant difference in mTSS between 0, 6, and 12 months. The group with higher disease activity at 0 months had significantly higher JSDI between 0 and 6 months than that with lower disease activity (p = 0.02). The automatic software can evaluate JSN progression of RA patients in the finger joint on X-ray.
  • Fibroma of tendon sheath of the hand in a 3-year-old boy: a case report.
    Hiroki Shibayama, Yuichiro Matsui, Daisuke Kawamura, Atsushi Urita, Chikako Ishii, Tamotsu Kamishima, Mutsumi Nishida, Ai Shimizu, Norimasa Iwasaki
    BMC musculoskeletal disorders, 21, 1, 732, 732, 10 Nov. 2020, [International Magazine]
    English, Scientific journal, BACKGROUND: Fibroma of tendon sheath (FTS) is a rare benign soft tissue tumor that often occurs in the upper extremities. It manifests as a slow-growing mass, often without tenderness or spontaneous pain. FTS occurs most commonly in people aged 20-40 years and is extremely rare in young children. Because FTS presents with atypical physical and imaging findings, it might be misdiagnosed as another soft tissue tumor such as a ganglion cyst or tenosynovial giant cell tumor (TSGCT). Although marginal resection is usually performed, a high rate of local recurrence is reported. CASE PRESENTATION: A boy aged 3 years and 1 month visited our outpatient clinic with a complaint of a mass of the left hand. An elastic hard mass approximately 20 mm in diameter could be palpated on the volar side of his left little finger. This mass was initially diagnosed as a ganglion cyst at another hospital. Ultrasonography revealed a well-circumscribed hypoechoic mass with internal heterogeneity on the flexor tendon. On magnetic resonance imaging (MRI), the mass showed iso signal intensity to muscle on T1-weighted images, and homogeneously low signal intensity to muscle on T2-weighted images. The mass was peripherally enhanced after contrast administration. FTS was initially suspected as the diagnosis on the basis of these imaging features. Because of the limited range of motion of his little finger, surgery was performed when he was 4 years old. Histopathological findings indicated the mass was well-circumscribed and contained scattered spindle cells embedded in a prominent collagenous matrix. The spindle cells contained elongated and cytologically bland nuclei with a fine chromatin pattern. Nuclear pleomorphism and multinucleated giant cells were not observed. On the basis of these findings, we made a diagnosis of FTS. One year after surgery, no signs of local recurrence were observed. CONCLUSIONS: We experienced an extremely rare case of FTS in the hand of a 3-year-old child. We especially recommend ultrasonography for hand tumors of young children to diagnose or eliminate ganglion cysts. MRI helped differentially diagnose FTS from TSGCT. Although marginal resection can be performed as a treatment, great care should be taken postoperatively because FTS has a high possibility of local recurrence.
  • Processes that enable public health professionals to organize preventive care support groups.
    Miki Oichi, Tamotsu Kamishima, Michiyo Hirano
    Public health nursing (Boston, Mass.), 37, 6, 880, 888, Nov. 2020, [International Magazine]
    English, Scientific journal, OBJECTIVES: This study examines the structure of the process that public health professionals (PHPs) use to organize preventive care groups for older adults and the elements that strengthen this process. DESIGN AND SAMPLE: The study was conducted using a quantitative descriptive design. Anonymous self-administered questionnaires were distributed by mail to 919 PHPs, including nurses and social workers employed by local governments in a Japanese prefecture, who facilitated recreational groups for older adults for the purposes of preventive care. Measures Items related to the process and the awareness of support were based on previous research. The process structure was examined using exploratory factor analysis, while multiple logistic regression analysis was used to study strengthening elements. RESULTS: The process yielded six factors (encouraging clarity with respect to the group's activity policy; creating connections with other resources; fostering independence; encouraging activity evaluation; creating relationships with group members; understanding the strengths and weaknesses of communities and individuals) with a total of 23 items. Two of three indicators of awareness of support were significantly related to the process. CONCLUSIONS: Understanding the importance of strengthening elements might improve support groups for older adults.
  • Fully automatic quantitative software for assessment of minute finger joint space narrowing progression on radiographs: evaluation in rheumatoid arthritis patients with long-term sustained clinical low disease activity.
    Kazuki Kato, Kenneth Sutherland, Yuki Tanaka, Masaru Kato, Jun Fukae, Kazuhide Tanimura, Tamotsu Kamishima
    Japanese journal of radiology, 38, 10, 979, 986, Oct. 2020, [Domestic magazines]
    English, Scientific journal, PURPOSE: Rheumatoid arthritis (RA) causes joint space narrowing (JSN) as a form of joint destruction. We developed an automatic system that can detect joint locations and compute the joint space difference index (JSDI), which was defined as the chronological change in JSN between two radiographs. This study aims to evaluate the application of "machine vision" for radiographic image of the finger joints. MATERIALS AND METHODS: Fifteen RA patients with long-term sustained clinical low disease activity were recruited. All patients underwent hand radiography and power Doppler ultrasonography (PDUS). The JSN was evaluated using the Genant-modified Sharp scoring (GSS) method and the automatic system. Synovial vascularity (SV) was assessed quantitatively using ultrasonography. RESULTS: There were no significant differences in the JSDI between the joints with JSN and those without JSN on GSS (p = 0.052). The JSDI of the joints with SV was significantly higher than those without SV (p = 0.043). The JSDI of the no therapeutic response group was significantly higher than those of the response group (p < 0.001). CONCLUSION: Our software can automatically evaluate temporal changes of JSN, which might free rheumatologists / radiologists from the burden of scoring hand radiography.
  • Non-tuberculosis Mycobacterium Tenosynovitis with Rice Bodies in a Patient with Systemic Lupus Erythematosus.
    Yuichiro Fujieda, Keita Ninagawa, Yuichiro Matsui, Michihiro Kono, Tamotsu Kamishima, Norimasa Iwasaki, Tatsuya Atsumi
    Internal medicine (Tokyo, Japan), 59, 18, 2317, 2320, 15 Sep. 2020, [Domestic magazines]
    English, Scientific journal, Infectious disease with various presentations in systemic lupus erythematosus often resembles lupus flare. A 37-year-old woman presented with a swollen left index finger that had not resolved, despite 7 years of immunosuppressive treatment. MRI showed rice-body formation in the flexor tendon sheath and tenosynovectomy demonstrated chronic synovitis with epithelioid granuloma. A mycobacterial culture confirmed invasive mycobacterial tenosynovitis due to Mycobacterium chelonae. The patient was treated with moxifloxacin and clarithromycin and completely recovered.
  • Relationship between Upper Body Posture Angle and Vertebral Body Posture Angle in Lateral Flexion and Rotation Posture
    Yoshio TSUCHIYA, Takayuki TANAKA, Tamotsu KAMISHIMA
    Advanced Biomedical Engineering, 9, 181, 188, Japanese Society for Medical and Biological Engineering, Sep. 2020, [Peer-reviewed]
    English, Research institution, Lumbar loading causes increased intervertebral pressure and is an important factor in low back pain. However, it is difficult to quantitatively judge the actions that affect lumbar load and the magnitude of lumbar load increase. Low back pain occurs not only in the workplace but also during activities of daily living. Therefore, it is necessary to investigate the factors inducing low back pain by measuring movements in various planes and determining the magnitude of the lumbar load. Accordingly, the lumbar spine should be examined during various movements. Several studies have examined vertebral bodies in the anteflexion posture. However, the relationship between body flexion angle and vertebral body angle during lateral flexion and rotation remains unknown. In this study, we proposed an estimation method for changes in vertebral body angle during lateral flexion and rotation in the lumbosacral region using a wearable sensor system we previously developed. The accuracy of the proposed estimation method was evaluated and demonstrated using X-ray images.
  • Editorial for "Clinical Potential of UTE-MRI for Assessing the COVID-19: Patient- and Lesion-Based Comparative Analysis".
    Tamotsu Kamishima, Yujie An, Wanxuan Fang, Yutong Lu
    Journal of magnetic resonance imaging : JMRI, 52, 3, 956, 957, Sep. 2020, [International Magazine]
    English
  • Fluvastatin prevents the development of arthritis in env-pX rats via up-regulation of Rho GTPase-activating protein 12.
    Shun Tanimura, Mutsumi Nishida, Tatsunori Horie, Tamotsu Kamishima, Hitomi Matsumoto, Yutaka Morimura, Yuka Nishibata, Sakiko Masuda, Daigo Nakazawa, Utano Tomaru, Tatsuya Atsumi, Akihiro Ishizu
    Experimental and molecular pathology, 115, 104454, 104454, Aug. 2020, [International Magazine]
    English, Scientific journal, The pleiotropic effects of statins, including an antiarthritic potential, have been noted. This study aimed to determine the efficacy of statins on rheumatoid arthritis (RA) and clarify how statins affect its pathogenesis. Fluvastatin (500 μg/kg/day) or vehicle was given per os to env-pX rats, which carry the human T-cell leukemia virus type I env-pX gene and spontaneously develop destructive arthritis mimicking RA, for 30 days. Blood sampling and ultrasonography (US) of the ankle joints were conducted on days 0, 10, 20, and 30. On day 30, all rats were euthanized, and the ankle joints were subjected to histological analysis. To clarify how fluvastatin affects the pathogenesis of RA, comprehensive serum exosomal microRNA (miRNA) analysis was performed. Gene expression in the primary culture of synovial fibroblasts derived from arthritic rat and human and non-arthritic rat periarticular tissues was determined quantitatively by real-time reverse transcription-polymerase chain reaction (RT-PCR). As a result, the development of arthritis in env-pX rats was significantly suppressed by fluvastatin, which was evident from the viewpoints of serology, US imaging, and histology. Comprehensive serum exosomal miRNA analysis suggested that the expression of Rho GTPase-activating protein 12 (Arhgap12) was decreased in arthritic env-pX rats but increased with the administration of fluvastatin. Corresponding results were obtained by quantitative RT- PCR using primary culture of synovial fibroblasts. The collective findings suggest that fluvastatin prevents the development of arthritis in env-pX rats via the up-regulation of ARHGAP12. This study suggests that ARHGAP12 can be a possible therapeutic target of RA.
  • 肝臓のMRエラストグラフィにおける閾値によるSemi-automatic Quantification Softwareの検証研究(Validation Study on Semi-automatic Quantification Software by Threshold Value for MR Elastography of the Liver)               
    Katsuumi Yuri, Kamishima Tamotsu, Sugimori Hiroyuki, Shimamura Tsuyoshi, Kawamura Norio, Takeda Hiroshi
    日本放射線技術学会総会学術大会予稿集, 76回, 318, 319, (公社)日本放射線技術学会, Mar. 2020
    English
  • Quick and accurate selection of hand images among radiographs from various body parts using deep learning.
    Kohei Fujiwara, Wanxuan Fang, Taichi Okino, Kenneth Sutherland, Akira Furusaki, Akira Sagawa, Tamotsu Kamishima
    Journal of X-ray science and technology, 28, 6, 1199, 1206, 2020, [International Magazine]
    English, Scientific journal, BACKGROUND: Although rheumatoid arthritis (RA) causes destruction of articular cartilage, early treatment significantly improves symptoms and delays progression. It is important to detect subtle damage for an early diagnosis. Recent software programs are comparable with the conventional human scoring method regarding detectability of the radiographic progression of RA. Thus, automatic and accurate selection of relevant images (e.g. hand images) among radiographic images of various body parts is necessary for serial analysis on a large scale. OBJECTIVE: In this study we examined whether deep learning can select target images from a large number of stored images retrieved from a picture archiving and communication system (PACS) including miscellaneous body parts of patients. METHODS: We selected 1,047 X-ray images including various body parts and divided them into two groups: 841 images for training and 206 images for testing. The training images were augmented and used to train a convolutional neural network (CNN) consisting of 4 convolution layers, 2 pooling layers and 2 fully connected layers. After training, we created software to classify the test images and examined the accuracy. RESULTS: The image extraction accuracy was 0.952 and 0.979 for unilateral hand and both hands, respectively. In addition, all 206 test images were perfectly classified into unilateral hand, both hands, and the others. CONCLUSIONS: Deep learning showed promise to enable efficiently automatic selection of target X-ray images of RA patients.
