Yamada, Yoshitake

写真a

Affiliation

School of Medicine, Department of Radiology (Diagnostic Radiology) ( Shinanomachi )

Position

Associate Professor

External Links

Profile 【 Display / hide

  • Sep 2005-present: Board Certified Membership of the Japanese Society of Internal Medicine
    Sep 2010-present: Board Certified Diagnostic Radiologist of the Japan Radiological Society
    Aug 2013-present: Specialist in Positron Emission Tomography in the Japanese Board of Nuclear Medicine
    July 2015-present: Specialist in the Japanese Board of Nuclear Medicine
    October 2018-present: Board Certified Senior Fellow of the Japan Society of Ultrasonics in Medicine

Career 【 Display / hide

  • 2017.01
    -
    Present

    Department of Radiology, Keio University School of Medicine

  • 2016.01
    -
    2016.12

    Harvard Medical School, Brigham and Women’s Hospital , Radiology

  • 2010.04
    -
    2015.12

    Department of Radiology, Keio University School of Medicine

  • 2008.04
    -
    2010.03

    Department of Radiology, Nippon Koukan Hosptal

  • 2006.04
    -
    2008.03

    Department of Radiology, Keio University School of Medicine

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Academic Background 【 Display / hide

  • 1996.04
    -
    2002.03

    Keio University, School of Medicine

    University, Graduated

  • 2010.04
    -
    2013.03

    Keio University, 医学研究科

    Graduate School, Graduated, Doctoral course

Academic Degrees 【 Display / hide

  • 博士(医学), Keio University, Coursework, 2013.03

Licenses and Qualifications 【 Display / hide

  • Board certified diagnostic radiologist of the Japan Radiological Society, 2010.09

  • Specialist in the Japanese Board of Nuclear Medicine, 2015.07

  • Specialist in Positron Emission Tomography in the Japanese Board of Nuclear Medicine, 2013.08

  • Board Certified Fellow of the Japan Society of Ultrasonics in Medicine, 2018.10

  • 日本乳がん検診精度管理中央機構 検診マンモグラフィ読影認定医(指導医認定 AS), 2008.10

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Research Areas 【 Display / hide

  • Life Science / Radiological sciences

Research Keywords 【 Display / hide

  • Diagnostic Radiology

  • CT

  • Chest imaging

  • Cardiovascular imaging

  • Abdominal imaging

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Research Themes 【 Display / hide

  • Multidetector computed tomography, 

    2010.04
    -
    Present

  • Chest imaging, 

    2010.04
    -
    Present

  • Cardiovascular imaging, 

    2010.04
    -
    Present

  • Abdominal imaging, 

    2010.04
    -
    Present

  • Dual-energy CT, 

    2010.04
    -
    Present

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Books 【 Display / hide

  • ここから始める循環器疾患のCT・MRI

    Yoshitake YAMADA, 学研メディカル秀潤社, 2020.04

    Scope: fractional flow reserve computed from CT (FFRCT),  Contact page: p.102-103

  • 救急疾患の鑑別診断のポイント

    Yasuhiro Minami, Yoshitake Yamada, Hiroaki Sugiura, Masahiro Jinzaki, 学研メディカル秀潤社, 2019.09

    Scope: 肺野空洞性病変の鑑別,  Contact page: p.204-209

  • 救急疾患の鑑別診断のポイント

    Hiroaki Sugiura, Yasuhiro Minami, Yoshitake Yamada, Masahiro Jinzaki, 学研メディカル秀潤社, 2019.09

    Scope: 肺間質影の鑑別,  Contact page: p.210-215

  • Abdominal CT

    Yoshitake YAMADA, メディカルサイエンスインターナショナル, 2017.04

    Scope: XII. 腹部大動脈・下大静脈,  Contact page: p591-612

  • Abdominal CT

    Yoshitake YAMADA, メディカルサイエンスインターナショナル, 2017.04

    Scope: II.検査法,  Contact page: p37-44

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Papers 【 Display / hide

  • Imaging Spectrum of Childhood Interstitial Lung Diseases: Focus on Disorders Not Specific to Infancy.

    Ikeda O, Tsujioka Y, Nishimura G, Yamada Y, Sugiura H, Nishi E, Shimizu K, Kono T, Jinzaki M

    Radiographics : a review publication of the Radiological Society of North America, Inc 46 ( 7 ) e250049 2026.07

    ISSN  0271-5333

  • Effect of body position on cerebral perfusion: a comparison of supine and seated positions assessed using conventional and upright CT perfusion.

