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Development of Neutron Beam Intensity Modulation System for Boron Neutron Capture Therapy

Research Project

Project/Area Number 20K08076
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 InstitutionNagoya University

Principal Investigator

KAMOMAE Takeshi  名古屋大学, アイソトープ総合センター, 准教授 (60706282)

Co-Investigator(Kenkyū-buntansha) 櫻井 良憲  京都大学, 複合原子力科学研究所, 准教授 (20273534)
笈田 将皇  岡山大学, ヘルスシステム統合科学研究科, 准教授 (10380023)
Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2021: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
KeywordsBNCT / マルチリーフコリメータ / モンテカルロシミュレーション / 中性子計測 / 医学物理学 / 中性子捕捉療法 / ビーム制御 / 患者個別最適化
Outline of Research at the Start

ホウ素中性子補足療法 (Boron Neutron Capture Therapy: BNCT) は,体外から照射する中性子ビームと,腫瘍に集積させたホウ素製剤の核反応を利用し,選択的に腫瘍細胞を死滅させる革新的がん治療法である.しかし症例によって周囲組織の耐用線量が超過し十分な治療が行えない場合や,ホウ素製剤が腫瘍内へ十分に集積しない又は集積に斑が出る場合があり課題である.本研究においては,これらの課題を解決するために,中性子ビーム内の強度を任意に変調するシステムを開発し,患者個別に線量分布の最適化が行えるシステムの確立を目指す.

Outline of Final Research Achievements

The purpose of this study was to apply the multi-leaf collimator (MLC) technology established in the field of X-ray radiation therapy to boron neutron capture therapy (BNCT), to propose a next-generation BNCT, “Intensity Modulated BNCT,” and to investigate its usefulness. In this study, we have conducted simulations to examine for an optimal MLC, and have confirmed that the neutron beam characteristics change significantly depending on the shape, material, and position of the MLC and that the neutron flux distribution can be modulated by combining multiple MLC patterns.

Academic Significance and Societal Importance of the Research Achievements

これまでBNCTは、一様な中性子ビームを患部に照射する方法が主であった。本研究で提案した強度変調BNCTは、患者の解剖学的条件 (腫瘍の形状、大きさ、深さ、部位、周囲正常組織との関係など) や、ホウ素製剤の集積に応じ、MLCの開口形状を変化させビームを積算することで、患者個別に線量分布を向上できる可能性がある新しい技術である。本技術の確立に向けて解決すべき課題はあるが、本技術は最終的にBNCTの治療効果向上と有害事象低減、さらにBNCTの適応拡大に貢献できるものと考えている。

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

    (36 results)

All 2024 2023 2022 2021 2020

All Journal Article (17 results) (of which Peer Reviewed: 17 results,  Open Access: 12 results) Presentation (19 results) (of which Int'l Joint Research: 3 results,  Invited: 4 results)

  • [Journal Article] Comparative analysis of two dose-volume histogram prediction tools for treatment planning in volumetric-modulated arc therapy: A multi-planner study2024

    • Author(s)
      Sasaki Motoharu、Nakaguchi Yuji、Kamomae Takeshi、Tsuzuki Akira、Sawada Soma、Shibuya Koki、Oita Masataka、Tominaga Masahide、Tominaga Yuki、Ikushima Hitoshi
    • Journal Title

      Medical Dosimetry

      Volume: - Issue: 3 Pages: 271-275

    • DOI

      10.1016/j.meddos.2024.02.002

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Local control failure after five-fraction stereotactic radiosurgery alone for symptomatic brain metastasis from squamous cell lung carcinoma despite 43 Gy to gross tumor margin with internal steep dose increase and tumor shrinkage during irradiation.2023

    • Author(s)
      Kazuhiro Ohtakara, Kuniaki Tanahashi, Takeshi Kamomae, Eiji Ito, Kojiro Suzuki
    • Journal Title