  • Computed diffusion-weighted imaging for differentiating synovial proliferation from joint effusion in hand arthritis.
    Yuki Tanaka, Motoshi Fujimori, Koichi Murakami, Hiroyuki Sugimori, Nozomi Oki, Takatoshi Aoki, Tamotsu Kamishima
    Rheumatology international, 39, 12, 2111, 2118, Dec. 2019, [Peer-reviewed], [International Magazine]
    English, Scientific journal, The objective of this study is to investigate computed DWI (cDWI) as an alternative method to contrast-enhanced MRI in comparison with directory measured DWI (mDWI) and apparent diffusion coefficient (ADC) for differentiating synovial proliferation from joint effusion. Nine patients suspected with RA (5 women) were included in this study. A radiologist identified region of interest (ROI) based on STIR, and evaluated using a 5-point grading scale of 0 (fluid) to 4 (synovial proliferation) according to the degree of contrast enhancement within the ROI. cDWI was synthesized for b values from 1000 to 2000 at 200 s/mm2 intervals using the combination of b values at mDWI. In addition to ADC values, contrast ratios were calculated using signal intensity for each ROI on the mDWI and cDWI. Visual assessment by a radiologist was conducted between pairs of STIR image and mDWI or cDWI. ROI grades were most significantly correlated with cDWI2000 based on b values of 400-1000 s/mm2 (rs = 0.405, p < 0.01). The area under the curve of cDWI2000 based on b values of 400-1000 s/mm2 (0.762) was larger than that of ADC values (0.570-0.608) when comparing low versus high contrast enhancement grades. Both cDWI1800 (200-1000) and cDWI2000 (400-1000) demonstrated high sensitivity and specificity in visual assessment (84.6% and 66.7%, respectively). The cDWI2000 based on b values of 400-1000 s/mm2 may be useful for noninvasive differentiation of synovial proliferation from joint effusion in hand arthritis.
  • Intravoxel incoherent motion MRI for discrimination of synovial proliferation in the hand arthritis: A prospective proof-of-concept study.
    Motoshi Fujimori, Koichi Murakami, Hiroyuki Sugimori, Yutong Lu, Kenneth Sutherland, Nozomi Oki, Takatoshi Aoki, Tamotsu Kamishima
    Journal of magnetic resonance imaging : JMRI, 50, 4, 1199, 1206, Oct. 2019, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • 肝臓のMR Elastography検査におけるスライス位置の検討               
    勝海 友里, 神島 保, 杉森 博行, 嶋村 剛, 川村 典生, 武田 宏司
    日本放射線技術学会雑誌, 75, 9, 1056, 1056, (公社)日本放射線技術学会, Sep. 2019
    Japanese
  • Quantitative power Doppler signal assessment in the subchondral bone region of the metacarpophalangeal joint is an effective predictor of radiographic progression in the hand of rheumatoid arthritis: a pilot study.
    Motoshi Fujimori, Tamotsu Kamishima, Akihiro Narita, Mihoko Henmi, Masaru Kato, Kenneth Sutherland, Mutsumi Nishida, Yuki Tanaka, Lu Yutong, Kazuhide Tanimura, Tatsuya Atsumi
    Rheumatology international, 39, 8, 1413, 1421, Aug. 2019, [International Magazine]
    English, Scientific journal, Ultrasonography is useful for assessment of synovitis in the hand of rheumatoid arthritis (RA) patients. The aim of this study was to investigate the predictive value of the quantitative power Doppler (PD) signal assessment in the subchondral bone region of the metacarpophalangeal (MCP) joint in patients with RA showing radiographic progression of the hand by comparing with those of previously reported scoring systems. Twenty-two patients (20 women) with RA who underwent power Doppler ultrasonography (PDUS) of the bilateral one to five MCP joints at baseline were included in the study. Radiography of both hands was performed at baseline and at 1 year. PDUS of the synovial space was evaluated according to semi-quantitative scoring (0-3) and quantitative measurement (0-100%). The PD signal in the subchondral bone region was qualitatively (0, 1) and quantitatively (mm2) assessed. The performance of PDUS assessment was compared using the area under the curve (AUC) of the receiver operating characteristic (ROC) curve and the risk ratio (RR). As a predictor for radiographic progression, the quantitative PD signal assessment in the subchondral bone region (AUC = 0.842, p < 0.01) was equivalent to quantitative vascularity (AUC = 0.817, p < 0.05) and semi-quantitative scoring (AUC = 0.754, p < 0.05). As for the RR of the PD signal in the subchondral bone region for radiographic progression, the quantitative PD signal assessment was 5.40 (p < 0.01), whereas the qualitative PD signal assessment was 1.60 (p = 0.204). Quantitative PD signal assessment in the subchondral bone region can predict radiographic progression in the hand of RA patients.
  • Detection of Increased Vascular Signal in Arthritis-Prone Rats Without Joint Swelling Using Superb Microvascular Imaging Ultrasonography.
    Tatsunori Horie, Mutsumi Nishida, Shun Tanimura, Tamotsu Kamishima, Erika Tamai, Yutaka Morimura, Yuka Nishibata, Sakiko Masuda, Daigo Nakazawa, Utano Tomaru, Tatsuya Atsumi, Akihiro Ishizu
    Ultrasound in medicine & biology, 45, 8, 2086, 2093, Aug. 2019, [Peer-reviewed], [International Magazine]
    English, Scientific journal, This study aimed to determine whether ultrasonography (US) can detect increased vascular signal in the synovial tissue before overt synovitis in rheumatoid arthritis (RA). Env-pX rats that spontaneously develop RA-like synovitis were used. Ankle joints of 15 pre-morbid env-pX rats were observed with power Doppler and superb microvascular imaging (SMI) using an ultrahigh-frequency (8-24 MHz) probe. Signal values were counted as the number of pixels. The total number of vessels and vessel area in the synovial tissue were histologically evaluated. Dilated vessels were determined from the mean value of synovial vessels in three wild-type rats. In all env-pX rats, apparent synovial proliferation was not observed. However, vasodilation was evident. Only SMI values were significantly correlated with the number of dilated vessels (r = 0.585, p = 0.022) but not with the total number of vessels. US with SMI using ultrahigh-frequency probe can detect increased vascular signal in the synovial tissue of arthritis-prone rats.
  • Detection of Fine Radiographic Progression in Finger Joint Space Narrowing Beyond Human Eyes: Phantom Experiment and Clinical Study with Rheumatoid Arthritis Patients.
    Kazuki Kato, Nobutoshi Yasojima, Kenichi Tamura, Shota Ichikawa, Kenneth Sutherland, Masaru Kato, Jun Fukae, Kazuhide Tanimura, Yuki Tanaka, Taichi Okino, Yutong Lu, Tamotsu Kamishima
    Scientific reports, 9, 1, 8526, 8526, 12 Jun. 2019, [International Magazine]
    English, Scientific journal, The visual assessment of joint space narrowing (JSN) on radiographs of rheumatoid arthritis (RA) patients such as the Genant-modified Sharp score (GSS) is widely accepted but limited by its subjectivity and insufficient sensitivity. We developed a software application which can assess JSN quantitatively using a temporal subtraction technique for radiographs, in which the chronological change in JSN between two radiographs was defined as the joint space difference index (JSDI). The aim of this study is to prove the superiority of the software in terms of detecting fine radiographic progression in finger JSN over human observers. A micrometer measurement apparatus that can adjust arbitrary joint space width (JSW) in a phantom joint was developed to define true JSW. We compared the smallest detectable changes in JSW between the JSDI and visual assessment using phantom images. In a clinical study, 222 finger joints without interval score change on GSS in 15 RA patients were examined. We compared the JSDI between joints with and without synovial vascularity (SV) on power Doppler ultrasonography during the follow-up period. True JSW difference was correlated with JSDI for JSW differences ranging from 0.10 to 1.00 mm at increments of 0.10 mm (R2 = 0.986 and P < 0.001). Rheumatologists were difficult to detect JSW difference of 0.30 mm or less. The JSDI of finger joints with SV was significantly higher than those without SV (P = 0.030). The software can detect fine differences in JSW that are visually unrecognizable.
  • 軟骨下骨領域におけるパワードプラ血流信号の定量評価 関節破壊の予後予測
    藤森 元嗣, 田中 悠貴, Lu Yutong, 勝海 友里, 中川 紗良, 神島 保, 成田 明宏, 邉見 美穂子, 谷村 一秀, 加藤 将, 渥美 達也, Sutherland Kenneth, 西田 睦
    北海道医学雑誌, 94, 1, 58, 59, 北海道医学会, May 2019
    Japanese
  • 関節リウマチにおける滑膜増殖評価:IVIM MRI
    藤森元嗣, LU Yutong, 藤原滉平, 村上公一, 杉森博之, 神島保, SUTHERLAND Kenneth, 大木望, 青木隆敏
    北海道医学雑誌, 94, 1, 57‐58, 58, 北海道医学会, May 2019, [Peer-reviewed]
    Japanese, Scientific journal
  • 肝MRエラストグラフィーの半自動定量化ソフトウェアに関する検証研究(Validation Study on Semi-Automatic Quantification Software for MR Elastography of the Liver)               
    Katsuumi Yuri, Kamishima Tamotsu, Sugimori Hiroyuki, Shimamura Tsuyoshi, Kawamura Norio, Takeda Hiroshi
    日本放射線技術学会総会学術大会予稿集, 75回, 211, 212, (公社)日本放射線技術学会, Mar. 2019
    English
  • Automatic Radiographic Quantification of Joint Space Narrowing Progression in Rheumatoid Arthritis Using POC.
    Yafei Ou, Prasoon Ambalathankandy, Takeshi Shimada, Tamotsu Kamishima, Masayuki Ikebe
    16th IEEE International Symposium on Biomedical Imaging(ISBI), 1183, 1187, IEEE, 2019
    International conference proceedings
  • 幼児の手指に発生した腱鞘線維腫(Fibroma of the Tendon Sheath)の1例
    石井 智佳子, 松井 雄一郎, 河村 太介, 瓜田 淳, 新井 隆太, 岩崎 倫政, 神島 保, 岩井 孝仁, 西田 睦, 清水 亜衣
    北海道整形災害外科学会雑誌, 61, 137th suppl, 41, 41, 北海道整形災害外科学会, 2019
    Japanese
  • 全自動解析ソフトウェアによるリウマチ患者の関節裂隙狭小化進行評価
    田中 悠貴, 近藤 麻菜, 市川 翔太, 神島 保, 高橋 英治, 古崎 章, 天崎 吉晴
    北海道医学雑誌, 93, 2, 123, 123, 北海道医学会, Nov. 2018
    Japanese
  • 関節リウマチの関節破壊進行予測におけるパワードプラ超音波検査の定量的評価の有用性
    瀬野 結実香, 勝海 友里, 藤森 元嗣, 堀江 達則, 西田 睦, 神島 保, 加藤 將, 保田 晋助, 渥美 達也
    北海道医学雑誌, 93, 2, 123, 123, 北海道医学会, Nov. 2018
    Japanese
  • Active synovitis in the presence of osteitis predicts residual synovitis in patients with rheumatoid arthritis with a clinical response to treatment.
