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Target position prediction system by machine learning corresponding to various irregular breathing patterns

Research Project

Project/Area Number 17K10493
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Radiation science
Research InstitutionKeio University (2019)
Tokai University (2017-2018)

Principal Investigator

Kunieda Etsuo  慶應義塾大学, 医学部(信濃町), 客員教授 (70170008)

Co-Investigator(Kenkyū-buntansha) 株木 重人  東海大学, 医学部, 講師 (00402777)
藤田 幸男  東海大学, 医学部, 講師 (10515985)
松元 佳嗣  東海大学, 医学部, 助教 (20568969)
二上 菜津実  東海大学, 医学部, 助教 (20806195)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords放射線治療 / 機械学習 / 胸部放射線治療 / 呼吸検出 / 標的位置予測 / 呼吸移動 / ファントム / 深層学習 / SBRT / 標的 / 位置予測 / 不規則呼吸 / 不規則呼吸パターン / Deep Neural Network / 動態ファントム
Outline of Final Research Achievements

The purpose of this research is to develop a machine-learning system that analyzes the movement of the abdominal wall and predicts the target position for radiotherapy of the tumor such as a liver tumor. Deep Neural Network (DNN) was used to predict the relationship between abdominal wall movement and target position in various respiratory patterns. This allows the target position to be predicted even with irregular breathing. A newly developed dynamic motion phantom was used to evaluate our system. The phantom reproduces respiratory movement by increasing or decreasing the volume of air cells that simulates the lungs by means of air-compression drive. It is a completely new phantom that simulates the morphology of each organ. Furthermore, detailed analysis was performed to confirm the reproducibility of movements. In addition, several papers have been published on the outline of organs by machine learning of the chest and other radiation therapy related to respiration movements.

Academic Significance and Societal Importance of the Research Achievements

体幹部定位放射線治療は肝臓、膵臓などのX線で見えない部位への適応が広がっており、標的の呼吸移動に対する対応が重要となっている。現行の体表マーカーと4D-CTで知ることができる標的位置から両者の相関関係を求めて照射時の体表マーカーの動きを指標にして標的位置を予測する方法は、規則的、整った呼吸状態でないと予測が困難である。
腹壁全体の動きを3次元的、時間的に観察することによって腫瘍位置を予測できることに着目しディープラーニングを用いて、標的位置を予測することを発想した。本法を発展させ、普及すればより呼吸に影響される放射線治療の精度を高め治療成績を向上、また医療費の削減にも貢献できる。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (10 results)

All 2020 2019 2017

All Journal Article (6 results) (of which Peer Reviewed: 6 results,  Open Access: 5 results) Presentation (4 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Efficacy evaluation of 2D, 3D U-Net semantic segmentation and atlas-based segmentation of normal lungs excluding the trachea and main bronchi.2020

    • Author(s)
      Nemoto T, Futakami N, Yagi M, Kumabe A, Takeda A, Kunieda E, Shigematsu N.
    • Journal Title

      J Radiat Res

      Volume: 61(2) Issue: 2 Pages: 257-264

    • DOI

      10.1093/jrr/rrz086

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Analysis of key clinical features for achieving complete remission in stage III and IV non-small cell lung cancer patients2019

    • Author(s)
      Aoki Takuya、Kunieda Etsuo、et al.
    • Journal Title

      Respiratory Research

      Volume: 20 Issue: 1 Pages: 1-16

    • DOI

      10.1186/s12931-019-1235-3

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Inter-fractional variations in the dosimetric parameters of accelerated partial breast irradiation using a strut-adjusted volume implant2019

    • Author(s)
      Iijima Kotaro、Okamoto Hiroyuki、Takahashi Kana、Aikawa Ako、Wakita Akihisa、Nakamura Satoshi、Nishioka Shie、Harada Ken、Notake Ryoichi、Sugawara Akimoto、Yoshimura Ryoichi、Kunieda Etsuo、Itami Jun
    • Journal Title

      Journal of Radiation Research

      Volume: 61 Issue: 1 Pages: 123-133

    • DOI

      10.1093/jrr/rrz061

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Basic evaluation of a novel 4D target and human body phantom2019

    • Author(s)
      Matsumoto Y、Kabuki S、Sugawara A、Kitahara T、Akiba T、Fujita Y、Kawamata I、Yamada K、Amino K、Sasaki Y、Nishida M、Murakami K、Sugahara K、Saito N、Kunieda E
    • Journal Title

      Physics in Medicine & Biology

      Volume: 64 Issue: 14 Pages: 145002-145002

    • DOI

      10.1088/1361-6560/ab259c

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Stereotactic body radiotherapy for patients with non-small-cell lung cancer using RapidArc delivery and a steep dose gradient: prescription of 60% isodose line of maximum dose fitting to the planning target volume2019

    • Author(s)
      Tsurugai Yuichiro、Takeda Atsuya、Sanuki Naoko、Eriguchi Takahisa、Aoki Yousuke、Oku Yohei、Akiba Takeshi、Sugawara Akitomo、Kunieda Etsuo
    • Journal Title

      Journal of Radiation Research

      Volume: 60 Issue: 3 Pages: 364-370

    • DOI

      10.1093/jrr/rry112

    • Related Report
      2019 Annual Research Report 2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Questionnaire survey comparing surgery and stereotactic body radiotherapy for lung cancer: lessons from patients with experience of both modalities2019

    • Author(s)
      Takeda Atsuya、Sanuki Naoko、Tsurugai Yuichiro、Taguri Masataka、Horita Nobuyuki、Hara Yu、Eriguchi Takahisa、Akiba Takeshi、Sugawara Akitomo、Kunieda Etsuo、Kaneko Takeshi
    • Journal Title

      Journal of Thoracic Disease

      Volume: 11 Issue: 6 Pages: 2479-2489

    • DOI

      10.21037/jtd.2019.05.76

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Development and Verification of the Three-Dimensional Evaluation System for the Tip Position Accuracy in Brachytherapy2017

    • Author(s)
      T Kikuchi, S Kabuki , T Hiroki , H Todaka , E Kunieda
    • Organizer
      American Association of Physicists in Medicine 59th annual meeting
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Basic Study and Improvements of Electron-Tracking Compton Camera for Practical Use2017

    • Author(s)
      S Kabuki, S Fujii , T Nagakura , J Yamashita , J Kushida , K Nishijima , A Takada , T MIzumoto , Y Mizumura9 , T Tanimori , E Kunieda
    • Organizer
      American Association of Physicists in Medicine 59th annual meeting
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 電子飛跡検出型コンプトンカメラを用いた陽子線照射時の即発ガンマ線が増加の基礎試験2017

    • Author(s)
      株木 重人
    • Organizer
      第30回日本放射線腫瘍学会
    • Related Report
      2017 Research-status Report
  • [Presentation] 機械学習を用いたがんステージングからの総線量予測2017

    • Author(s)
      二上 菜津実
    • Organizer
      第30回日本放射線腫瘍学会
    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2021-02-19  

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