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Development of four-dimensional radiotherapy planning technology using deep learning-based prediction of motion interplay

Research Project

Project/Area Number 20K08022
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 52040:Radiological sciences-related
Research InstitutionOsaka University

Principal Investigator

Akino Yuichi  大阪大学, 大学院医学系研究科, 特任助教(常勤) (00722323)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2022: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords放射線治療 / 呼吸性移動 / Interplay effects / VMAT / 定位放射線治療 / サイバーナイフ / 人工知能 / Interplay効果 / 4次元放射線治療 / 4次元放射線治療 / 四次元治療計画 / 深層学習 / 強度変調放射線治療 / 放射線治療精度 / 粒子線治療 / 治療計画
Outline of Research at the Start

本研究では、呼吸で動く肺がんや肝臓がんに対する回転強度変調放射線治療 (VMAT) や粒子線治療における腫瘍の動きを考慮した放射線治療計画システムを開発する。呼吸の動きに対してすべてのパターンの線量計算を行うと膨大な時間がかかり、さらに呼吸の不規則な変化に対応するのは非常に難しい。そこで人工知能の技術を用いて、呼吸性移動の影響を予測するシステムを開発し、高速に評価できる方法を開発する。

Outline of Final Research Achievements

The purpose of this study was to develop a system to evaluate the interplay effects of an X-ray beam with dynamic intensity modulation on a tumor with respiratory motion. Deep learning was used to predict the dose distribution in each segment of volumetric modulated radiotherapy (VMAT). It also enabled dosimetric evaluation of the effect of the interplay between the respiratory motion of the liver tumor and the dynamic beam delivery of VMAT. We also developed a system to evaluate the interplay of the tracking errors in CyberKnife respiratory-tracking irradiation. Furthermore, we developed new treatment techniques and evaluation methods for dynamic changes in irradiation, such as raster-scanning intensity-modulated radiotherapy using the CyberKnife and effective dose rate for brachytherapy. We also developed a deep neural network model for generating dual-energy CT images.

Academic Significance and Societal Importance of the Research Achievements

Interplay効果を評価した報告は多くあるが、非常に高度な技術と高性能計算機を用いた研究レベルのものが多く、臨床現場で迅速に行えるものではない。近年放射線治療のワークフローは効率化が進み、CT撮影から数日での治療開始が可能となった。しかし複雑な解析方法はこの短期間のワークフローに組み込むことが困難である。本研究ではInterplay効果の影響を評価する複数のシステムを開発した。これらは複雑な解析を行うものではなく、容易に臨床のワークフローに導入することが可能と考えられる。そのため本研究の成果は臨床において、個々の患者の腫瘍と呼吸状態に対して堅牢な治療計画を作成することに役立つと期待される。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (21 results)

All 2023 2022 2021 2020

All Journal Article (17 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 17 results,  Open Access: 8 results) Presentation (4 results) (of which Int'l Joint Research: 3 results)

  • [Journal Article] Optimization of Fluence Map for CyberKnife Raster Scanning Intensity Modulated Radiotherapy2023

    • Author(s)
      Akino Y, Shiomi H, Mabuchi N, Masai N, Oh RJ, Ogawa K.
    • Journal Title

      Anticancer Research

      Volume: 43 Issue: 4 Pages: 16314-16314

    • DOI

      10.21873/anticanres.16314

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Inverse planning optimization with lead block effectively suppresses dose to the mandible in high-dose-rate brachytherapy for tongue cancer2023

    • Author(s)
      Akino Yuichi、Shiomi Hiroya、Tsujimoto Tomomi、Hamatani Noriaki、Hirata Takero、Oda Michio、Takeshita Ami、Shimamoto Hiroaki、Ogawa Kazuhiko、Murakami Shumei
    • Journal Title

      Japanese Journal of Radiology

      Volume: 41 Issue: 11 Pages: 1290-1297

    • DOI

      10.1007/s11604-023-01451-w

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Evaluation of Lung and Liver Tumor Dose Coverage Treated With the CyberKnife Synchrony System With Consideration of Measured Tracking Errors2023

    • Author(s)
      Yuichi Akino, Hiroya Shiomi, Naoichi Higashinaka, Tomohiro Kouno, Nobuhisa Mabuchi, Fumiaki Isohashi, Yuji Seo, Kei Fujiwara, Setsuo Tamenaga, Kazuhiko Ogawa
    • Journal Title