    Jun Fukae, Kazuhide Tanimura, Masato Isobe, Akemi Kitano, Mihoko Henmi, Maria Nakai, Yuko Aoki, Fumihiko Sakamoto, Akihiro Narita, Takeya Ito, Akio Mitsuzaki, Megumi Matsuhashi, Masato Shimizu, Tamotsu Kamishima, Tatsuya Atsumi, Takao Koike
    International journal of rheumatic diseases, 21, 10, 1809, 1814, Oct. 2018, [Peer-reviewed], [International Magazine]
    English, Scientific journal, AIM: To clarify the relationship between active synovitis/osteitis and subsequent residual synovitis (R-synovitis) in patients with rheumatoid arthritis (RA). METHODS: Three hundred and twenty finger joints of 16 patients with active RA at baseline (Disease Activity Score with 28 joints - erythrocyte sedimentation rate > 3.2) who subsequently achieved clinical low disease activity or remission afterwards were analyzed. Synovial vascularity (SV) was assessed according to a semi-quantitative ultrasound score (grades 0-3). Active synovitis was defined by SV positivity at baseline. R-synovitis was defined by the presence of grade > 2 SV at the 24th week. Osteitis was detected by magnetic resonance imaging (MRI) at baseline as trabecular bone lesions with water content and indistinct margins. RESULTS: Ultrasonography detected active synovitis in 116 joints at baseline. Forty-seven joints had R-synovitis at the 24th week. MRI detected osteitis in 12 joints at baseline. The presence of active synovitis with osteitis at baseline was significantly correlated with R-synovitis at the 24th week. CONCLUSIONS: Active synovitis in the presence of osteitis predicted R-synovitis regardless of whether there was a clinical improvement in RA.
  • Autologous Osteochondral Mosaicplasty for Centrally and Laterally Located, Advanced Capitellar Osteochondritis Dissecans in Teenage Athletes: Clinical Outcomes, Radiography, and Magnetic Resonance Imaging Findings.
    Tadanao Funakoshi, Daisuke Momma, Yuki Matsui, Tamotsu Kamishima, Yuichiro Matsui, Daisuke Kawamura, Yusuke Nagano, Norimasa Iwasaki
    The American journal of sports medicine, 46, 8, 1943, 1951, Jul. 2018, [Peer-reviewed], [International Magazine]
    English, Scientific journal, BACKGROUND: Autologous osteochondral mosaicplasty (ie, mosaicplasty) results in satisfactory clinical outcomes and reliable return to play for patients with large or unstable lesions due to osteochondritis dissecans (OCD) of the humeral capitellum. However, the association between the healing of the reconstructed cartilage and clinical outcomes remains unclear. PURPOSE: To evaluate the efficacy of mosaicplasty in teenage athletes through use of clinical scores and imaging. The secondary purpose was to compare the clinical outcomes with images of centrally and laterally located lesions. STUDY DESIGN: Case series; Level of evidence, 4. METHODS: This study analyzed 22 elbows (all male patients; mean age, 13.5 ± 1.2 years) with capitellar OCD managed with mosaicplasty. Patients were divided into 2 groups according to the location of the lesions: central (10 patients) and lateral (12 patients). Evaluation was performed through use of the clinical rating system of Timmerman and Andrews, plain radiographs, and magnetic resonance imaging (MRI; the cartilage repair monitoring system of Roberts). The mean follow-up period was 27.5 months (range, 24-48 months). RESULTS: Lateral lesions were significantly larger than central lesions (147.1 ± 51.9 mm2 vs 95.5 ± 27.4 mm2, P = .01). No other significant differences were found between central and lateral lesions. Timmerman and Andrews scores for both central and lateral lesions improved significantly from 125.0 ± 30.1 points and 138.3 ± 34.5 points preoperatively to 193.5 ± 11.3 points and 186.7 ± 18.1 points, respectively, at final follow-up ( P < .0001, P < .0001). Radiography identified complete graft incorporation in all cases and the absence of severe osteoarthritic changes or displaced osteochondral fragments. In the lateral group, the radial head ratio at final follow-up (1.83 ± 0.23) was significantly larger than the preoperative findings (1.75 ± 0.14, P = .049). The quality of joint surface reconstruction was found to be acceptable for central and lateral lesions on MRI evaluation. CONCLUSION: Mosaicplasty resulted in satisfactory clinical outcomes and smooth cartilage surface integrity in teenage athletes with OCD on their return to competition-level sports activities irrespective of lesion location.
  • Composite assessment of power Doppler ultrasonography and MRI in rheumatoid arthritis: a pilot study of predictive value in radiographic progression after one year.
    Motoshi Fujimori, Tamotsu Kamishima, Masaru Kato, Yumika Seno, Kenneth Sutherland, Hiroyuki Sugimori, Mutsumi Nishida, Tatsuya Atsumi
    The British journal of radiology, 91, 1086, 20170748, 20170748, Jun. 2018, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • Radiographic temporal subtraction analysis can detect finger joint space narrowing progression in rheumatoid arthritis with clinical low disease activity.
    Taichi Okino, Tamotsu Kamishima, Kenneth Lee Sutherland, Jun Fukae, Akihiro Narita, Shota Ichikawa, Kazuhide Tanimura
    Acta radiologica (Stockholm, Sweden : 1987), 59, 4, 460, 467, SAGE Publications Inc., Apr. 2018, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • 超音波とMRIの複合的評価は生物学的疾患修飾性抗リウマチ薬(bDMARDs)を投与中の関節リウマチにおけるX線上の関節破壊の予測能を改善する(Composite Assessment of Ultrasonography and MRI Improves the Prognostic Power of Joint Destruction on Radiograph in Rheumatoid Arthritis on Biological Disease-modifying Antirheumatic Drugs(bDMARDs))               
    Fujimori Motoshi, Kamishima Tamotsu, Seno Yumika, Sugimori Hiroyuki, Nishida Mutsumi, Atsumi Tatsuya
    日本放射線技術学会総会学術大会予稿集, 74回, 231, 232, (公社)日本放射線技術学会, Mar. 2018
    English
  • リウマチ性疾患の画像2:関節エコーその他 超高周波プローブを用いたSuperb Micro-vascular Imagingによる超音波検査でのラット足関節の早期関節炎診断               
    西田 睦, 谷村 瞬, 神島 保, 西端 友香, 益田 紗季子, 中沢 大悟, 外丸 詩野, 渥美 達也, 石津 明洋
    日本リウマチ学会総会・学術集会プログラム・抄録集, 62回, 485, 485, (一社)日本リウマチ学会, Mar. 2018
    Japanese
  • スタチンの関節炎抑制効果とその機序の解明               
    谷村 瞬, 西田 睦, 神島 保, 西端 友香, 益田 紗季子, 中沢 大悟, 外丸 詩野, 渥美 達也, 石津 明洋
    日本リウマチ学会総会・学術集会プログラム・抄録集, 62回, 778, 778, (一社)日本リウマチ学会, Mar. 2018
    Japanese
  • Quantification of hand synovitis in rheumatoid arthritis: Arterial mask subtraction reinforced with mutual information can improve accuracy of pixel-by-pixel time-intensity curve shape analysis in dynamic MRI.
    Yuto Kobayashi, Tamotsu Kamishima, Hiroyuki Sugimori, Shota Ichikawa, Atsushi Noguchi, Michihito Kono, Toshitake Iiyama, Kenneth Sutherland, Tatsuya Atsumi
    Journal of magnetic resonance imaging : JMRI, 48, 3, 687, 694, 01 Mar. 2018, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • Longitudinal CT study of sarcopenia due to hepatic failure after living donor liver transplantation.
    Takahiro Onuma, Tamotsu Kamishima, Tsuyoshi Shimamura, Norio Kawamura, Kenichiro Yamashita, Kenneth Sutherland, Hiroshi Takeda
    Quantitative imaging in medicine and surgery, 8, 1, 25, 31, AME Publishing Company, Feb. 2018, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • Quantitative knee cartilage measurement at MR imaging of patients with anterior cruciate ligament tear.
    Kazuki Kato, Tamotsu Kamishima, Eiji Kondo, Tomohiro Onodera, Shota Ichikawa
    Radiological physics and technology, 10, 4, 431, 438, Springer Tokyo, Dec. 2017, [Peer-reviewed], [Domestic magazines]
    English, Scientific journal
  • Effectiveness of whole-body magnetic resonance imaging for the efficacy of biologic anti-rheumatic drugs in patients with rheumatoid arthritis: A retrospective pilot study.
    Michihito Kono, Tamotsu Kamishima, Shinsuke Yasuda, Keita Sakamoto, Sawako Abe, Atsushi Noguchi, Toshiyuki Watanabe, Yuka Shimizu, Kenji Oku, Toshiyuki Bohgaki, Olga Amengual, Tetsuya Horita, Tatsuya Atsumi
    Modern rheumatology, 27, 6, 953, 960, Nov. 2017, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • Maintenance treatment using abatacept with dose reduction after achievement of low disease activity in patients with rheumatoid arthritis (MATADOR) - A prospective, multicenter, single arm pilot clinical trial.
    Shinsuke Yasuda, Kazumasa Ohmura, Hiroshi Kanazawa, Takashi Kurita, Yujiro Kon, Tomonori Ishii, Yuichiro Fujieda, Satoshi Jodo, Kazuhide Tanimura, Michio Minami, Tomomasa Izumiyama, Takumi Matsumoto, Yoshiharu Amasaki, Yoko Suzuki, Hideki Kasahara, Naofumi Yamauchi, Masaru Kato, Tamotsu Kamishima, Akito Tsutsumi, Hiromitsu Takemori, Takao Koike, Tatsuya Atsumi
    Modern rheumatology, 27, 6, 930, 937, Nov. 2017, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • Power Doppler signal calibration in the finger joint between two models of ultrasound machine: a pilot study using a phantom and joints in patients with rheumatoid arthritis.
    Ryosuke Sakano, Katsumi Saito, Tamotsu Kamishima, Mutsumi Nishida, Tatsunori Horie, Atsushi Noguchi, Michihito Kono, Kenneth Sutherland, Tatsuya Atsumi
    Acta radiologica (Stockholm, Sweden : 1987), 58, 10, 1238, 1244, Oct. 2017, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • Computer-Based Radiographic Quantification of Joint Space Narrowing Progression Using Sequential Hand Radiographs: Validation Study in Rheumatoid Arthritis Patients from Multiple Institutions.
    Shota Ichikawa, Tamotsu Kamishima, Kenneth Sutherland, Jun Fukae, Kou Katayama, Yuko Aoki, Takanobu Okubo, Taichi Okino, Takahiko Kaneda, Satoshi Takagi, Kazuhide Tanimura
    Journal of digital imaging, 30, 5, 648, 656, Oct. 2017, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • 関節リウマチ患者の関節腔狭隘化を定量的に評価するためのcomputer-based temporal subtraction法(Quantitative Assessment of Joint Space Narrowing Progression in the Feet of Rheumatoid Arthritis Patients Using a Computer-based Temporal Subtraction Method)               
    田中 悠貴, 千葉 拓貴, 神島 保, 市川 翔太, 沖野 太一, 深江 淳, 青木 悠子, 谷村 一秀
    日本放射線技術学会雑誌, 73, 9, 832, 832, (公社)日本放射線技術学会, Sep. 2017
    English
  • Superb micro-vascular imaging法のシグナル強度と関節内血管径の関係性 関節リウマチの実験動物モデル(Relationship between Superb Micro-vascular Imaging Signal Quantity and Vessel Diameter in the Joints: Experimental Animal Models of Rheumatoid Arthritis)               
    玉井 絵里香, 神島 保, 森村 豊, 堀江 達則, 谷村 瞬, 西田 睦, 石津 明洋, 外丸 詩野
    日本放射線技術学会雑誌, 73, 9, 855, 855, (公社)日本放射線技術学会, Sep. 2017
    English
  • Cartilage quantification using contrast-enhanced MRI in the wrist of rheumatoid arthritis: cartilage loss is associated with bone marrow edema.