    Mizutani K, Yamada Y, Yamada M, Yokoyama Y, Kosugi K, Yoshida K, Takahashi S, Akiyama T, Toda M, Jinzaki M

    European radiology experimental 10 ( 1 )  2026.06

  • Pediatric Rheumatic Disorders Revisited: Integrating Imaging and Pathophysiologic Insights across the Autoinflammatory-Autoimmune Continuum.

    Tsujioka Y, Handa A, Nishimura G, Takeshita M, Yamada Y, Nishi E, Kono T, Jinzaki M

    Radiographics : a review publication of the Radiological Society of North America, Inc 46 ( 6 ) e250120 2026.06

    ISSN  0271-5333

     View Summary

    Recent advances in immunologic and molecular research on rheumatic diseases have significantly improved understanding of the diverse group of immune-mediated disorders. Rheumatic diseases were traditionally considered autoimmune diseases, caused by impaired adaptive immunity and often associated with pathogenic autoantibodies. However, in the late 20th century, certain genetic rheumatic diseases-such as tumor necrosis factor receptor-associated periodic syndrome (TRAPS) and familial Mediterranean fever (FMF)-were found to result from antigen-independent activation of innate immune cells and the subsequent cytokine-mediated inflammation. This discovery introduced the new concept of autoinflammatory diseases, characterized by dysregulation of innate immunity. Although autoimmune and autoinflammatory diseases were initially regarded as distinct categories, substantial overlap has become evident. For instance, autoantibodies can be detected in disorders primarily affecting innate immunity, while recent cytokine-targeting therapies have proven effective for classic autoimmune diseases, such as systemic lupus erythematosus (SLE) and dermatomyositis. These insights led to the concept of an autoinflammatory-autoimmune continuum, highlighting that dysregulation of the interaction between innate and adaptive immune systems contributes to the clinical symptoms of rheumatic diseases. The authors explore clinical, imaging, pathophysiologic, and therapeutic aspects of pediatric rheumatic diseases through the lens of this continuum, providing a comprehensive overview of current diagnostic and treatment strategies. © RSNA, 2026 Supplemental material is available for this article.

  • Estimation of Lung Volume Superimposed on the Mediastinum and Diaphragm on Chest Radiographs Using Upright Multidetector Row CT.

    Yoshitake Yamada, Minoru Yamada, Shotaro Chubachi, Yoichi Yokoyama, Keita Nakatsuka, Naoki Hiraishi, Takayuki Abe, Koichi Fukunaga, Masahiro Jinzaki

    Radiology. Cardiothoracic imaging 8 ( 3 ) e250520 2026.06

    Lead author, Corresponding author, Accepted

     View Summary

    Purpose To quantify lung and lobar volumes superimposed on the mediastinum and diaphragm on upright chest radiographs using upright multidetector row CT and to compare them with supine measurements. Materials and Methods In this prospective study, asymptomatic Asian participants underwent both upright and supine multidetector row CT within 2 hours. Lung and lobar volumes were measured in each position. Ray-sum images were reconstructed to delineate mediastinal and diaphragmatic boundaries, and superimposed volumes in the posteroanterior direction were calculated. These CT-derived volumes were considered to approximate lung fields projected over the mediastinum and diaphragm on radiographs. Percentages of superimposed volumes relative to total lung and lobar volumes were determined. Mixed-effects models and multiple linear regression analyses were used. Results The study included 132 participants (mean age ± SD, 47.4 years ± 11.4; 85 female; mean body mass index ± SD, 22.2 ± 3.4 [calculated by dividing weight in kilograms by height in meters squared]). The proportion of lung volume superimposed on the mediastinum and diaphragm was 23.9% ± 3.1 in the upright position, significantly lower than 25.7% ± 3.3 in the supine position (P < .001), despite a 9.8% increase in total lung volume upright. Superimposed percentages of the right upper, middle, and lower lobes and the left upper and lower lobes in the upright position were 10.4% ± 2.5, 7.5% ± 3.2, 28.8% ± 7.9, 12.3% ± 1.9, and 46.0% ± 8.3, respectively. All lobes except the left lower lobe showed significantly lower superimposition upright than supine (all P < .03). Multiple linear regression identified older age, higher body mass index, and male sex as independent predictors of greater superimposition in the upright position (all P < .03). Conclusion Lung volume superimposed on the mediastinum and diaphragm was lower on upright than supine chest radiographs despite greater lung volume in the upright position. University Hospital Medical Information Network Clinical Trials Registry: UMIN000026586 Keywords: CT, Thorax, Lung, Mediastinum, Diaphragm, Anatomy, Comparative Studies, Technology Assessment Supplemental material is available for this article. © The Author(s) 2026. Published by the Radiological Society of North America under a CC BY 4.0 license.