      Cureus

      Volume: 15

    • DOI

      10.7759/cureus.38645

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 5-fraction re-radiosurgery for progression following 8-fraction radiosurgery of brain metastases from lung adenocarcinoma: importance of gross tumor coverage with biologically effective dose ≧80 Gy and internal dose increase.2023

    • Author(s)
      Kazuhiro Ohtakara, Kuniaki Tanahashi, Takeshi Kamomae, Kojiro Suzuki
    • Journal Title

      Cureus

      Volume: 15

    • DOI

      10.7759/cureus.42299

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Urethral identification using three-dimensional magnetic resonance imaging and interfraction urethral motion evaluation for prostate stereotactic body radiotherapy2023

    • Author(s)
      Yutaka Kato, Shintaro Okumiya, Kuniyasu Okudaira, Junji Ito, Motoki Kumagai, Takeshi Kamomae, Yumiko Noguchi, Mariko Kawamura, Shunichi Ishihara, Shinji Naganawa
    • Journal Title

      Nagoya Journal of Medical Science

      Volume: 85 Issue: 3 Pages: 504-517

    • DOI

      10.18999/nagjms.85.3.504

    • ISSN
      0027-7622
    • URL

      https://nagoya.repo.nii.ac.jp/records/2007129

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Differences between professionals in treatment planning for patients with stage III lung cancer using treatment-planning QA software2023

    • Author(s)
      Sato Daisuke、Sasaki Motoharu、Nakaguchi Yuji、Kamomae Takeshi、Kawanaka Takashi、Kubo Akiko、Tonoiso Chisato、Kanazawa Yuki、Oita Masataka、Kajino Akimi、Tsuzuki Akira、Ikushima Hitoshi
    • Journal Title

      Reports of Practical Oncology and Radiotherapy

      Volume: 28(5) Pages: 671-680

    • DOI

      10.5603/rpor.97511

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Knowledge-based model building for treatment planning for prostate cancer using commercial treatment planning quality assurance software tools2023

    • Author(s)
      Masumoto Nagi、Sasaki Motoharu、Nakaguchi Yuji、Kamomae Takeshi、Kanazawa Yuki、Ikushima Hitoshi
    • Journal Title

      Radiological Physics and Technology

      Volume: 17 Issue: 1 Pages: 337-345

    • DOI

      10.1007/s12194-023-00759-6

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Revolutionizing radiation therapy: the role of AI in clinical practice2023

    • Author(s)
      Kawamura Mariko、Kamomae Takeshi、Yanagawa Masahiro、Kamagata Koji、Fujita Shohei、Ueda Daiju、Matsui Yusuke、Fushimi Yasutaka、Fujioka Tomoyuki、Nozaki Taiki、Yamada Akira、Hirata Kenji、Ito Rintaro、Fujima Noriyuki、Tatsugami Fuminari、Nakaura Takeshi、Tsuboyama Takahiro、Naganawa Shinji
    • Journal Title

      Journal of Radiation Research

      Volume: 65 Issue: 1 Pages: 1-9

    • DOI

      10.1093/jrr/rrad090

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Stereotactic radiotherapy for ventricular tachycardia: A study protocol2023

    • Author(s)
      Kawamura Mariko、Shimojo Masafumi、Inden Yasuya、Kamomae Takeshi、Okudaira Kuniyasu、Komada Tomohiro、Aoki Sumire、Shindo Yurika、Yasui Ryotaro、Yanagi Yusuke、Okumura Masayuki、Yamada Takehiro、Kozai Yuka、Oie Yumi、Kato Yutaka、Ishihara Shunichi、Murohara Toyoaki、Naganawa Shinji
    • Journal Title

      F1000Research

      Volume: 12 Pages: 798-798

    • DOI

      10.12688/f1000research.138758.2

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Development of a high‐resolution two‐dimensional detector‐based dose verification system for tumor‐tracking irradiation in the CyberKnife system2022