    Motoshi Fujimori, Satoko Nakamura, Kiminori Hasegawa, Kunihiro Ikeno, Shota Ichikawa, Kenneth Sutherland, Tamotsu Kamishima
    The British journal of radiology, 90, 1077, 20170167, 20170167, Aug. 2017, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • Visceral adipose tissue area measurement at a single level: can it represent visceral adipose tissue volume?
    Yusuke Noumura, Tamotsu Kamishima, Kenneth Sutherland, Hideho Nishimura
    The British journal of radiology, 90, 1077, 20170253, 20170253, Aug. 2017, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • Semi-Automated Quantification of Finger Joint Space Narrowing Using Tomosynthesis in Patients with Rheumatoid Arthritis.
    Shota Ichikawa, Tamotsu Kamishima, Kenneth Sutherland, Hideki Kasahara, Yuka Shimizu, Motoshi Fujimori, Nobutoshi Yasojima, Yohei Ono, Takahiko Kaneda, Takao Koike
    Journal of digital imaging, 30, 3, 369, 375, Jun. 2017, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • Pre-operative volume rather than area of skeletal muscle is a better predictor for post-operative risks for respiratory complications in living-donor liver transplantation.
    Yuki Wada, Tamotsu Kamishima, Tsuyoshi Shimamura, Norio Kawamura, Kenichiro Yamashita, Kenneth Sutherland, Hiroshi Takeda
    The British journal of radiology, 90, 1072, 20160938, 20160938, Apr. 2017, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • 関節リウマチにおける手の滑膜炎定量のためのダイナミック造影強調MRIを用いた簡易的なアプローチ 完全自動化した全画素の分析(Simplified Approach to Quantification for Hand Synovitis in Rheumatoid Arthritis Using Dynamic Contrast Enhanced MRI: Full-Automatic Pixel-By-Pixel Analysis)               
    Kobayashi Yuto, Kamishima Tamotsu, Ichikawa Shota, Sugimori Hiroyuki, Noguchi Atsushi, Kono Michihito, Atsumi Tatsuya
    日本放射線技術学会総会学術大会予稿集, 73回, 178, 179, (公社)日本放射線技術学会, Mar. 2017
    English
  • 関節リウマチの治療 用法・用量・スイッチ・無効・減量・中止 アバタセプト減量による関節リウマチ維持療法 北海道・東北地域での多施設前向き介入試験               
    保田 晋助, 大村 一将, 金澤 洋, 栗田 崇史, 近 祐次郎, 石井 智徳, 藤枝 雄一郎, 浄土 智, 谷村 一秀, 三浪 三千男, 泉山 朋政, 松本 巧, 天崎 吉晴, 鈴木 陽子, 笠原 英樹, 山内 尚文, 加藤 将, 神島 保, 堤 明人, 竹森 弘光, 小池 隆夫, 渥美 達也
    日本リウマチ学会総会・学術集会プログラム・抄録集, 61回, 565, 565, (一社)日本リウマチ学会, Mar. 2017, [Peer-reviewed]
    Japanese
  • A reliability study using computer-based analysis of finger joint space narrowing in rheumatoid arthritis patients.
    Katsuya Hatano, Tamotsu Kamishima, Kenneth Sutherland, Masaru Kato, Ikuma Nakagawa, Shota Ichikawa, Keisuke Kawauchi, Shota Saitou, Masaya Mukai
    Rheumatology international, 37, 2, 189, 195, Feb. 2017, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • Pixel-by-Pixel Arterial Spin Labeling Blood Flow Pattern Variation Analysis for Discrimination of Rheumatoid Synovitis: A Pilot Study.
    Taro Sakashita, Tamotsu Kamishima, Hiroyuki Sugimori, Minghui Tang, Atsushi Noguchi, Michihito Kono, Kenneth Sutherland, Tatsuya Atsumi
    Magnetic resonance in medical sciences : MRMS : an official journal of Japan Society of Magnetic Resonance in Medicine, 16, 1, 78, 83, 10 Jan. 2017, [Peer-reviewed], [Domestic magazines]
    English, Scientific journal
  • Relationship between power Doppler grade and the pathological blood vessel features in long-standing rheumatoid arthritis.
    Katsumi Saito, Asami Abe, Tamotsu Kamishima, Hajime Ishikawa, Kunihiko Wakaki, Akihiro Ishizu
    Rheumatology international, 36, 12, 1689, 1690, Dec. 2016, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • Tomosynthesis can facilitate accurate measurement of joint space width under the condition of the oblique incidence of X-rays in patients with rheumatoid arthritis.
    Yohei Ono, Rina Kashihara, Nobutoshi Yasojima, Hideki Kasahara, Yuka Shimizu, Kenichi Tamura, Kaori Tsutsumi, Kenneth Sutherland, Takao Koike, Tamotsu Kamishima
    The British journal of radiology, 89, 1062, 20150967, 20150967, Jun. 2016, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • Bizarre parosteal osteochondromatous proliferation (Nora's lesion) affecting the distal end of the ulna: a case report.
    Yuichiro Matsui, Tadanao Funakoshi, Hideyuki Kobayashi, Tomoko Mitsuhashi, Tamotsu Kamishima, Norimasa Iwasaki
    BMC musculoskeletal disorders, 17, 130, 130, 16 Mar. 2016, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • MRI of the wrist and fingers
    KAMISHIMA Tamotsu
    Medical Imaging and Information Sciences, 33, 1, 4, 7, MEDICAL IMAGING AND INFORMATION SCIENCES, 2016
    Japanese, Current magnetic resonance imaging (MRI) techniques and high‐quality coil system can provide exquisite anatomic detail of the wrist and fingers. They present a valuable tool for assessment and characterization of traumatic injuries to small structures, various arthropathies, and neoplastic processes. As imaging quality continues to improve, the clinical significance of MRI of this field becomes more apparent in the evaluation and management of these entities.
  • A proposal of lumbosacral load wearable sensor and lumbosacral alignment estimation based on X-ray image
    土谷圭央, 日下聖, 田中孝之, 松尾祥和, 小田まこと, 笹木工, 神島保, 山中正紀
    日本機械学会論文集(Web), 82, 843, ROMBUNNO.16‐00072(J‐STAGE), 00072-16-00072, 一般社団法人 日本機械学会, 2016, [Peer-reviewed]
    Japanese, <p>Anteflexion of the spine is essential for many physical activities of daily living. However, this motion places the lumbar disks because it generats heavy load due to changes in the shape of the lumbar spine and can lead to low back pain. In older to reduce low back pain, here we proposed a wearable sensor system configuration that can estimate lumbosacral alignment and lumbar load by measuring the shape of the lumbar skin when the lumbosacral alignment changes. The shape of the lumbar skin and posture angle are measured by using curvature sensors and accelerometers. In addition, the system must be constructed in consideration of the physique, in order to absorb in a variety of human. We proposed this system by measuring the body parameters of anteflexion and studied the change in dimensions of the lumbar spine from changes in posture. By extracting the dimensions of the lumbosacral spine in X-ray images, the attitude angle, body surface area and the dimensions of the lumbosacral spine have relevance. The lumbosacral dimensions calibration method was developed by using that relation. Lumbosacral alignment estimation considering the difference in physiques is developed, and lumbosacral spine alignment was to improve the estimation accuracy. The proposed method could improve accuracy lumbosacral alignment estimation.</p>
  • A Calibration Method for Interbody Distance in Lumbosacral Alignment Estimation.
    Yoshio Tsuchiya, Takashi Kusaka, Takayuki Tanaka, Yoshikazu Matsuo, Makoto Oda, Tsukasa Sasaki, Tamotsu Kamishima, Masanori Yamanaka
    Intelligent Robotics and Applications - 9th International Conference, ICIRA 2016, Tokyo, Japan, August 22-24, 2016, Proceedings, Part II, 200, 210, Springer, 2016, [Peer-reviewed]
  • Detection and measurement of rheumatoid bone and joint lesions of fingers by tomosynthesis: a phantom study for reconstruction filter setting optimization.
    Yohei Ono, Tamotsu Kamishima, Nobutoshi Yasojima, Kenichi Tamura, Kaori Tsutsumi
    Radiological physics and technology, 9, 1, 6, 14, Springer Tokyo, Jan. 2016, [Peer-reviewed], [Domestic magazines]
    English, Scientific journal
  • Performance of computer-based analysis using temporal subtraction to assess joint space narrowing progression in rheumatoid patients.
    Shota Ichikawa, Tamotsu Kamishima, Kenneth Sutherland, Takanobu Okubo, Kou Katayama
    Rheumatology international, 36, 1, 101, 8, Jan. 2016, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • Consensus-based identification of factors related to false-positives in ultrasound scanning of synovitis and tenosynovitis.
    Kei Ikeda, Akihiro Narita, Michihiro Ogasawara, Shigeru Ohno, Yutaka Kawahito, Atsushi Kawakami, Hiromu Ito, Isao Matsushita, Takeshi Suzuki, Kenta Misaki, Takehisa Ogura, Tamotsu Kamishima, Yohei Seto, Ryuichi Nakahara, Atsushi Kaneko, Takayuki Nakamura, Mihoko Henmi, Jun Fukae, Keiichiro Nishida, Takayuki Sumida, Takao Koike
    Modern rheumatology, 26, 1, 9, 14, 2016, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • Radiographic quantifications of joint space narrowing progression by computer-based approach using temporal subtraction in rheumatoid wrist.
    Shota Ichikawa, Tamotsu Kamishima, Kenneth Sutherland, Takanobu Okubo, Kou Katayama
    The British journal of radiology, 89, 1057, 20150403, 20150403, 2016, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • Accurate quantitative assessment of synovitis in rheumatoid arthritis using pixel-by-pixel, time-intensity curve shape analysis.
    Taro Sakashita, Tamotsu Kamishima, Yuto Kobayashi, Hiroyuki Sugimori, Minghui Tang, Kenneth Sutherland, Atsushi Noguchi, Michihito Kono, Tatsuya Atsumi
    The British journal of radiology, 89, 1061, 20151000, 20151000, 2016, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • リウマチ超音波検査機器に関するアンケート調査報告
    齋藤 克己, 神島 保, 坂野 稜典, 堀江 達則, 西田 睦, 成田 明宏, 谷村 一秀, 小池 隆夫
    北海道医学雑誌, 90, 2, 144, 144, 北海道医学会, Nov. 2015
    Japanese
  • 18F-FDG-PET/CT better localizes active spinal infection than MRI for successful minimally invasive surgery.
    Masayuki Nakahara, Manabu Ito, Naoya Hattori, Keiichi Magota, Masahiko Takahata, Ken Nagahama, Hideki Sudo, Tamotsu Kamishima, Nagara Tamaki, Norimasa Iwasaki
    Acta radiologica (Stockholm, Sweden : 1987), 56, 7, 829, 36, Jul. 2015, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • Absolute reliability of adipose tissue volume measurement by computed tomography: application of low-dose scan and minimal detectable change--a phantom study.