  • Application of upright multidetector CT in orthopedics and the musculoskeletal system: insights into anatomy, alignment, and biomechanics

    Yoshitake Yamada, Minoru Yamada, Yoichi Yokoyama, Kazuya Kaneda, Yuki Yoshida, Ryo Sasaki, Hiroyuki Seki, Ryo Mizukoshi, Fumiko Yagi, Noboru Matsumura, Taiki Nozaki, Takeo Nagura, Masaya Nakamura, Masahiro Jinzaki

    Japanese Journal of Radiology  2026.04

    Lead author, Corresponding author, Accepted,  ISSN  1867-1071

     View Summary

    Upright multidetector CT (MDCT) enables whole-body, high-resolution, three-dimensional cross-sectional imaging in standing or sitting positions, providing detailed visualization of anatomy and biomechanics in physiologically relevant, load-bearing postures. This system maintains high spatial resolution and quantitative performance, including stable noise characteristics and consistent CT attenuation values, while improving workflow efficiency compared with conventional supine MDCT. In the shoulder and upper extremity, upright MDCT has clarified gravity-dependent alignment changes and enabled dynamic four-dimensional assessment of sternoclavicular and acromioclavicular joint motion. In the spine, it provides reproducible spinopelvic measurements, reveals posture-dependent narrowing of intervertebral foramina, and characterizes age- and sex-related differences in segmental spinal mobility. Upright MDCT of the knee allows precise evaluation of joint-line orientation, mechanical-axis migration, and rotational kinematics under weight-bearing conditions, enhancing diagnostic accuracy and preoperative planning in osteoarthritis. In the lower extremities, it captures kinetic-chain mechanics from the foot to the hip, integrating ground-reaction-force data to analyze load distribution and compensatory motion across adjacent joints. Upright MDCT also visualizes thoracic cage deformation and vertebral displacement in conditions such as pectus excavatum, demonstrating load-related changes that supine imaging may overlook. This review provides a state-of-the-art overview of upright MDCT applications in orthopedic imaging and highlights its potential to transform diagnostic strategies and deepen understanding of musculoskeletal pathophysiology under physiologically relevant weight-bearing conditions. Collectively, these studies demonstrate that upright MDCT is a quantitatively robust modality that offers new insights into functional anatomy, disease mechanisms, and biomechanical adaptation. By bridging diagnostic imaging with functional assessment, upright MDCT has the potential to refine understanding of musculoskeletal pathophysiology and to guide more personalized therapeutic strategies in orthopedic and related fields.

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Reviews, Commentaries, etc. 【 Display / hide

  • 肺非結核性抗酸菌(NTM)症の立位/臥位胸部CTを用いた肺体積の定量評価

    加治 正憲, 朝倉 崇徳, 田中 拓, 飯塚 紳, 小澤 拓矢, 福永 直輝, 長尾 元太, 阿瀬川 周平, 中川原 賢亮, 南宮 湖, 鎌田 浩史, 山田 祥岳, 長谷川 直樹

    結核 ((一社)日本結核・非結核性抗酸菌症学会)  100 ( 3 ) 163 - 163 2025.05

    ISSN  0022-9776

  • 本邦COVID-19患者CTを用いた肺炎半定量化の有用性評価

    田中 拓, 中鉢 正太郎, 南宮 湖, 前谷 知毅, 白石 祐介, 朝倉 崇徳, 島田 嵩, 阿瀬川 周平, 大竹 史朗, 中川原 賢亮, 福島 貴大, 渡瀬 麻友子, 山田 祥岳, 田辺 直也, 福永 興壱