      Anticancer Res

      Volume: 43 Issue: 1 Pages: 231-238

    • DOI

      10.21873/anticanres.16154

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Pseudo low-energy monochromatic imaging of head and neck cancers: Deep learning image reconstruction with dual-energy CT2022

    • Author(s)
      Yuhei Koike, Shingo Ohira, Yuri Teraoka, Ayako Matsumi, Yasuhiro Imai, Yuichi Akino, Masayoshi Miyazaki, Satoaki Nakamura, Koji Konishi, Noboru Tanigawa, Kazuhiko Ogawa
    • Journal Title

      International Journal of Computer Assisted Radiology and Surgery

      Volume: - Issue: 7 Pages: 1271-1279

    • DOI

      10.1007/s11548-022-02627-x

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Dosimetric Evaluation of CyberKnife Synchrony System for Liver Tumors With Respiratory Phase Shifts2022

    • Author(s)
      Sakiko Yoshioka, Yuichi Akino, Hiroya Shiomi, Takero Hirata, Naoki Kai, Kazuhiko Ogawa, Masahiko Koizumi
    • Journal Title

      In Vivo

      Volume: 36 Issue: 6 Pages: 2861-2868

    • DOI

      10.21873/invivo.13026

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Poly (ADP-ribose) polymerase inhibitors sensitize cancer cells to hypofractionated radiotherapy through altered selection of DNA double-strand break repair pathways2022

    • Author(s)
      Seo Y, Tamari K, Takahashi Y, Minami K, Tatekawa S, Isohashi F, Suzuki O, Akino Y, Ogawa K.
    • Journal Title

      International Journal of Radiation Biology

      Volume: in press Issue: 7 Pages: 1222-1234

    • DOI

      10.1080/09553002.2022.2020357

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Dose rate in the highest irradiation area of the rectum correlates with late rectal complications in patients treated with high-dose-rate computed tomography-based image-guided brachytherapy for cervical cancer2021

    • Author(s)
      Isohashi F, Akino Y, Matsumoto Y, Suzuki O, Seo Y, Tamari K, Sumida I, Sawada K, Ueda Y, Kobayashi E, Tomimatsu T, Nakanishi E, Nishi T, Kimura T, Ogawa K
    • Journal Title

      Journal of Radiation Research

      Volume: 62 Issue: 3 Pages: 494-501

    • DOI

      10.1093/jrr/rrab023

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Improvement of image quality for pancreatic cancer using deep learning-generated virtual monochromatic images: Comparison with single-energy computed tomography2021

    • Author(s)
      Ohira Shingo、Koike Yuhei、Akino Yuichi、Kanayama Naoyuki、Wada Kentaro、Ueda Yoshihiro、Masaoka Akira、Washio Hayate、Miyazaki Masayoshi、Koizumi Masahiko、Ogawa Kazuhiko、Teshima Teruki
    • Journal Title

      Physica Medica

      Volume: 85 Pages: 8-14

    • DOI

      10.1016/j.ejmp.2021.03.035

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Characteristics of microSilicon diode detector for electron beam dosimetry2021

    • Author(s)
      Akino Y, Das IJ, Fujiwara M, Kaneko A, Masutani T, Mizuno H, Isohashi F, Suzuki O, Seo Y, Tamari K, Ogawa K
    • Journal Title

      Journal of Radiation Research

      Volume: 62 Pages: 1130-1138

    • DOI

      10.1093/jrr/rrab085

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Technical Note: Characteristics of a microSilicon X shielded diode detector for photon beam dosimetry2021

    • Author(s)
      Akino Yuichi、Okamura Keita、Das Indra J.、Isohashi Fumiaki、Seo Yuji、Tamari Keisuke、Hirata Takero、Hayashi Kazuhiko、Inoue Shinichi、Ogawa Kazuhiko
    • Journal Title

      Medical Physics

      Volume: 48 Issue: 4 Pages: 2004-2009

    • DOI

      10.1002/mp.14639

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Development of raster scanning IMRT using a robotic radiosurgery system2021

    • Author(s)
      Shiomi Hiroya、Akino Yuichi、Sumida Iori、Masai Norihisa、Oh Ryoong-Jin、Ogawa Kazuhiko
    • Journal Title

      Journal of Radiation Research

      Volume: 62 Issue: 2 Pages: 364-373

    • DOI

      10.1093/jrr/rraa136

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Correction of lateral response artifacts from flatbed scanners for dual-channel radiochromic film dosimetry2021