    Takahiro Onuma, Tamotsu Kamishima, Tsukasa Sasaki, Motomichi Sakata
    Radiological physics and technology, 8, 2, 312, 9, Springer Tokyo, Jul. 2015, [Peer-reviewed], [Domestic magazines]
    English, Scientific journal
  • 腱板付着部の血流よりみた腱板断裂の成因とその治癒過程               
    船越 忠直, 西田 睦, 神島 保, 瓜田 淳, 末永 直樹, 岩崎 倫政
    日本整形外科学会雑誌, 89, 2, S434, S434, (公社)日本整形外科学会, Mar. 2015
    Japanese
  • リウマチ性滑膜炎の描出 従来型のコントラスト造影MRIに対する二重標識後待ち時間(PLD)測定を利用したASL画像分析法の利点(Depiction of Rheumatoid Synovitis: Advantage of ASL Imaging Analysis Using Dual Post Labeling Delay(PLD) Settings Over Conventional Contrast Enhanced MRI)               
    Sakashita Taro, Kamishima Tamotsu, Sugimori Hiroyuki, Tou Meiki, Noguchi Atsushi, Kono Michihito, Atsumi Tatsuya
    日本放射線技術学会総会学術大会予稿集, 71回, 185, 185, (公社)日本放射線技術学会, Feb. 2015
    English
  • 関節リウマチ診療におけるパワードプラ超音波検査の機種間差 PRF設定と滑膜血流描出能の関係               
    坂野 稜典, 神島 保, 西田 睦, 堀江 達則
    超音波医学, 42, 1, 94, 94, (公社)日本超音波医学会, Jan. 2015
    Japanese
  • Bilateral breast MRI by use of dual-source parallel radiofrequency excitation and image-based shimming at 3 Tesla: improvement in homogeneity on fat-suppression imaging.
    Kinya Ishizaka, Fumi Kato, Satoshi Terae, Suzuko Mito, Noriko Oyama-Manabe, Tamotsu Kamishima, Mitsuhiro Nakanishi, Hiroyuki Sugimori, Hiroyuki Hamaguchi, Hiroki Shirato
    Radiological physics and technology, 8, 1, 4, 12, Jan. 2015, [Peer-reviewed], [Domestic magazines]
    English, Scientific journal, In this study, we aimed to compare fat-suppression homogeneity on breast MR imaging by using dual-source parallel radiofrequency excitation and image-based shimming (DS-IBS) with single-source radiofrequency excitation with volume shim (SS-Vol) at 3 Tesla. Twenty patients were included. Axial three-dimensional T1-weighted turbo-field-echo breast images with DS-IBS and SS-Vol were obtained. Fat suppression was scored with four grade points. The contrast of the pectoral muscle and the fat in each breast area was obtained in the head medial, head lateral, foot medial, and foot lateral areas. The axillary space was calculated and compared between DS-IBS and SS-Vol. The average DS-IBS score was significantly higher than that of SS-Vol. The mean contrasts of fat in the foot lateral areas and axillary spaces on DS-IBS images were significantly higher than on SS-Vol images.
  • Power Doppler signal calibration between ultrasound machines by use of a capillary-flow phantom for pannus vascularity in rheumatoid finger joints: a basic study.
    Ryosuke Sakano, Tamotsu Kamishima, Mutsumi Nishida, Tatsunori Horie
    Radiological physics and technology, 8, 1, 120, 4, Springer-Verlag Tokyo, Jan. 2015, [Peer-reviewed], [Domestic magazines]
    English, Scientific journal
  • Calibration method for lumbosacral dimensions in wearable sensor system of lumbar alignment.
    Yoshio Tsuchiya, Takashi Kusaka, Takayuki Tanaka, Yoshikazu Matsuo, Makoto Oda, Tsukasa Sasaki, Tamotsu Kamishima, Masanori Yamanaka
    Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference, 2015, 3909, 12, 2015, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • Efficacy of Tocilizumab in Patients with Rheumatoid Arthritis: Sequential Evaluation Using Whole-Body Magnetic Resonance Imaging.
    Michihito Kono, Shinsuke Yasuda, Kazumasa Ohmura, Tomoko Fukui, Sanae Shimamura, Ikuma Nakagawa, Atsushi Noguchi, Haruki Shida, Toshiyuki Watanabe, Yuka Shimizu, Takashi Kurita, Kenji Oku, Toshiyuki Bohgaki, Olga Amengual, Tetsuya Horita, Keita Sakamoto, Tamotsu Kamishima, Tatsuya Atsumi
    ARTHRITIS & RHEUMATOLOGY, 66, S518, S518, Oct. 2014, [Peer-reviewed]
    English
  • 単純X線写真におけるリウマチ患者の関節裂隙狭小化の変化 経時差分技術を用いた検討               
    佐々木 亮祐, 神島 保, 市川 翔太, Sutherland Kenneth, 大久保 学宣, 片山 耕
    日本放射線技術学会雑誌, 70, 9, 1054, 1054, (公社)日本放射線技術学会, Sep. 2014
    Japanese
  • 単純X線写真に対する経時差分技術を用いたリウマチ患者の関節裂隙狭小化評価 手根部関節への応用               
    市川 翔太, 神島 保, 佐々木 亮祐, Sutherland Kenneth, 大久保 学宣, 片山 耕
    日本放射線技術学会雑誌, 70, 9, 1054, 1055, (公社)日本放射線技術学会, Sep. 2014
    Japanese
  • 手関節のリウマチ滑膜炎におけるPixel-by-Pixel TIC解析               
    坂下 太郎, 神島 保, 杉森 博行, 唐 明輝, 河野 通仁, 渥美 達也
    日本放射線技術学会雑誌, 70, 9, 965, 965, (公社)日本放射線技術学会, Sep. 2014
    Japanese
  • Structural deterioration of finger joints with ultrasonographic synovitis in rheumatoid arthritis patients with clinical low disease activity.
    Jun Fukae, Masato Isobe, Akemi Kitano, Mihoko Henmi, Fumihiko Sakamoto, Akihiro Narita, Takeya Ito, Akio Mitsuzaki, Masato Shimizu, Kazuhide Tanimura, Megumi Matsuhashi, Tamotsu Kamishima, Tatsuya Atsumi, Takao Koike
    Rheumatology (Oxford, England), 53, 9, 1608, 12, Sep. 2014, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • 毛細血管ファントムを用いた超音波装置機器間のパワードプラ信号校正 パンヌス血流評価結果の機種間差低減を目指して
    坂野 稜典, 神島 保, 堀江 達則, 西田 睦
    北海道医学雑誌, 89, 1, 94, 94, 北海道医学会, May 2014
    Japanese
  • 多時相造影MRIのTIC解析を用いた滑膜炎抽出
    小野 雅人, 神島 保, 杉森 博行, 唐 明輝, 河野 通仁, 渥美 達也
    北海道医学雑誌, 89, 1, 93, 93, 北海道医学会, May 2014
    Japanese
  • Ultrasound assessment of synovial pathologic features in rheumatoid arthritis using comprehensive multiplane images of the second metacarpophalangeal joint: identification of the components that are reliable and influential on the global assessment of the whole joint.
    Kei Ikeda, Yohei Seto, Akihiro Narita, Atsushi Kawakami, Yutaka Kawahito, Hiromu Ito, Isao Matsushita, Shigeru Ohno, Keiichiro Nishida, Takeshi Suzuki, Atsushi Kaneko, Michihiro Ogasawara, Jun Fukae, Mihoko Henmi, Takayuki Sumida, Tamotsu Kamishima, Takao Koike
    Arthritis & rheumatology (Hoboken, N.J.), 66, 3, 523, 32, Mar. 2014, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • Lingering fat signals with CHESS in simultaneous imaging of both hands can be improved with rice pads in both 1.5T and 3.0T.
    Susumu Moriya, Yukio Miki, Tamotsu Kamishima, Tosiaki Miyati, Mitsunori Kanagaki, Yukako Matsuno, Tsuneo Yokobayashi
    European journal of radiology, 82, 9, 1458, 62, Sep. 2013, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • CT osteoabsorptiometry法を用いた野球選手肘関節における応力分布解析
    門間太輔, 岩崎倫政, 大泉直美, 中土裕樹, 船越忠直, 神島保, 但野茂, 三浪明男
    北海道整形災害外科学会雑誌, 54, 2, 162, 166, Mar. 2013, [Peer-reviewed]
    Japanese, Scientific journal
  • Positive synovial vascularity in patients with low disease activity indicates smouldering inflammation leading to joint damage in rheumatoid arthritis: time-integrated joint inflammation estimated by synovial vascularity in each finger joint.
    Jun Fukae, Masato Isobe, Akemi Kitano, Mihoko Henmi, Fumihiko Sakamoto, Akihiro Narita, Takeya Ito, Akio Mitsuzaki, Masato Shimizu, Kazuhide Tanimura, Megumi Matsuhashi, Tamotsu Kamishima, Tatsuya Atsumi, Takao Koike
    Rheumatology (Oxford, England), 52, 3, 523, 8, Mar. 2013, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • Effect of low-intensity pulsed ultrasound on bone healing at osteotomy sites after forearm bone shortening.
    Atsushi Urita, Norimasa Iwasaki, Makoto Kondo, Yasuhiko Nishio, Tamotsu Kamishima, Akio Minami
    The Journal of hand surgery, 38, 3, 498, 503, Mar. 2013, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • Association of Renal Volume with the Degree of Aortic Contrast Enhancement in Abdominal CT               
    Muto NS, Kamishima T, Sasaki T, Terae S, Tha KK, Shirato H, Bae KT
    Advances in Computed Tomography, 2, 55, 62, 2013, [Peer-reviewed]
    English, Scientific journal
  • Contrast-enhanced whole body joint MR Imaging in rheumatoid patients on tumour necrosis factor-alpha agents: a pilot study to evaluate novel scoring system for MR synovitis
    T. Kamishima, M. Kato, T. Atsumi, T. Koike, Y. Onodera, S. Terae
    CLINICAL AND EXPERIMENTAL RHEUMATOLOGY, 31, 1, 154, 154, Jan. 2013, [Peer-reviewed]
    English
  • Fat-suppressed MR images of both hands obtained using CHESS can be improved by rice pads.
    Susumu Moriya, Yukio Miki, Tamotsu Kamishima, Mitsunori Kanagaki, Tsuneo Yokobayashi, Mitsunori Ishikawa
    European journal of radiology, 81, 9, 2318, 22, Sep. 2012, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • Long-term stress distribution patterns of the ankle joint in varus knee alignment assessed by computed tomography osteoabsorptiometry.
    Tomohiro Onodera, Tokifumi Majima, Norimasa Iwasaki, Tamotsu Kamishima, Yasuhiko Kasahara, Akio Minami
    International orthopaedics, 36, 9, 1871, 6, Sep. 2012, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • Alterations in stress distribution patterns through the forearm joint surface of the elbow in baseball players assessed using computed tomography osteoabsorptiometry.
    Daisuke Momma, Norimasa Iwasaki, Naomi Oizumi, Kazuhiro Fujisaki, Tadanao Funakoshi, Yuichiro Abe, Tamotsu Kamishima, Shigeru Tadano, Akio Minami
    Journal of orthopaedic science : official journal of the Japanese Orthopaedic Association, 17, 3, 253, 60, May 2012, [Peer-reviewed], [Domestic magazines]
    English, Scientific journal
  • Distribution of bone mineral density at osteochondral donor sites in the patellofemoral joint among baseball players and controls.