    • Author(s)
      Kawabata Fumitaka、Kamomae Takeshi、Okudaira Kuniyasu、Komori Masataka、Oguchi Hiroshi、Sasaki Motoharu、Mori Masaki、Kawamura Mariko、Abe Shinji、Ishihara Shunichi、Naganawa Shinji
    • Journal Title

      Journal of Applied Clinical Medical Physics

      Volume: 23 Issue: 8

    • DOI

      10.1002/acm2.13645

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Embolization using patient-specific vascular models created by a 3D printer for difficult cases: A report of two cases2022

    • Author(s)
      Tomohiro Komada, Takeshi Kamomae, Masaya Matsushima, Ryota Hyodo, Shinji Naganawa
    • Journal Title

      Nagoya Journal of Medical Science

      Volume: 84 Pages: 477-483

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Evaluation of system-related magnetic resonance imaging geometric distortion in radiation therapy treatment planning: two approaches and effectiveness of three-dimensional distortion correction2022

    • Author(s)
      Yutaka Kato, Kuniyasu Okudaira, Takeshi Kamomae, Motoki Kumagai, Youta Nagai, Toshiaki Taoka, Yoshiyuki Itoh, Shinji Naganawa
    • Journal Title

      Nagoya Journal of Medical Science

      Volume: 84 Pages: 29-41

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Hybrid 3D T1-weighted gradient-echo sequence for fiducial marker detection and tumor delineation via magnetic resonance imaging in liver stereotactic body radiation therapy2022

    • Author(s)
      Kato Yutaka、Kamomae Takeshi、Kumagai Motoki、Oie Yumi、Noguchi Yumiko、Okudaira Kuniyasu、Kawamura Mariko、Taoka Toshiaki、Naganawa Shinji
    • Journal Title

      Physica Medica

      Volume: 95 Pages: 9-15

    • DOI

      10.1016/j.ejmp.2022.01.003

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Dosimetric impacts of beam-hardening filter removal for the CyberKnife system2021

    • Author(s)
      Takeshi Kamomae, Takuma Matsunaga, Junji Suzuki, Kuniyasu Okudaira, Fumitaka Kawabata, Yutaka Kato, Hiroshi Oguchi, Morihito Shimizu, Motoharu Sasaki, Yuki Takase, Mariko Kawamura, Kazuhiro Ohtakara, Yoshiyuki Itoh, Shinji Naganawa
    • Journal Title

      Phys Med

      Volume: 86 Pages: 98-105

    • DOI

      10.1016/j.ejmp.2021.05.011

    • NAID

      120007183206

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Development of an x-ray-opaque-marker system for quantitative phantom positioning in patient-specific quality assurance2021

    • Author(s)
      Kentaro Suzuki, Takeshi Kamomae, Hiroshi Oguchi, Fumitaka Kawabata, Kazuma Sugita, Kuniyasu Okudaira, Masaki Mori, Shinji Abe, Masataka Komori, Mariko Kawamura, Kazuhiro Ohtakara, Yoshiyuki Itoh, Shinji Naganawa
    • Journal Title

      Phys Med

      Volume: 91 Pages: 121-130

    • DOI

      10.1016/j.ejmp.2021.10.017

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Analysis of prostate intensity‐ and volumetric‐modulated arc radiation therapy planning quality with PlanIQ TM2021

    • Author(s)
      Sasaki Motoharu、Nakaguuchi Yuji、Kamomae Takeshi、Tsuzuki Akira、Kobuchi Satoshi、Kuwahara Kenmei、Ueda Shoji、Endo Yuto、Ikushima Hitoshi
    • Journal Title

      Journal of Applied Clinical Medical Physics

      Volume: 22 Issue: 4 Pages: 132-142

    • DOI

      10.1002/acm2.13233

    • NAID

      120007164924

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Feasibility of using tungsten functional paper as a thin bolus for electron beam radiotherapy2020

    • Author(s)
      Takei Yoshiki、Kamomae Takeshi、Monzen Hajime、Nakaya Takayoshi、Sugita Kazuma、Suzuki Kentaro、Oguchi Hiroshi、Tamura Mikoto、Nishimura Yasumasa
    • Journal Title

