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Statistical approach to radiation therapy

Research Project

Project/Area Number 16K12397
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Statistical science
Research InstitutionHokkaido University

Principal Investigator

Mizuta Masahiro  北海道大学, 情報基盤センター, 教授 (70174026)

Co-Investigator(Kenkyū-buntansha) 伊達 広行  北海道大学, 保健科学研究院, 教授 (10197600)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords分割照射 / 治療計画 / 制約条件付最適化問題 / IBED / ASF / Therapeutic Window / 腫瘍制御確率 / 正常組織障害発生確率 / 危険臓器 / 生存モデル / 制約付き最適化問題
Outline of Final Research Achievements

Radiotherapy is one of the effective treatment methods for tumor. The beam can be controlled with an accuracy of a few millimeters nowadays. The basic theory for constructing the optimal irradiation plan in such a situation was studied. In many cases, radiation therapy is divided into several times up to about 30 times, i.e. fractionated irradiation. We constructed mathematical models to find the optimal number of irradiations. The definitions of the effects of tumor and normal organs on radiation were discussed. We proposed a method of construction for the theoretically optimal irradiation plan based on these models

Academic Significance and Societal Importance of the Research Achievements

腫瘍に対する放射線治療は、クオリティ・オブ・ライフの観点からも治療効果の観点からも有効な方法である。通常、複数回の照射による分割照射が実施されている。適切な照射回数について、多くの臨床的研究が発表されているが、理論構築は遅れている。本研究では、「腫瘍に大きなダメージを与えながら、同時に正常臓器への障害を最小にする」という原則を統計科学の立場から数理モデルで記述し、最適な照射回数および線量を導出した。本研究成果を基に、今後、臨床的な研究を進めることで、効果的で、効率的な放射線治療法の開発が可能になる。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (21 results)

All 2018 2017 2016

All Journal Article (6 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 6 results,  Open Access: 6 results) Presentation (15 results) (of which Int'l Joint Research: 6 results,  Invited: 1 results)

  • [Journal Article] Investigation of dose-rate effects and cell-cycle distribution under protracted exposure to ionizing radiation for various dose-rates2018

    • Author(s)
      Yusuke Matsuya, Stephen J. McMahon, Kaori Tsutsumi, Kohei Sasaki, Go Okuyama, Yuji Yoshii, Ryosuke Mori, Joma Oikawa, Kevin M. Prise, Hiroyuki Date
    • Journal Title

      Scientific Reports 8: 8287 (2018)

      Volume: 8 Issue: 1 Pages: 8287-8287

    • DOI

      10.1038/s41598-018-26556-5

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Integrated Modelling of Cell Responses after Irradiation for DNA-Targeted Effects and Non-Targeted Effects2018

    • Author(s)
      Yusuke Matsuya, Kohei Sasaki, Yuji Yoshii, Go Okuyama and Hiroyuki Date
    • Journal Title

      Scientific Reports

      Volume: 8 Issue: 1 Pages: 1-14

    • DOI

      10.1038/s41598-018-23202-y

    • NAID

      120006463569

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Estimation of the radiation-induced DNA double-strand breaks number considering cell cycle and absorbed dose per cell nucleus2018

    • Author(s)
      R. Mori, Y. Matsuya, Y. Yoshii, H. Date
    • Journal Title

      Journal of Radiation Research

      Volume: 印刷中 Issue: 3 Pages: 253-260

    • DOI

      10.1093/jrr/rrx097

    • NAID

      120006488426

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Comparison of the average surviving fraction model with the integral biologically effective dose model for an optimal irradiation scheme2018

    • Author(s)
      Takagi Ryo、Komiya Yuriko、Sutherland Kenneth L、Shirato Hiroki、Date Hiroyuki、Mizuta Masahiro
    • Journal Title

      Journal of Radiation Research

      Volume: 59 Issue: suppl_1 Pages: i32-i39

    • DOI

      10.1093/jrr/rrx084

    • NAID

      120006469010

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Present developments in reaching an international consensus for a model-based approach to particle beam therapy2018

    • Author(s)
      Prayongrat Anussara、Umegaki Kikuo、van der Schaaf Arjen、Koong Albert C、Lin Steven H、Whitaker Thomas、McNutt Todd、Matsufuji Naruhiro、Graves Edward、Mizuta Masahiro、Ogawa Kazuhiko、Date Hiroyuki、Moriwaki Kensuke、Ito Yoichi M、Kobashi Keiji、Dekura Yasuhiro、Shimizu Shinichi、Shirato Hiroki
    • Journal Title

      Journal of Radiation Research

      Volume: 59 Issue: suppl_1 Pages: i72-i76

    • DOI

      10.1093/jrr/rry008

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Change in Plasma Total, Esterified and Non-esterified Capric Acid Concentrations during a Short-term Oral Administration of Synthetic Tricaprin in Dogs2017