    Kinya Nishida, Norimasa Iwasaki, Kazuhiro Fujisaki, Tadanao Funakoshi, Tamotsu Kamishima, Shigeru Tadano, Akio Minami
    The American journal of sports medicine, 40, 4, 909, 14, Apr. 2012, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • A retrospective evaluation of magnetic resonance imaging effectiveness on capitellar osteochondritis dissecans among overhead athletes.
    Norimasa Iwasaki, Tamotsu Kamishima, Hiroyuki Kato, Tadanao Funakoshi, Akio Minami
    The American journal of sports medicine, 40, 3, 624, 30, Mar. 2012, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • Usefulness of portography and contrast-enhanced computed tomography to predict the embolized area in percutaneous transhepatic portal vein embolization with absolute ethanol under temporary balloon occlusion
    Hasegawa Y, Abo D, Sakuhara Y, Kato F, Kamishima T, Shimizu T, Ito YM, Terae S, Shirato H
    Japanese Journal of Radiology, 30, 1, 53, 61, Jan. 2012, [Peer-reviewed], [Domestic magazines]
    English, Scientific journal, PURPOSE: To assess the usefulness of portography and contrast-enhanced computed tomography (CECT) for predicting the embolized area after the first injection of absolute ethanol (AE) in right portal vein embolization (RPVE). MATERIALS AND METHODS: Portograms were retrospectively reviewed in 50 patients (30 men and 20 women, mean age 65 years) who had undergone percutaneous transhepatic RPVE with AE under temporary balloon occlusion (TBO) between February 2002 and October 2009. The enhancement pattern before embolization and the embolization pattern after the first AE injection were analyzed by portography. The angles of portal branches against the horizontal plane were measured in 48 patients using pre-treatment CECT. RESULTS: The enhancement pattern was not consistent with the embolization pattern in 35 patients (p < 0.001). When the anterior branch angles were divided into two groups at -5°, 0°, 10°, and 15°, the frequency of the posterior-branch-dominant embolization pattern was higher in the more negatively angled group (p = 0.002-0.041). CONCLUSION: The distribution of AE is different from that of contrast medium in percutaneous transhepatic RPVE under TBO. The pre-treatment measurement of the angles of portal branches against the horizontal plane on CECT is suggested to be useful for predicting the embolized area.
  • In vivo vascularity alterations in repaired rotator cuffs determined by contrast-enhanced ultrasound.
    Tadanao Funakoshi, Norimasa Iwasaki, Tamotsu Kamishima, Mutsumi Nishida, Yoichi Ito, Kinya Nishida, Makoto Motomiya, Naoki Suenaga, Akio Minami
    The American journal of sports medicine, 39, 12, 2640, 6, Dec. 2011, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • Identification and further differentiation of subendocardial and transmural myocardial infarction by fast strain-encoded (SENC) magnetic resonance imaging at 3.0 Tesla.
    Noriko Oyama-Manabe, Naoki Ishimori, Hiroyuki Sugimori, Marc Van Cauteren, Kohsuke Kudo, Osamu Manabe, Tomoyuki Okuaki, Tamotsu Kamishima, Yoichi M Ito, Hiroyuki Tsutsui, Khin Khin Tha, Satoshi Terae, Hiroki Shirato
    European radiology, 21, 11, 2362, 8, Nov. 2011, [Peer-reviewed], [International Magazine]
    English, Scientific journal, OBJECTIVES: To investigate whether subendocardial and transmural myocardial infarction can be identified and differentiated using the peak circumferential and longitudinal strains measured by fast strain-encoded (SENC). METHODS: Nineteen patients with ischemic heart diseases underwent imaging with fast SENC and late gadolinium enhancement (LGE) MRI at 3 T. Fast SENC measurements were performed in three short-axis slices (basal, mid-ventricular and apical levels) and one long-axis view (four-chamber) to assess peak longitudinal and circumferential systolic strains. RESULTS: All patients showed myocardial infarction with an average of 7 positive LGE segments. A total of 304 segments for longitudinal strains (LS) and 114 segments for circumferential strains (CS) could be analysed. Positive LGE segments showed lower peak CS and LS compared with the no LGE segments (P < 0.0001 for both). Segments with subendocardial infarction showed reduced CS and LS compared with the no LGE segments (P < 0.0001 for both). There was a significant difference in CS between subendocardial and transmural infarct segments (P = 0.03), but no significant difference in LS between them (P = 0.64). CONCLUSIONS: Fast SENC can identify old myocardial infarction and differentiate subendocardial from transmural infarction.
  • Power Doppler signal calibration using capillary phantom for pannus vascularity in rheumatoid finger joint: a pilot study
    T. Kamishima, M. Nishida, T. Horie, A. Narita, A. Sagawa, M. Henmi, H. Shirato, S. Terae
    CLINICAL AND EXPERIMENTAL RHEUMATOLOGY, 29, 6, 1057, 1057, Nov. 2011, [Peer-reviewed]
    English
  • Radiographic prognosis of finger joint damage predicted by early alteration in synovial vascularity in patients with rheumatoid arthritis: Potential utility of power doppler sonography in clinical practice
    Jun Fukae, Masato Isobe, Akemi Kitano, Mihoko Henmi, Fumihiko Sakamoto, Akihiro Narita, Takeya Ito, Akio Mitsuzaki, Masato Shimizu, Kazuhide Tanimura, Megumi Matsuhashi, Tamotsu Kamishima, Tatsuya Atsumi, Takao Koike
    Arthritis Care and Research, 63, 9, 1247, 1253, Sep. 2011, [Peer-reviewed]
    English, Scientific journal
  • Radiographic prognosis of finger joint damage predicted by early alteration in synovial vascularity in patients with rheumatoid arthritis: Potential utility of power doppler sonography in clinical practice.
    Jun Fukae, Masato Isobe, Akemi Kitano, Mihoko Henmi, Fumihiko Sakamoto, Akihiro Narita, Takeya Ito, Akio Mitsuzaki, Masato Shimizu, Kazuhide Tanimura, Megumi Matsuhashi, Tamotsu Kamishima, Tatsuya Atsumi, Takao Koike
    Arthritis care & research, 63, 9, 1247, 53, Sep. 2011, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • 画像診断技術の進歩とその臨床的革新への可能性 造影超音波検査による腱板治癒過程における血行動態の変化
    船越 忠直, 岩崎 倫政, 西田 欽也, 本宮 真, 神島 保, 西田 睦, 末永 直樹, 三浪 明男
    日本整形外科学会雑誌, 85, 8, S1061, S1061, (公社)日本整形外科学会, Aug. 2011
    Japanese
  • Rapid estimation of split renal function in kidney donors using software developed for computed tomographic renal volumetry.
    Fumi Kato, Tamotsu Kamishima, Ken Morita, Natalia S Muto, Syozou Okamoto, Tokuhiko Omatsu, Noriko Oyama, Satoshi Terae, Kakuko Kanegae, Katsuya Nonomura, Hiroki Shirato
    European journal of radiology, 79, 1, 15, 20, Jul. 2011, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • Computed tomography osteoabsorptiometry alterations in stress distribution patterns through the wrist after radial shortening osteotomy for Kienböck disease.
    Hikaru Makabe, Norimasa Iwasaki, Tamotsu Kamishima, Naomi Oizumi, Shigeru Tadano, Akio Minami
    The Journal of hand surgery, 36, 7, 1158, 64, Jul. 2011, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • Monitoring anti-interleukin 6 receptor antibody treatment for rheumatoid arthritis by quantitative magnetic resonance imaging of the hand and power Doppler ultrasonography of the finger.
    Tamotsu Kamishima, Kazuhide Tanimura, Masato Shimizu, Megumi Matsuhashi, Jun Fukae, Yujiro Kon, Hiromi Hagiwara, Akihiro Narita, Yuko Aoki, Naoki Kosaka, Tatsuya Atsumi, Hiroki Shirato, Satoshi Terae
    Skeletal radiology, 40, 6, 745, 55, Jun. 2011, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • Relationship between diseased lung tissues on computed tomography and motion of fiducial marker near lung cancer.
    Yuya Onodera, Noriko Nishioka, Koichi Yasuda, Noriyuki Fujima, Mylin Torres, Tamotsu Kamishima, Noriko Ooyama, Rikiya Onimaru, Satoshi Terae, Satoshi Ooizumi, Masaharu Nishimura, Hiroki Shirato
    International journal of radiation oncology, biology, physics, 79, 5, 1408, 13, 01 Apr. 2011, [Peer-reviewed], [International Magazine]
    English, Scientific journal, PURPOSE: For lung cancer patients with poor pulmonary function because of emphysema or fibrosis, it is important to predict the amplitude of internal tumor motion to minimize the irradiation of the functioning lung tissue before undergoing stereotactic body radiotherapy. METHODS AND MATERIALS: Two board-certified diagnostic radiologists independently assessed the degree of pulmonary emphysema and fibrosis on computed tomography scans in 71 patients with peripheral lung tumors before real-time tumor-tracking radiotherapy. The relationships between the computed tomography findings of the lung parenchyma and the motion of the fiducial marker near the lung tumor were investigated. Of the 71 patients, 30 had normal pulmonary function, and 29 had obstructive pulmonary dysfunction (forced expiratory volume in 1 s/forced vital capacity ratio of <70%), 6 patients had constrictive dysfunction (percentage of vital capacity <80%), and 16 had mixed dysfunction. RESULTS: The upper region was associated with smaller tumor motion, as expected (p = .0004), and the presence of fibrosis (p = .088) and pleural tumor contact (p = .086) were weakly associated with tumor motion. The presence of fibrotic changes in the lung tissue was associated with smaller tumor motion in the upper region (p <.05) but not in the lower region. The findings of emphysema and pulmonary function tests were not associated with tumor motion. CONCLUSION: Tumors in the upper lung region with fibrotic changes have smaller motion than those in the upper region of the lungs without fibrotic changes. The tumor motion in the lower lung region was not significantly different between patients with and without lung fibrosis. Emphysema was not associated with the amplitude of tumor motion.
  • Renal cortical volume measured using automatic contouring software for computed tomography and its relationship with BMI, age and renal function.
    Natalia Sayuri Muto, Tamotsu Kamishima, Ardene A Harris, Fumi Kato, Yuya Onodera, Satoshi Terae, Hiroki Shirato
    European journal of radiology, 78, 1, 151, 6, Apr. 2011, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • RELATIONSHIP BETWEEN DISEASED LUNG TISSUES ON COMPUTED TOMOGRAPHY AND MOTION OF FIDUCIAL MARKER NEAR LUNG CANCER
    Yuya Onodera, Noriko Nishoka, Koichi Yasuda, Noriyuki Fujima, Mylin Torres, Tamotsu Kamishima, Noriko Ooyama, Rikiya Onimaru, Satoshi Terae, Satoshi Ooizumi, Masaharu Nishimura, Hiroki Shirato
    INTERNATIONAL JOURNAL OF RADIATION ONCOLOGY BIOLOGY PHYSICS, 79, 5, 1408, 1413, Apr. 2011, [Peer-reviewed]
    English, Scientific journal
  • 肩腱板断裂治癒過程における血行動態 新規造影剤を用いた超音波検査               
    船越 忠直, 岩崎 倫政, 西田 睦, 神島 保, 三浪 明男
    北海道整形災害外科学会雑誌, 52, 2, 357, 358, 北海道整形災害外科学会, Mar. 2011
    Japanese
  • 造影超音波検査による肩腱板断裂治癒過程における血行動態の変化
    船越 忠直, 岩崎 倫政, 神島 保, 西田 睦, 西田 欽也, 本宮 真, 河村 大介, 松本 大, 永野 裕介, 三浪 明男, 末永 直樹
    日本整形外科学会雑誌, 85, 3, S347, S347, (公社)日本整形外科学会, Mar. 2011
    Japanese
  • Long-term stress distribution patterns across the elbow joint in baseball players assessed by computed tomography osteoabsorptiometry.