      Physical and Engineering Sciences in Medicine

      Volume: 43 Issue: 3 Pages: 1101-1111

    • DOI

      10.1007/s13246-020-00910-2

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] A phase I/II trial of intraoperative breast radiotherapy in an Asian population: 10-year results with critical evaluation.2020

    • Author(s)
      Mariko Kawamura, Yoshiyuki Itoh, Takeshi Kamomae, Masataka Sawaki, Toyone Kikumori, Nobuyuki Tsunoda, Junji Ito, Yoshie Shimoyama, Hiroko Satake, Shinji Naganawa
    • Journal Title

      J Radiat Res .

      Volume: 61(4) Issue: 4 Pages: 602-607

    • DOI

      10.1093/jrr/rraa029

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 脳外科領域の放射線治療物理2023

    • Author(s)
      加茂前健
    • Organizer
      Accuray / Brainlab Symposium Cranial
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 難治性不整脈に対する定位放射線治療に向けた心臓動体ファントムの開発と基礎的評価2023

    • Author(s)
      宮地貴之,加茂前健,川端文隆,奥平訓康,川村麻里子,石原俊一,長縄慎二
    • Organizer
      日本放射線腫瘍学会第36回学術大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 脳定位放射線治療における原体照射とガントリー・リング2軸同時回転IMRTの線量特性の比較2023

    • Author(s)
      谷口裕輝, 加茂前健, 寺部充昭, 島田秀樹
    • Organizer
      第15回中部放射線医療技術学術大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] IMRT物理技術ガイドライン2023における主な変更点の解説2023

    • Author(s)
      加茂前健
    • Organizer
      第60回放射線治療セミナー
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] I-125シード線源バッチ測定に向けた補正係数の導出2022

    • Author(s)
      村松海飛, 加茂前健, 小口宏, 末澤正太郎, 奥平訓康, 矢谷朋子, 森政樹, 阿部真治, 石原俊一, 長縄慎二
    • Organizer
      第124回日本医学物理学会学術大会
    • Related Report
      2022 Research-status Report
  • [Presentation] 前立腺がん永久刺入治療用I-125シードに対するバッチアッセイに向けた基礎検討2021

    • Author(s)
      末澤正太郎、奥平訓康、加茂前健、森政樹、阿部真治
    • Organizer
      日本放射線腫瘍学会小線源治療部会第23回学術大会
    • Related Report
      2021 Research-status Report
  • [Presentation] ヨウ素125シード線源の線源強度計測2021

    • Author(s)
      加茂前健、奥平訓康、末澤正太郎、伊藤淳二、 髙瀬裕樹、奥村真之、川村麻里子、伊藤善之、長縄慎二
    • Organizer
      日本放射線腫瘍学会小線源治療部会第23回学術大会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Dose perturbation effect of titanium implant in post-operative proton therapy of head and neck cancer2021

    • Author(s)
      Masashi Tomida, Takeshi Kamomae, Teiji Nishio, Takeshi Yanagi
    • Organizer
      Particle Therapy Co-Operative Group (PTCOG) 59
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 10個程度までの複数脳転移に対する新たなサイバーナイフ治療戦略 -IrisコリメータとVOLO最適化を用いたプランニングのTipsを交えて-2021

    • Author(s)
      加茂前健
    • Organizer
      第30回日本定位放射線治療学会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Use of 3D printer to Create a Electron Shielding Block with Tungsten-containing Thermoplastic Rubber2021

    • Author(s)
      Kazuma Sugita, Takeshi Kamomae, Hajime Monzen, Takayoshi Nakaya, Kuniyasu Okudaira, Mori Masaki, Shinji Abe
    • Organizer
      第49回日本放射線技術学会秋季学術大会
    • Related Report
      2021 Research-status Report
  • [Presentation] Development of novel x-ray-opaque-marker system for improvement and quantification of phantom positioning accuracy in patient-specific quality assurance2020