    日本呼吸器学会誌 ((一社)日本呼吸器学会)  14 ( 増刊 ) 195 - 195 2025.03

    ISSN  2186-5876

  • 循環器CT最前線(Evaluation of Postural Changes in the Venous System Using Upright CT)

    山田 祥岳, 山田 稔, 横山 陽一, 中原 健裕, 陣崎 雅弘

    日本循環器学会学術集会抄録集 ((一社)日本循環器学会)  89回   SY27 - 4 2025.03

  • 立位CT・床反力計同時計測による下肢荷重線の検討 内外側wedgeの影響

    関 広幸, 荻原 直道, 伊藤 滉真, 筋野 朝陽, 山田 祥岳, 横山 陽一, 中村 雅也, 陣崎 雅弘, 名倉 武雄

    日本整形外科学会雑誌 ((公社)日本整形外科学会)  99 ( 3 ) S676 - S676 2025.03

    ISSN  0021-5325

  • 肺非結核性抗酸菌(NTM)症の立位/臥位胸部CTを用いた肺体積の定量評価

    加治 正憲, 朝倉 崇徳, 田中 拓, 南宮 湖, 中鉢 正太郎, 飯塚 紳, 小澤 拓矢, 福永 直輝, 長尾 元太, 阿瀬川 周平, 中川原 賢亮, 鎌田 浩史, 山田 祥岳, 福永 興壱, 長谷川 直樹

    日本呼吸器学会誌 ((一社)日本呼吸器学会)  14 ( 増刊 ) 281 - 281 2025.03

    ISSN  2186-5876

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Presentations 【 Display / hide

  • 嚢胞性変化を伴うdiffuse pulmonary meningotheliomatosisの自然経過

    新妻 雄介, 池田 織人, 山田 祥岳, 陣崎 雅弘, 松本 俊亮, 杉浦 弘明, 長尾 元太, 大喜多 肇

    Japanese Journal of Radiology, 

    2026.02

    (公社)日本医学放射線学会

  • Fontan術後患者における遠隔期の問題にどう取り組むか フォンタン循環の房室弁逆流の定量評価での4D flow MRIの有用性

    小平 真幸, 森 啓純, 中原 健裕, 浅野 聡, 木村 舞, 住友 直文, 小柳 喬幸, 山田 祥岳, 木村 成卓, 山岸 敬幸, 陣崎 雅弘, 家田 真樹

    日本成人先天性心疾患学会雑誌, 

    2026.01

    (一社)日本成人先天性心疾患学会

  • 体位変化が脳循環に与える影響 座位CTを用いた解析

    水谷 克洋, 山田 祥岳, 山田 稔, 横山 陽一, 小杉 健三, 吉田 啓佑, 高橋 里史, 秋山 武紀, 戸田 正博, 陣崎 雅弘

    日本脳神経血管内治療学会学術集会抄録集, 

    2025.11

    (一社)日本脳神経血管内治療学会

  • MR elastographyにおける撮像sequenceと空間分解能による弾性率推定精度の変化について

    柳澤 利哉, 波部 哲史, 伊東 大輝, 山田 くるみ, 沼野 智一, 山田 祥岳, 陣崎 雅弘

    日本放射線技術学会学術大会予稿集, 

    2025.10

    (公社)日本放射線技術学会

  • MRエラストグラフィの画質向上に関する検討 位相オフセット数と多周波数エラストグラフィによる比較

    波部 哲史, 伊東 大輝, 沼野 智一, 柳澤 利哉, 山田 くるみ, 山田 祥岳, 陣崎 雅弘

    日本放射線技術学会学術大会予稿集, 

    2025.10

    (公社)日本放射線技術学会

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Research Projects of Competitive Funds, etc. 【 Display / hide

  • Analysis of the Human Body Under Gravity Using Upright CT and Its Application to Future Medicine

    2025.04
    -
    2029.03

    Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (B), No Setting

     View Summary

    これまでの医療の主な診断対象は生命寿命を規定する器質的疾患であったが、今後、機能性疾患を対象とした健康寿命の延伸の為の医療が重要になる。立位CTの導入により、姿勢・骨盤底の緩み・筋肉量など身体的フレイルの評価、立位で増悪する腰痛の診断・膝関節異常の早期発見・嚥下機能や排尿機能の評価など機能性障害の病態解明や早期診断が可能になる。また、放射線治療を座位の状態で行えればコストや設置面積を大幅に縮小できる。今回は、立位・座位で評価可能な人体の構造・機能を解明し、それに基づき、①身体的フレイルの評価、②機能性障害の病態解明と早期診断、③座位放射線治療の実現、の新たな診断・治療への有効性を明らかにする。

