Rchr
J-GLOBAL ID：201901017292628655   Update date: Feb. 01, 2024

Masashi Yagi

Masashi Yagi
Affiliation and department：
Osaka University Department of Carbon Ion Radiotherapy, Graduate School of Medicine

About Osaka University Department of Carbon Ion Radiotherapy, Graduate School of Medicine


Job title： Endowed Chair Assistant Professor
Research field  (1)： Radiology
Research keywords  (3)： Radiotherapy ,  Heavy Ion Therapy ,  Medical Physics
Research theme for competitive and other funds  (6)：
  • 2022 - 2025 陽子線治療の高精度技術標準化に基づいたモデルアプローチを含む臨床的有用性確立に関する研究
  • 2022 - 2025 Three-dimensional patient-specific QA for carbon-ion therapy
  • 2022 - 2025 FLASH effect on carbon-ion beam
  • 2022 - 2023 Development of fixation devices using new materials to reduce pain and radiation exposure and their application to radiotherapy
  • 2017 - 2021 Study on tissue specific biological effectiveness of carbon-ion beam
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Papers (49)：
  • Toshiro Tsubouchi, Chris J Beltran, Masashi Yagi, Noriaki Hamatani, Masaaki Takashina, Shinichi Shimizu, Tatsuaki Kanai, Keith M Furutani. Beam delivery characteristics of the Hitachi carbon ion scanning system at Osaka Heavy Ion Medical Accelerator in Kansai (HIMAK). Medical physics. 2023
  • Yushi Wakisaka, Kazumasa Minami, Nao Okada, Toshiro Tsubouchi, Noriaki Hamatani, Masashi Yagi, Masaaki Takashina, Tatsuaki Kanai. Treatment planning of carbon ion radiotherapy for prostate cancer based on cellular experiments with PC3 human prostate cancer cells. Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics (AIFB). 2023. 107. 102537-102537
  • Masashi Yagi, Shinichi Shimizu, Kazumasa Minami, Noriaki Hamatani, Toshiro Tsubouchi, Masaaki Takashina, Masumi Umezawa, Takuya Nomura, Wataru Mukoyoshi, Teiji Nishio, et al. Ultra-high Dose-rate Carbon-ion Scanning Beam With a Compact Medical Synchrotron Contributing to Further Development of FLASH Irradiation. Anticancer research. 2023. 43. 2. 581-589
  • Masashi Yagi, Toshiro Tsubouchi, Noriaki Hamatani, Masaaki Takashina, Naoto Saruwatari, Kazumasa Minami, Yushi Wakisaka, Shinichiro Fujitaka, Shusuke Hirayama, Hideaki Nihongi, et al. Validation of robust radiobiological optimization algorithms based on the mixed beam model for intensity-modulated carbon-ion therapy. PloS one. 2023. 18. 7. e0288545
  • Taku Nakaji, Tatsuaki Kanai, Masaaki Takashina, Akihiko Matsumura, Kohei Osaki, Masashi Yagi, Toshiro Tsubouchi, Noriaki Hamatani, Kazuhiko Ogawa. Clinical dose assessment for scanned carbon-ion radiotherapy using linear energy transfer measurements and Monte Carlo simulations. Physics in Medicine & Biology. 2022
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MISC (47)：
  • 伴 春奈, 辻本 豊, 東野谷 光弘, 北川 智彦, 中尾 弘, 田中 英一, 八木 雅史. COVID-19陽性患者に対する継続的な放射線治療実施方法の確立. 国立病院総合医学会講演抄録集. 2022. 76回. 495-495
  • 池田 恢, 高山 仁志, 和田 健太郎, 北野 崇夫, 中田 陵賀, 藤井 和彦, 関 和文, 前田 美恵子, 岡本 涼夏, 廣瀬 直美, et al. 放射線治療センター・7年の軌跡 「待たせない,諦めない」を貫いて. 堺市立総合医療センター医学雑誌. 2022. 22. 36-41
  • Yagi Masashi, Wakisaka Yushi, Tsubouchi Toshiro, Hamatani Noriaki, Takashina Masaaki, Shimizu Shinichi, Ogawa Kazuhiko, Kanai Tatsuaki. 強度変調炭素イオン線治療に対するmixed beam modelに基づく二つのロバスト放射線生物学的最適化アルゴリズムの有効性(Validity of Two Robust Radiobiological Optimization Algorithms Based on the Mixed Beam Model for Intensity Modulated Carbon-ion Therapy). 日本放射線技術学会総会学術大会予稿集. 2022. 78回. 274-275
  • Wakisaka Yushi, Minami Kazumasa, Okada Nao, Tsubouchi Toshiro, Hamatani Noriaki, Yagi Masashi, Takashina Masaaki, Ishii Takayoshi, Koizumi Masahiko, Kanai Tatsuaki. ヒト前立腺癌細胞株PC3の細胞実験に基づく前立腺癌に対する重粒子線治療の治療計画立案(Treatment Planning on Carbon Ion Radiotherapy for Prostate Cancer Based on Cellular Experiments of PC3 Human Prostate Cancer Cell Line). 日本放射線技術学会総会学術大会予稿集. 2022. 78回. 283-283