    • Author(s)
      Akino Yuichi、Shiomi Hiroya、Isohashi Fumiaki、Suzuki Osamu、Seo Yuji、Tamari Keisuke、Hirata Takero、Mizuno Hirokazu、Ogawa Kazuhiko
    • Journal Title

      Journal of Radiation Research

      Volume: 62 Issue: 2 Pages: 319-328

    • DOI

      10.1093/jrr/rraa124

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Characterization of a microSilicon diode detector for small-field photon beam dosimetry2020

    • Author(s)
      Akino Yuichi、Fujiwara Masateru、Okamura Keita、Shiomi Hiroya、Mizuno Hirokazu、Isohashi Fumiaki、Suzuki Osamu、Seo Yuji、Tamari Keisuke、Ogawa Kazuhiko
    • Journal Title

      Journal of Radiation Research

      Volume: 61 Issue: 3 Pages: 410-418

    • DOI

      10.1093/jrr/rraa010

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Evaluation of the Differences Between Measurements in Multiple Institutions and Calculation Modeled by Representative Beam Data in Prostate VMAT Plan2020

    • Author(s)
      Hironao Goto
    • Journal Title

      in vivo

      Volume: 34 Issue: 3 Pages: 1503-1509

    • DOI

      10.21873/invivo.11937

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Repositioning accuracy of a novel thermoplastic mask for head and neck cancer radiotherapy2020

    • Author(s)
      Fukao Mari、Okamura Keita、Sabu Shotaro、Akino Yuichi、Arimura Takehiro、Inoue Shinichi、Kado Ryoko、Seo Yuji
    • Journal Title

      Physica Medica

      Volume: 74 Pages: 92-99

    • DOI

      10.1016/j.ejmp.2020.05.005

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Collection and analysis of photon beam data for Varian C-series linear accelerators: a potential reference beam data set2020

    • Author(s)
      Tanaka Yoshihiro、Mizuno Hirokazu、Akino Yuichi、Isono Masaru、Masai Norihisa、Uta Erika、Yamamoto Toshijiro
    • Journal Title

      Physical and Engineering Sciences in Medicine

      Volume: 43 Issue: 3 Pages: 889-901

    • DOI

      10.1007/s13246-020-00885-0

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Commissioning of total body irradiation using plastic bead bags2020

    • Author(s)
      Akino Yuichi、Maruoka Shintaro、Yano Katsuyuki、Abe Hiroshi、Isohashi Fumiaki、Seo Yuji、Tamari Keisuke、Hirata Takero、Kawakami Manabu、Nakae Yoshiki、Tanaka Yoshihiro、Ogawa Kazuhiko
    • Journal Title

      Journal of Radiation Research

      Volume: 61 Issue: 6 Pages: 959-968

    • DOI

      10.1093/jrr/rraa072

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Evaluation of interplay effects of VMAT for liver tumors by prediction of dose distribution using deep learning2022

    • Author(s)
      Mizuno R, Akino Y, Koizumi M
    • Organizer
      The 5th International Cancer Research Symposium
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Development of reference plan-based verification system for intracavitary brachytherapy for uterine cervical cancer2021

    • Author(s)
      Akino Y, Isohashi F, Arimura T, Seo Y, Tamari K, Hirata T, Hayashi K, Ogawa K
    • Organizer
      63rd AAPM Annual Meeting & Exhibition
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Characterization of microSilicon diode detector for electron beam dosimetry2020

    • Author(s)
      Yuichi Akino, Masateru Fujiwara, Akari Kaneko, Takashi Masutani, Hirokazu Mizuno, Fumiaki Isohashi, Osamu Suzuki, Yuji Seo, Keisuke Tamari, Kazuhiko Ogawa
    • Organizer
      第119回 日本医学物理学会学術大会
    • Related Report
      2020 Research-status Report
  • [Presentation] Evaluation of respiratory phase shifts between lung tumor and external marker motions using a 320-slice dynamic volume 4D-CT2020

    • Author(s)
      Yuichi Akino, Osamu Suzuki, Hiroya Shiomi, Fumiaki Isohashi, Yuji Seo, Keisuke Tamari, Takero Hirata, Kazuhiko Ogawa
    • Organizer
      2020 Joint AAPM COMP Meeting
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research

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Published: 2020-04-28   Modified: 2025-01-30  

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