  • Construction of a Novel CT-Based Diagnostic Framework for Extending Healthy Life Expectancy in a Super-Aging Society

    2025
    -
    2026

    Japan Radiological Society, Research grant from Japan Radiological Society supported by Bayer, Principal investigator

  • Elucidation of age-related changes and pathology and establishment of a method for early detection of diseases using upright CT: Aiming at extending healthy life expectancy

    2023.04
    -
    2026.03

    Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (C), Principal investigator

     View Summary

    現在の通常のCTは臥位で撮影するため、ヒトの日常生活の状態(立位/座位) を反映しておらず、立位/座位での様々な病態を3次元的に画像化できていなかった。そこで我々は産学共同で320列立位CTを開発し、当施設に世界第1号機を導入した。これまでの初期検討により、立位と臥位で解剖学的構造や各種病態はかなり異なる事が分かった。この初期結果をふまえ、本研究では、新たな診断機器である立位CTを用いて、立位荷重下でより顕著となる加齢性変化や各種病態を画像的に解明しつつ、立位/座位での新たな疾患早期検出法の確立を目指す。そして立位CTによる早期診断により、超高齢社会における健康寿命の更なる延伸、生活の質の向上を目指す。

  • Construction of CT Diagnostics in the Near Future: Aiming at Extending Healthy Life Span in the Super-aging Society

    2022.09
    -
    Present

    Takeda Science Foundation, 医学系研究助成 臨床, Principal investigator

  • Elucidation of human body function using upright CT ~Looking at the era of healthy longevity~

    2021.04
    -
    2024.03

    Keio University, Grants-in-Aid for Scientific Research, Jinzaki Masahiro, Grant-in-Aid for Scientific Research (B), No Setting

     View Summary

    In the era of health and longevity, we aimed to promote the early detection and elucidation of functional disorders. To achieve this, we conducted research on the mechanisms of three functions: swallowing, urination, and walking. For swallowing function, we had a specialized chair designed, and developed a protocol for scanning and established a method for this examination. For urination function, we established a scanning protocol, and clarified the mechanism of normal urination. Imaging of patient groups revealed three patterns of urination disorders (benign prostatic hyperplasia, bladder neck sclerosis, neurogenic bladder). Thus, evaluating urination function appears useful in devising treatment strategies. Concerning walking function, the relation with posture was deemed significant, and software for objectively evaluating posture was developed. Additionally, software capable of measuring muscle volume with a 5% margin of error was developed, deemed useful in predicting frailty.

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Intellectual Property Rights, etc. 【 Display / hide

  • X線CT装置及びX線CT装置の動作制御方法

    Date applied: 特願2025-9870  2025.01 

    Date issued: 特許第7806313号  2026.01

    Date registered: 2026.01

    Patent, Joint

  • X線コンピュータ断層撮影装置

    Date applied: 特願2021-183419  2021.11 

    Date announced: 特開2023-070936  2023.05 

    Date issued: 特許第7813556号  2026.02

    Date registered: 2026.02

    Patent, Joint

  • 被検体の透明化方法および透明化された被検体の製造方法

    Date applied: 特願2020-082566  2020.05 

    Date announced: 特開2021-177146  2021.11 

    Date issued: 特許第7411223号  2024.01

    Date registered: 2023.12

    Patent, Joint

  • 外反母趾の予防方法

    Date applied: 特願2019-091025  2019.05 

    Date announced: 特開2020-185121  2020.11 

    Patent

Awards 【 Display / hide

  • Magna Cum Laude award at the 102nd Scientific Assembly and Annual Meeting of the Radiological Society of North America

    2016.11, Radiological Society of North America, Dynamic Chest Radiography Using Flat Panel Detector System: Technique and Applications

    Type of Award: Award from international society, conference, symposium, etc.,  Country: United States

  • Platinum Medal (the Best Presentation Award) at the 79rd Annual Meeting of the Japan Radiological Society

    Yoshitake Yamada, Minoru Yamada, Yoichi Yokoyama, Akiko Tanabe, Shiho Matsuoka, Yuki Niijima, Mitsuru Murata, Koichi Fukunaga, Shotaro Chubachi, Masahiro Jinzaki, 2020.06, Japan Radiological Society, Comparison of Inspiratory and Expiratory Lung/Lobe Volumes Among Supine, Standing and Sitting Positions scanned with Conventional and 320-Detector-Row Upright CT

    Type of Award: Award from Japanese society, conference, symposium, etc.