    • Author(s)
      Kentaro Suzuki, Takeshi Kamomae, Hiroshi Oguchi, Fumitaka Kawabata, Kazuma Sugita, Kuniyasu Okudaira, Kazuhiro Ohtakara, Yoshiyuki Itoh
    • Organizer
      20th Asia-Oceania Congress on Medical Physics
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] サイバーナイフにおける小照射野用二次元検出器を基にした動体追尾線量検証法の確立2020

    • Author(s)
      川端文隆, 加茂前健, 奥平訓康, 森政樹, 阿部真治
    • Organizer
      日本放射線腫瘍学会第33回学術大会
    • Related Report
      2020 Research-status Report
  • [Presentation] 5から10個の脳転移に対するCyberknife治療における単一計画での同時照射方の有用性2020

    • Author(s)
      大宝和博, 熊谷始紀, 髙瀬裕樹, 伊藤淳二, 棚橋邦明, 大岡史治, 加茂前健, 伊藤善之, 長縄慎二
    • Organizer
      日本放射線腫瘍学会第33回学術大会
    • Related Report
      2020 Research-status Report
  • [Presentation] Quantitative evaluation of distortion in magnetic resonance imaging for radiation treatment planning: Characterization of system-related geometric distortion and effectiveness of distortion correction2020

    • Author(s)
      Yutaka Kato, Kuniyasu Okudaira, Motoki kumagai, Toshiaki Taoka, Takeshi Kamomae, Yoshiyuki Itoh, Sinji Naganawa
    • Organizer
      European Congress of Radiology (ECR) 2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Novel Evaluation Method for MRI System-related Geometric Distortions in Radiation Therapy Planning2020

    • Author(s)
      Youta Nagai, Kuniyasu Okudaira, Yutaka Kato, Motoki Kumagai, Takeshi Kamomae, Yoshikazu Miyake, Shinji Abe
    • Organizer
      The 76th Annual Meeting of the Japanese Society of Radiological Technology
    • Related Report
      2020 Research-status Report
  • [Presentation] Usefulness of High Resolution 2D Array Detector for Small Fields in CyberKnife system2020

    • Author(s)
      Natsuki Furutate, Takeshi Kamomae, Fumitaka Kawabata, Kuniyasu Okudaira, Yoshikazu Miyake, Shinji Abe
    • Organizer
      The 76th Annual Meeting of the Japanese Society of Radiological Technology
    • Related Report
      2020 Research-status Report
  • [Presentation] Evaluation of Tungsten-containing Thermoplastic Rubber in Electron Beam Therapy2020

    • Author(s)
      Kazuma Sugita, Takeshi Kamomae, Hajime Monzen, Takayoshi Nakaya, Kuniyasu Okudaira, Yoshikazu Miyake, Mariko Kawamura, Kazuhiro Ootakara, Shinji Abe, Yoshiyuki Itoh
    • Organizer
      The 76th Annual Meeting of the Japanese Society of Radiological Technology
    • Related Report
      2020 Research-status Report
  • [Presentation] Evaluation of Electron Density Based-CT Image in Proton Therapy2020

    • Author(s)
      Rie Muramatsu, Keisuke Yasui, Takeshi Kamomae, Toshiyuki Toshito, Fumitaka Kawabata, Akira Shimomura
    • Organizer
      The 76th Annual Meeting of the Japanese Society of Radiological Technology
    • Related Report
      2020 Research-status Report
  • [Presentation] Analysis of MRI Machine-Dependent Geometric Distortions in Radiotherapy Treatment Planning2020

    • Author(s)
      Kuniyasu Okudaira, Motoki Kumagai, Yutaka Kato, Takeshi Kamomae, Yoshikazu Miyake, Shinji Abe
    • Organizer
      The 76th Annual Meeting of the Japanese Society of Radiological Technology
    • Related Report
      2020 Research-status Report

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

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