    Daisuke Momma, Norimasa Iwasaki, Naomi Oizumi, Hiroki Nakatsuchi, Tadanao Funakoshi, Tamotsu Kamishima, Shigeru Tadano, Akio Minami
    The American journal of sports medicine, 39, 2, 336, 41, Feb. 2011, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • The incidence and mechanism of sunitinib-induced thyroid atrophy in patients with metastatic renal cell carcinoma
    N. Shinohara, M. Takahashi, T. Kamishima, H. Ikushima, N. Otsuka, A. Ishizu, C. Shimizu, H. Kanayama, K. Nonomura
    BRITISH JOURNAL OF CANCER, 104, 2, 241, 247, Jan. 2011, [Peer-reviewed]
    English, Scientific journal
  • Simplified approach to MR image quantification of the rheumatoid wrist: a pilot study.
    Tamotsu Kamishima, Kazuhide Tanimura, Yuko Aoki, Naoki Kosaka, Masato Shimizu, Megumi Matsuhashi, Jun Fukae, Yujiro Kon, Satoshi Terae, Hiroki Shirato
    Skeletal radiology, 40, 1, 65, 74, Jan. 2011, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • In vivo visualization of vascular patterns of rotator cuff tears using contrast-enhanced ultrasound.
    Tadanao Funakoshi, Norimasa Iwasaki, Tamotsu Kamishima, Mutsumi Nishida, Yoichi Ito, Makoto Kondo, Akio Minami
    The American journal of sports medicine, 38, 12, 2464, 71, Dec. 2010, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • Transplantation of tissue-engineered cartilage for the treatment of osteochondritis dissecans in the elbow: outcomes over a four-year follow-up in two patients.
    Norimasa Iwasaki, Shintarou Yamane, Kinya Nishida, Tatsuya Masuko, Tadanao Funakoshi, Tamotsu Kamishima, Akio Minami
    Journal of shoulder and elbow surgery, 19, 8, e1-6, E6, Dec. 2010, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • Contrast-enhanced whole-body joint MRI in patients with unclassified arthritis who develop early rheumatoid arthritis within 2 years: feasibility study and correlation with MRI findings of the hands.
    Tamotsu Kamishima, Yuichiro Fujieda, Tatsuya Atsumi, Rie Mimura, Takao Koike, Satoshi Terae, Hiroki Shirato
    AJR. American journal of roentgenology, 195, 4, W287-92, W292, Oct. 2010, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • 肩腱板断裂に対する新規造影剤を用いた超音波検査の有用性               
    船越 忠直, 神島 保, 西田 睦, 近藤 真, 岩崎 倫政, 三浪 明男
    北海道整形災害外科学会雑誌, 52, 1, 134, 135, 北海道整形災害外科学会, Aug. 2010
    Japanese
  • 肩腱板断裂治癒過程における血行動態 新規造影剤を用いた超音波検査
    船越 忠直, 岩崎 倫政, 西田 欽也, 本宮 真, 神島 保, 西田 睦, 末永 直樹, 三浪 明男
    日本整形外科学会雑誌, 84, 8, S1191, S1191, (公社)日本整形外科学会, Aug. 2010
    Japanese
  • Splenic volume measurements on computed tomography utilizing automatically contouring software and its relationship with age, gender, and anthropometric parameters.
    Ardene Harris, Tamotsu Kamishima, Hong Yi Hao, Fumi Kato, Tokuhiko Omatsu, Yuya Onodera, Satoshi Terae, Hiroki Shirato
    European journal of radiology, 75, 1, e97-101, E101, Jul. 2010, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • Change of synovial vascularity in a single finger joint assessed by power doppler sonography correlated with radiographic change in rheumatoid arthritis: Comparative study of a novel quantitative score with a semiquantitative score
    Jun Fukae, Yujiro Kon, Mihoko Henmi, Fumihiko Sakamoto, Akihiro Narita, Masato Shimizu, Kazuhide Tanimura, Megumi Matsuhashi, Tamotsu Kamishima, Tatsuya Atsumi, Takao Koike
    Arthritis Care and Research, 62, 5, 657, 663, May 2010, [Peer-reviewed]
    English, Scientific journal
  • Extramedullary plasmacytoma involving perirenal space accompanied by extramedullary hematopoiesis and amyloid deposition
    Rie Mimura, Tamotsu Kamishima, Kanako C. Kubota, Fumihito Nakano, Ichiro Yabe, Hidenao Sasaki, Satoru Maruyama, Nobuo Shinohara, Ardene A. Harris, Hironori Haga, Hiroki Shirato, Satoshi Terae
    JAPANESE JOURNAL OF RADIOLOGY, 28, 4, 309, 313, May 2010, [Peer-reviewed]
    English, Scientific journal
  • Semi-quantitative analysis of rheumatoid finger joint synovitis using power Doppler ultrasonography: when to perform follow-up study after treatment consisting mainly of antitumor necrosis factor alpha agent.
    Tamotsu Kamishima, Akira Sagawa, Kazuhide Tanimura, Masato Shimizu, Megumi Matsuhashi, Masahide Shinohara, Hiromi Hagiwara, Mihoko Henmi, Akihiro Narita, Satoshi Terae, Hiroki Shirato
    Skeletal radiology, 39, 5, 457, 65, May 2010, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • Change of synovial vascularity in a single finger joint assessed by power doppler sonography correlated with radiographic change in rheumatoid arthritis: comparative study of a novel quantitative score with a semiquantitative score.
    Jun Fukae, Yujiro Kon, Mihoko Henmi, Fumihiko Sakamoto, Akihiro Narita, Masato Shimizu, Kazuhide Tanimura, Megumi Matsuhashi, Tamotsu Kamishima, Tatsuya Atsumi, Takao Koike
    Arthritis care & research, 62, 5, 657, 63, May 2010, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • Extramedullary plasmacytoma involving perirenal space accompanied by extramedullary hematopoiesis and amyloid deposition.
    Rie Mimura, Tamotsu Kamishima, Kanako C Kubota, Fumihito Nakano, Ichiro Yabe, Hidenao Sasaki, Satoru Maruyama, Nobuo Shinohara, Ardene A Harris, Hironori Haga, Hiroki Shirato, Satoshi Terae
    Japanese journal of radiology, 28, 4, 309, 13, May 2010, [Peer-reviewed], [Domestic magazines]
    English, Scientific journal
  • 造影超音波を用いた断裂および非断裂棘上筋の血行動態
    船越 忠直, 岩崎 倫政, 三浪 明男, 神島 保, 西田 睦, 近藤 真
    日本整形外科学会雑誌, 84, 3, S68, S68, (公社)日本整形外科学会, Mar. 2010
    Japanese
  • 造影超音波による関節リウマチの活動性評価               
    神島 保, 西田 睦, 渥美 達也
    IVR: Interventional Radiology, 25, 1, 109, 109, (一社)日本インターベンショナルラジオロジー学会, Jan. 2010
    Japanese
  • Sequential alterations in magnetic resonance imaging findings after autologous osteochondral mosaicplasty for young athletes with osteochondritis dissecans of the humeral capitellum.
    Norimasa Iwasaki, Hiroyuki Kato, Tamotsu Kamishima, Akio Minami
    The American journal of sports medicine, 37, 12, 2349, 54, Dec. 2009, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • Intravenous pyogenic granuloma of the finger.
    Tamotsu Kamishima, Akiko Hasegawa, Kanako C Kubota, Naomi Oizumi, Norimasa Iwasaki, Akio Minami, Satoru Sasaki, Yuhei Yamamoto, Tokuhiko Omatsu, Yuya Onodera, Satoshi Terae, Hiroki Shirato
    Japanese journal of radiology, 27, 8, 328, 32, Oct. 2009, [Peer-reviewed], [Domestic magazines]
    English, Scientific journal
  • Alveolar hydatid disease of the adrenal gland: computed tomography and magnetic resonance imaging findings
    Tamotsu Kamishima, Toru Harabayashi, Syuhei Ishikawa, Kanako C. Kubota, Katsuya Nonomura, Tokuhiko Omatsu, Yuya Onodera, Hiroki Shirato, Satoshi Terae
    JAPANESE JOURNAL OF RADIOLOGY, 27, 5, 225, 228, Jun. 2009, [Peer-reviewed]
    English, Scientific journal
  • Alveolar hydatid disease of the adrenal gland: computed tomography and magnetic resonance imaging findings.
    Tamotsu Kamishima, Toru Harabayashi, Syuhei Ishikawa, Kanako C Kubota, Katsuya Nonomura, Tokuhiko Omatsu, Yuya Onodera, Hiroki Shirato, Satoshi Terae
    Japanese journal of radiology, 27, 5, 225, 8, Jun. 2009, [Peer-reviewed], [Domestic magazines]
    English, Scientific journal
  • Power Doppler ultrasound of rheumatoid synovitis: quantification of vascular signal and analysis of interobserver variability.
    Tamotsu Kamishima, Kazuhide Tanimura, Mihoko Henmi, Akihiro Narita, Fumihiko Sakamoto, Satoshi Terae, Hiroki Shirato
    Skeletal radiology, 38, 5, 467, 72, May 2009, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • Synovial chondromatosis originating from the synovium of the anterior cruciate ligament: a case report.
    Tokifumi Majima, Tamotsu Kamishima, Kouichi Susuda
    Sports medicine, arthroscopy, rehabilitation, therapy & technology : SMARTT, 1, 1, 6, 6, Springer Science and Business Media LLC, 23 Apr. 2009, [Peer-reviewed], [International Magazine]
    English, Scientific journal, A case of synovial chondromatosis originating from the synovium of the anterior cruciate ligament (ACL) resulting in a mechanical block to knee extension is reported. A 36-year-old man complained of a restricted range of left-knee motion and pain when walking. Plain roentgenograms showed normal appearance, however, magnetic resonance imaging showed intensity changes in the ACL. Arthroscopically, numerous small free bodies were observed. Proliferation of synovium and cartilaginous tissues were identified around the ACL. There were no significant findings in the synovium except around the ACL. The synovium around the ACL was resected and free bodies were washed out. This is the first report of synovial chondromatosis originating from the synovium of the ACL.
  • RA患者における手関節造影MRIを用いた炎症性滑膜定量による生物学的製剤の効果判定               
    神島 保, 堀田 哲也, 大友 耕太郎, 藤枝 雄一郎, 片岡 浩, 保田 晋助, 加藤 将, 渥美 達也, 小池 隆夫
    日本リウマチ学会総会・学術集会・国際リウマチシンポジウムプログラム・抄録集, 53回・18回, 397, 397, (一社)日本リウマチ学会, Mar. 2009
    Japanese
  • Screening for rheumatoid arthritis with finger joint power Doppler ultrasonography: quantification of conventional power Doppler ultrasonographic scoring.