    • Author(s)
      SHRESTHA Rojeet、HIRANO Ken-ichi、SUZUKI Akira、YAMAGUCHI Satoshi、MIURA Yusuke、CHEN Yi-Fan、MIZUTA Masahiro、CHIBA Hitoshi、HUI Shu-Ping
    • Journal Title

      Analytical Sciences

      Volume: 33 Issue: 11 Pages: 1297-1303

    • DOI

      10.2116/analsci.33.1297

    • NAID

      130006199351

    • ISSN
      0910-6340, 1348-2246
    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Statistical and Mathematical Models for Radiotherapy2018

    • Author(s)
      Masahiro Mizuta
    • Organizer
      7th German-Japanese Symposium at TU Dortmund University
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ビッグデータとモデルの関係性について2018

    • Author(s)
      水田正弘
    • Organizer
      2018年度統計関連学会連合大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Cell surviving fraction model for multi-fractionated radiotherapy considering cancer stem cells (CSCs)2018

    • Author(s)
      S. Naijyo, Y. Matsuya, H. Date
    • Organizer
      The 5th meeting of educational symposium of radiation and health (ESRAH)
    • Related Report
      2018 Annual Research Report
  • [Presentation] Effects of X-rays energy spectrum and electron track structure on DNA damage.2018

    • Author(s)
      Y. Yachi, Y. Yoshii, Y. Matsuya, H. Date
    • Organizer
      The 5th meeting of educational symposium of radiation and health (ESRAH)
    • Related Report
      2018 Annual Research Report
  • [Presentation] Estimation of biological effect on normal and tumor cells in IMRT2018

    • Author(s)
      T. Miyao, Y. Matsuya, H. Date
    • Organizer
      The 5th meeting of educational symposium of radiation and health (ESRAH)
    • Related Report
      2018 Annual Research Report
  • [Presentation] Cell responses of lung cancer after exposure to X-rays following in-field and out-of-field configuration2018

    • Author(s)
      C. Yu, Y. Matsuya, M. Ishikawa, H. Date
    • Organizer
      The 18th AOCMP & The 16th SECOMP
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Micro- and nano-dosimetric analyses of the energy deposition by ionizing radiations2018

    • Author(s)
      Y. Yachi, Y. Yoshii, Y. Matsuya, H. Date
    • Organizer
      The 18th AOCMP & The 16th SECOMP
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Two stage variable selection approach to detect Gene×Environment interactions for Genome Wide Association Study (GWAS)2017

    • Author(s)
      Hiroaki Iijima, Yoichi M. Ito and Masahiro Mizuta
    • Organizer
      2016 International Conference for JSCS 30th Anniversary in Seattle
    • Place of Presentation
      Seattle Central Library (米国・シアトル市)
    • Year and Date
      2017-03-14
    • Related Report
      2016 Research-status Report
  • [Presentation] New Therapeutic Windows in Modern Radiotherapy2017

    • Author(s)
      Masahiko Mizuta
    • Organizer
      Medical Science and Engineering Symposium Model-based Approach: NTCP & TCP
    • Place of Presentation
      Hokkaido University (北海道・札幌市)
    • Year and Date
      2017-03-14
    • Related Report
      2016 Research-status Report
    • Invited
  • [Presentation] Meta-Analysis With Symbolic Data Analysis And Its Application For Clinical Data2017

    • Author(s)
      Ryo Takagi, Hiroyuki Minami, and Masahiro Mizuta
    • Organizer
      10th Conference of the IASC-ARS/68th Annual NZSA Conference
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Meta-Analysis and SDA2017

    • Author(s)
      Masahiro Mizuta
    • Organizer
      6th SDA Workshop
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Symbolic approach for big data, mini data, and neo big data2017

    • Author(s)
      Masahiro Mizuta
    • Organizer
      ISI
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] メタ分析におけるシンボリックデータ解析法の利用について2017

    • Author(s)
      水田正弘
    • Organizer
      2017年度統計関連学会連合大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 放射線照射後の細胞生存率曲線の検討 -細胞生存率モデルとパラメータ決定法の違いが及ぼす 影響-2016

    • Author(s)
      山田 亮太,木村 尭朗,松谷 悠佑,伊達 広行
    • Organizer
      第112回日本医学物理学会学術大会
    • Place of Presentation
      沖縄コンベンションセンター(沖縄県・宜野湾市)
    • Year and Date
      2016-09-08
    • Related Report
      2016 Research-status Report
  • [Presentation] Assessment in evaluation function for radiation therapy planning2016

    • Author(s)
      Ryo Takagi, Yuriko Komiya, Hiroyuki Minami and Masahiro Mizuta
    • Organizer
      The 4th Workshop in Statistics, Hokkaido University and Korea University
    • Place of Presentation
      Korea University (韓国・ソウル市)
    • Year and Date
      2016-06-21
    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2020-03-30  

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