  • Saruwatari Naoto, Minami Kazumasa, Umemura Misato, Fukuda Shuka, Tsubouchi Toshiro, Hamatani Noriaki, Yagi Masashi, Takashina Masaaki, Kanai Tatsuaki, Koizumi Masahiko. 強度変調イオン照射の臨床的線量を検証するCommissioning Systemの確立(Establishing the Commissioning System for Verifying the Clinical Dose of Intensity Modulated Ion Therapy). 日本放射線技術学会総会学術大会予稿集. 2022. 78回. 283-283
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Patents (1)：
Books (3)：
  • Addendum to the QA guideline for particle therapy machine 2016
    2020
  • 詳説非剛体レジストレーション : 放射線治療領域
    中外医学社 2020 ISBN:9784498065284
  • DIR Guideline 2018
    2020
Lectures and oral presentations  (21)：
  • Effect of dose nonuniformity on cell killing effect in carbon ion radiotherapy
    (the 61st Annual PTCOG Conference 2023)
  • The effect of Ultra-High Dose-Rate Carbon ion irradiation to cell invasion on breast tumor cells
    (the 61st Annual PTCOG Conference 2023)
  • Beam monitors for a compact medical synchrotron based ultra-high dose-rate scanned carbon-ion beam contributing to further development of FLASH irradiation
    (the 61st Annual PTCOG Conference 2023)
  • THE ABILITY OF A COMPACT-TYPE MEDICAL SYNCHROTRON ON ULTRA-HIGH DOSE-RATE SCANNED CARBON-ION BEAM FOR FLASH RESEARCH
    (2nd Flash Radiotherapy and Particle Therapy Conference (FRPT 2022) 2022)
  • Commissioning of VQA for Carbon Ion Treatment Planning
    (Mayo Clinic, OU, OHITC Joint Seminar 2022)
ｍore...
Education (3)：
  • 2010 - 2014 Osaka University Graduate School of Medicine Division of Medicine
  • 2008 - 2010 Osaka University Graduate School of Medicine Division of Health Sciences
  • 2004 - 2008 Osaka University Faculty of Medicine School of Allied Health Sciences
Professional career (1)：
  • Ph.D. (Osaka University)
Work history (5)：
  • 2015/06 - 現在 Osaka University Graduate School of Medicine Department of Carbon Ion Radiotherapy Endowed Chair Assistant Professor
  • 2014/04 - 2015/05 Osaka University Graduate School of Medicine Radiation Oncology, Department of Radiology Visiting Researcher
  • 2012/04 - 2014/03 University of Minnesota Medical School Visiting Researcher
  • 2011/09 - 2012/03 University of Groningen Kernfysisch Versneller Instituut Visiting Researcher
  • 2008/09 - 2010/03 Hyogo Ion Beam Medical Center Department of Radiation Technology
Committee career (2)：
  • 2020/06 - 現在 Japan Society of Medical Physics International Exchange Committee
  • 2015 - 現在 Japan Society of Medical Physics Representative
Awards (9)：
  • 2023/04 - Japan Society of Medical Physics Student Encouragement Award A Study on Acquisition System of Carbon ion CT image
  • 2023/04 - Japan Society of Medical Physics Student Encouragement Award Research and development of multipurpose 2D radiation measurement system including time axis
  • 2022/12 - 2nd Flash Radiotherapy and Particle Therapy Conference (FRPT 2022) Best E-Poster Award THE ABILITY OF A COMPACT-TYPE MEDICAL SYNCHROTRON ON ULTRA-HIGH DOSE-RATE SCANNED CARBON-ION BEAM FOR FLASH RESEARCH
  • 2022/04 - Japan Society of Medical Physics ICRPT Award Certificate of Merit Award Validity of two robust radiobiological optimization algorithms based on the mixed beam model for intensity modulated carbon-ion therapy
  • 2021/12 - Japanese Society for Quantum Medical Science Excellent presentation award Development of a Patient QA System Using Independent Beam Models and Irradiation Log Files for Heavy Ion Therapy
Show all
Association Membership(s) (2)：
Japanese Society for Radiation Oncology ,  Japan Society of Medical Physics
※ Researcher’s information displayed in J-GLOBAL is based on the information registered in researchmap. For details, see here.

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