    Jun Fukae, Masato Shimizu, Yujiro Kon, Kazuhide Tanimura, Megumi Matsuhashi, Tamotsu Kamishima, Takao Koike
    Modern rheumatology, 19, 5, 502, 6, 2009, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • CT/MRIにて確定診断に至らなかった結節に対する造影超音波(CEUS)の位置づけ               
    西田 睦, 増田 香織, 佐藤 恵美, 溝口 恵美, 小野寺 祐也, 尾松 徳彦, 神島 保, 加藤 扶美, 加賀 早苗, 井上 真美子, 横山 しのぶ, 鈴木 春樹, 清水 力, 松野 一彦, 玉木 長良, 白土 博樹
    超音波医学, 35, 4, 463, 463, (公社)日本超音波医学会, Jul. 2008
    Japanese
  • 全身造影MRIによる関節リウマチの画像診断               
    神島 保, 白土 博樹, 保田 晋介, 堀田 哲也, 渥美 達也, 小池 隆夫
    Radiation Medicine, 26, Suppl.I, 11, 11, (公社)日本医学放射線学会, Apr. 2008
    Japanese
  • Donor site evaluation after autologous osteochondral mosaicplasty for cartilaginous lesions of the elbow joint.
    Norimasa Iwasaki, Hiroyuki Kato, Tamotsu Kamishima, Naoki Suenaga, Akio Minami
    The American journal of sports medicine, 35, 12, 2096, 100, Dec. 2007, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • 関節リウマチの画像診断 非造影関節エコーによる関節リウマチの関節炎評価               
    櫻井 典之, 深江 淳, 渥美 達也, 酒井 良江, 堀田 哲也, 保田 晋助, 神島 保, 小池 隆夫
    日本リウマチ学会総会・学術集会・国際リウマチシンポジウムプログラム・抄録集, 50回・15回, 132, 132, (一社)日本リウマチ学会, Mar. 2006
    Japanese
  • Chemical shift MR images of the parotid gland in Sjögren's syndrome utilizing low-field MR system comparison with MR sialography and salivary secretion function.
    Tamotsu Kamishima
    Radiation medicine, 23, 4, 277, 82, Jun. 2005, [Peer-reviewed], [Domestic magazines]
    English, Scientific journal
  • Detection of amiodarone-induced pulmonary toxicity in supine and prone positions: high-resolution computed tomography study.
    Noriko Oyama, Naotsugu Oyama, Hisashi Yokoshiki, Tamotsu Kamishima, Toshikazu Nambu, Hiroyuki Tsutsui, Kazuo Miyasaka
    Circulation journal : official journal of the Japanese Circulation Society, 69, 4, 466, 70, Apr. 2005, [Peer-reviewed], [Domestic magazines]
    English, Scientific journal
  • MDCT scan visualizes the Adamkiewicz artery.
    Ryushi Maruyama, Tamotsu Kamishima, Norihiko Shiiya, Takeshi Asano, Kenji Matsuzaki, Kazuo Miyasaka, Keishu Yasuda
    The Annals of thoracic surgery, 76, 4, 1308, 1308, Oct. 2003, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • Acute posterior interosseous nerve palsy caused by septic arthritis of the elbow: a case report.
    Hiroyuki Kato, Norimasa Iwasaki, Akio Minami, Tamotsu Kamishima
    The Journal of hand surgery, 28, 1, 44, 7, Jan. 2003, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • Cirrhosis: modified caudate-right lobe ratio.
    Hitomi Awaya, Donald G Mitchell, Tamotsu Kamishima, George Holland, Katsuyoshi Ito, Tsuneo Matsumoto
    Radiology, 224, 3, 769, 74, Sep. 2002, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • Small (<20 mm) enhancing hepatic nodules seen on arterial phase MR imaging of the cirrhotic liver: clinical implications.
    Yong Yeon Jeong, Donald G Mitchell, Tamotsu Kamishima
    AJR. American journal of roentgenology, 178, 6, 1327, 34, Jun. 2002, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • Spontaneous rupture of hepatocellular carcinoma supplied by the right renal capsular artery treated by transcatheter arterial embolization
    Y Kodama, T Shimizu, H Endo, S Hige, T Kamishima, GA Holland, N Miyamoto, K Miyasaka
    CARDIOVASCULAR AND INTERVENTIONAL RADIOLOGY, 25, 2, 137, 140, Mar. 2002, [Peer-reviewed]
    English, Scientific journal
  • Elbow synovial fold syndrome: MR imaging findings
    H Awaya, ME Schweitzer, SA Feng, T Kamishima, PJ Marone, S Farooki, DJ Trudell, P Haghighi, DL Resnick
    AMERICAN JOURNAL OF ROENTGENOLOGY, 177, 6, 1377, 1381, Dec. 2001, [Peer-reviewed]
    English, Scientific journal
  • Rapid MR imaging detection of renal cysts: Age-based standards
    AB Nascimento, DG Mitchell, XM Zhang, T Kamishima, L Parker, GA Holland
    RADIOLOGY, 221, 3, 628, 632, Dec. 2001, [Peer-reviewed]
    English, Scientific journal
  • Utilization of "used" vials: Cost-effective technique for MR arthrography
    T Kamishima, ME Schweitzer, H Awaya, D Abraham
    JOURNAL OF MAGNETIC RESONANCE IMAGING, 12, 6, 953, 955, Dec. 2000, [Peer-reviewed]
    English, Scientific journal
  • MR imaging of bilateral renal malacoplakia after liver transplantation
    T Kamishima, K Ito, H Awaya, DG Mitchell
    AMERICAN JOURNAL OF ROENTGENOLOGY, 175, 3, 919, 920, Sep. 2000, [Peer-reviewed]
    English, Scientific journal
  • 生体部分肝移植におけるVascular IVRの経験               
    作原 祐介, 児玉 芳尚, 立石 宇貴秀, 神島 保, 清水 匡, 宮坂 和男
    日本医学放射線学会雑誌, 60, 3, 113, 113, (公社)日本医学放射線学会, Feb. 2000
    Japanese
  • 自己免疫性肝硬変に合併した多発AVFの治療経験               
    立石 宇貴秀, 作原 祐介, 児玉 芳尚, 神島 保, 清水 匡, 宮坂 和男
    日本医学放射線学会雑誌, 60, 3, 113, 113, (公社)日本医学放射線学会, Feb. 2000
    Japanese

Other Activities and Achievements

Books and other publications

Research Themes

  • 関節リウマチ破壊性変化定量解析システムの妥当性評価
    科学研究費助成事業
    01 Apr. 2021 - 31 Mar. 2024
    神島 保, 池田 啓, 渥美 達也, 池辺 将之, 田村 賢一
    Genant-modified Sharpスコア(GSS)などの、関節リウマチ(RA)における関節腔狭小化(JSN)のX線スコアリング法は広く受け入れられているが、評価が主観的で煩雑である。そのため、関節裂隙幅(JSW)の変化を自動的に定量化できる部分位相限定相関(PIPOC)を備えたソフトウェアを開発した。本研究の目的は、ソフトウェアを用いてトシリズマブ治療下の関節リウマチ患者のJSN進行を検討することである。
    トシリズマブで治療された39名のRA患者(女性35名)を対象とした。中手指節関節および近位指節間関節のX線学的進行は、0ヶ月および12ヶ月のGSSに従って評価された。
    被験者の均質性を確保するために、ソフトウェア分析のベースラインでGSS = 0の関節をターゲットにした。 JSN進行測定用の社内ソフトウェアの成功率は96.8%(449/464)であった。ソフトウェアで1年間に定量化された手指関節のJSW変化は、GSS進行陽性群の方が陰性群よりも有意に大きかった(p = 0.02)。
    PIPOC依存ソフトウェアは、1年間のトシリズマブ治療下の追跡期間中にRA患者のJSN進行を検出できる可能性がある。
    日本学術振興会, 基盤研究(C), 北海道大学, 21K07611
  • Power Doppler signal calibration between ultrasound machines by use of a capillary-flow phantom for pannus vascularity in rheumatoid finger joints
    Grants-in-Aid for Scientific Research
    01 Apr. 2012 - 31 Mar. 2015
    KAMISHIMA Tamotsu, ATSUMI Tatsuya, TERAE Satoshi, NISHIDA Mutsumi
    Ultrasound allows the detection and grading of inflammation in rheumatology. Despite these advantages of ultrasound in the management of rheumatoid patients, it is well known that there are significant machine-to-machine disagreements regarding signal quantification. In this study, we tried to calibrate the power Doppler (PD) signal of two models of ultrasound machines by using a capillary-flow phantom. In Aplio 500 and Avius, we found negative correlations between the PRF and the QPD index when the flow velocity was constant, and a positive correlation between flow velocity and the QPD index at constant PRF. The equation for the relationship of the PRF between Aplio 500 and Avius was: y = 0.023x + 0.36 [y = PRF of Avius (kHz), x = PRF of Aplio 500 (kHz)]. Our results suggested that the signal calibration of various models of ultrasound machines is possible by adjustment of the PRF setting.
    Japan Society for the Promotion of Science, Grant-in-Aid for Scientific Research (C), Hokkaido University, 24591437
  • Basic Research for four-dimensional stereotactic radiotherapy
    Grants-in-Aid for Scientific Research
    2005 - 2009
    SHIRATO Hiroki, KANEKO Junichi, NISHIYAMA Syusuke, KATOH Chietsugu, AOYAMA Hidefumi, SEKI Koh-ichi, ONIMARU Rikiya, NISHIOKA Takeshi, MORITA Koichi, DATE Hiroyuki, TAKADA Eiji, TOMIOKA Satoshi, KUDO Kohsude, ONODERA Yuya, KAMISHIMA Tamotsu, ONIMARU Rikiya, SHIMIZU Shinichi, SAKUHARA Yusuke, OYAMA Noriko, ABO Daisuke, TAGUCHI Hiroshi
    We developed a four-dimensional (4-D, space and time) focal positron emission localizer, FPEL, using two sets of BGO scintillators, photo-electric multiplier, and collimators. A narrow (5-mm in diameter) 45-MeV electron beam was controlled to irradiate a target with an accuracy of 0.1mm in 4D coordinates automatically if the amount of positron emitters at the target exceeds the threshold. A mouse model was established to irradiate the tumor in which FDG is accumulated. Using the FPEL, 45-MeV electron beam hit the tumor in mice which move in front of the beam exit with the amplitude resembling human respiration. Tumor without fiducial gold marker disappeared within a week after the irradiation. Basis for 4D stereotacic radiotherapy was established successfully.
    Japan Society for the Promotion of Science, Grant-in-Aid for Scientific Research on Priority Areas, Hokkaido University, 17016002
  • Interactive Radiotherapy
    Grants-in-Aid for Scientific Research
    2006 - 2008
    SHIRATO Hiroki, HONMA Sato, TAMAKI Nagara, KUGE Yuji, DATE Hiroyuki, KIYANAGI Yoshiaki, HATAKEYAMA Masanori, KANEKO Junichi, MIZUTA Masahiro, INUBUSHI Masayuki, TADANO Shigeru, TAMURA Mamoru, HAYAKAWA Kazushige, MATSUNAGA Naofumi, ISHIKAWA Masayori, AOYAMA Hidefumi, SAKUHARA Yusuke, ONIMARU Rikiya, ABO Daisuke, OITA Masataka, KAMISHIMA Tamotsu, TERAE Satoshi, KUDO Kohsuke, ONODERA Yuya, OMATSU Tokuhiko, SHIMIZU Shinichi, NISHIMURA Takashi, SUZUKI Ryusuke, GERARD Bengua
    いままでの先端放射線医療に欠けていた医療機器と患者のinteractionを取り入れた放射線治療を可能にする。臓器の動き・腫瘍の照射による縮小・免疫反応などは、線量と時間に関して非線形であり、システムとしての癌・臓器の反応という概念を加えることが必要であることが示唆された。生体の相互作用を追求していく過程で、動体追跡技術は先端医療のみならず、基礎生命科学でも重要な役割を果たすことがわかった。
    Japan Society for the Promotion of Science, Grant-in-Aid for Scientific Research (A), Hokkaido University, 18209039