  • Certificate of Merit Award at the 103rd Scientific Assembly and Annual Meeting of the Radiological Society of North America

    2017.11, Radiological Society of North America, Four-dimensional (4D) Computed Tomography (CT) with Non-rigid Registration Between Adjacent Phases Before and After Transcatheter Aortic Valve Implantation (TAVI): One Step Forward Into the Future

    Type of Award: Award from international society, conference, symposium, etc.,  Country: United States

  • Achievement Award, Japanese Society of Medical Imaging Technology

    Masahiro Jinzaki, Yoshitake Yamada, Minoru Yamada, Yoichi Yokoyama, Takeo Nagura, Naomichi Ogihara, Yasutaka Shindo, Makoto Nakano, 2022.07, Japanese Society of Medical Imaging Technology, Development of Whole-Body Upright Computed Tomography

    Type of Award: Award from Japanese society, conference, symposium, etc.

  • Silver Medal, the 80th Annual Meeting of the Japan Radiological Society

    Yoshitake Yamada, Shotaro Chubachi, Minoru Yamada, Yoichi Yokoyama, Akiko Tanabe, Shiho Matsuoka, Yuki Niijima, Mitsuru Murata, Koichi Fukunaga, Masahiro Jinzaki, 2021.04, Japan Radiological Society, Correlation between lung volumes on upright CT and measurements on pulmonary function test in COPD patients: comparison with supine CT

    Type of Award: Award from Japanese society, conference, symposium, etc.

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Other 【 Display / hide

  • JCS 2018 Guideline on Diagnosis of Chronic Coronary Heart Diseases: Cooperator

    2019年03月

     View Details

    JCS 2018 Guideline on Diagnosis of Chronic Coronary Heart Diseases: Cooperator

  • 2026画像診断ガイドライン 心血管領域委員として分担執筆

     View Details

    2026画像診断ガイドライン 心血管領域委員として分担執筆

  • 2021画像診断ガイドライン 心血管領域委員として分担執筆

     View Details

    2021画像診断ガイドライン 心血管領域委員として分担執筆

  • The Uehara Memorial Foundation, Overseas research fellowships

    2016年01月

     View Details

    The Uehara Memorial Foundation, Overseas research fellowships

 

Courses Taught 【 Display / hide

  • CLINICAL CLERKSHIP IN RADIOLOGY

    2026

  • LECTURE SERIES, RADIOLOGY

    2026

  • INTRODUCTION TO CLINICAL CLERKSHIPS

    2026

  • LECTURE SERIES, RADIOLOGY

    2025

  • CLINICAL CLERKSHIP IN RADIOLOGY

    2025

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Courses Previously Taught 【 Display / hide

  • 肝・胆・膵の画像診断

    慶應義塾大学医学部

    2018.04
    -
    2019.03

  • 骨盤腔の画像診断

    慶應義塾大学医学部

    2018.04
    -
    2019.03

  • 肝・胆・膵の画像診断

    Keio University

    2017.04
    -
    2018.03

    Full academic year

  • 肝・胆・膵の画像診断

    Keio University

    2015.04
    -
    2016.03

    Full academic year, Laboratory work/practical work/exercise

  • 女性骨盤臓器の画像診断

    Keio University

    2015.04
    -
    2016.03

    Full academic year, Laboratory work/practical work/exercise

Educational Activities and Special Notes 【 Display / hide

  • The person in charge of Objective Structured Clinical Examination

    2019.04
    -
    Present

    , Special Affairs

 

Memberships in Academic Societies 【 Display / hide

  • Japan Radiological Society, 

    2006
    -
    Present
  • The Japan Society of Ultrasonics in Medicine, 

    2014
    -
    Present
  • The Japanese Society of Nuclear Medicine, 

    2013
    -
    Present
  • Radiological Society of North America, 

    2010
    -
    Present
  • The Japanese Society of Internal Medicine, 

    2002
    -
    Present