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Development of optimal interstitial brachytherapy for image guided brachytherapy of uterin cervix cancer.

Research Project

Project/Area Number 17K10488
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Radiation science
Research InstitutionKyoto Prefectural University of Medicine

Principal Investigator

Yamazaki Hideya  京都府立医科大学, 医学(系)研究科(研究院), 教授 (50301263)

Co-Investigator(Kenkyū-buntansha) 古妻 理之  独立行政法人国立病院機構大阪医療センター(臨床研究センター), その他部局等, 機関長・部門長クラス (00641870)
吉田 謙  関西医科大学, 医学部, 准教授 (10463291)
酒井 晃二  京都府立医科大学, 医学(系)研究科(研究院), 准教授 (20379027)
増井 浩二  京都府立医科大学, 医学(系)研究科(研究院), 助教 (20783830)
鈴木 弦  京都府立医科大学, 医学(系)研究科(研究院), 准教授 (80279182)
武中 正  京都府立医科大学, 医学(系)研究科(研究院), 助教 (80626771)
清水 大介  京都府立医科大学, 医学(系)研究科(研究院), 客員講師 (70453107)
Project Period (FY) 2017-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords放射線治療 / 子宮頸部癌 / 画像誘導小線源治療 / 組織内照射 / 子宮頸癌 / 腔内照射 / MRI / 子宮頚癌 / 放射線
Outline of Final Research Achievements

Eighteen patients with stage IIB-IVB cervical cancer (squamous cell carcinoma) were treated with simultaneous chemoradiotherapy using CT-MRI guided multi-catheter interstitial radiation (interstitial bradchytherpy; ISBT) (4 stage II, 7 stage III, 7 stage IV). 4-year local control rate was 100%, pelvic control rate was 100%, disease-free survival rate was 81.6%, and overall survival rate was 87.8%. Grade 3 late adverse events occurred in 3 patients (16.7%), but there were no ISBT-related late adverse events. ISBT can reduce adverse events by reducing bladder and rectal doses and to improve tumor control for large tumors (especially those larger than 4 cm in diameter).

Academic Significance and Societal Importance of the Research Achievements

子宮頸がんの放射線治療はA点線量処方の2次元治療時代からCTを用いた体積線量処方、さらにMRI画像を用いた画像誘導小線源治療時代へと過渡期にある。我々の研究成果により、従来の腔内照射にMRIを用いた3次元治療計画を用いた組織内照射を加える事の利点:有害事象軽減や腫瘍制御率向上の可能性が示唆された。今後どこの施設でも簡便に組織内照射が可能となるような安全・簡便な手技の普及が期待される。

Report

(7 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (9 results)

All 2022 2021 2020 2019 2018

All Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (5 results)

  • [Journal Article] 3D-Image-Guided Multi-Catheter Interstitial Brachytherapy for Bulky and High-Risk Stage IIB-IVB Cervical Cancer2022

    • Author(s)
      Kokabu T, Masui K, Tarumi Y, Noguchi N, Aoyama K, Kataoka H, Matsushima H, Yoriki K, Simizu D, Yamazaki H, Yamada K, Mori T
    • Journal Title

      Cancers

      Volume: 14(5) Issue: 5 Pages: 1257-1257

    • DOI

      10.3390/cancers14051257

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A national surveillance study of the current status of reirradiation using brachytherapy in Japan2021

    • Author(s)
      Yamazaki Hideya、Masui Koji、Shimizu Daisuke、Suzuki Gen、Isohashi Fumiaki、yoshida Ken
    • Journal Title

      Brachytherapy

      Volume: 20 Issue: 1 Pages: 226-231

    • DOI

      10.1016/j.brachy.2020.07.007

    • Related Report
      2020 Research-status Report
  • [Journal Article] Small bowel perforation caused by applicator implantation in high-dose-rate interstitial brachytherapy for recurrent pelvic tumor: a case report2020

    • Author(s)
      Masui Koji、Yamazaki Hideya、Suzuki Gen、Shimizu Daisuke、Takenaka Tadashi、Yamada Yasuhiro、Okihara Koji、Kuriu Yoshiaki、Yamada Kei
    • Journal Title

      Journal of Contemporary Brachytherapy

      Volume: 12 Issue: 2 Pages: 188-192

    • DOI

      10.5114/jcb.2020.93875

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Single-fraction image-guided high-dose-rate brachytherapy for head and neck cancer: three cases of palliative brachytherapy2020

    • Author(s)
      Ota Yoshiaki、Masui Koji、Suzuki Gen、Yamazaki Hideya、Yamada Kei
    • Journal Title

      Journal of Contemporary Brachytherapy

      Volume: 12 Issue: 3 Pages: 273-278

    • DOI

      10.5114/jcb.2020.96870

    • Related Report
      2020 Research-status Report
  • [Presentation] 局所進行子宮頸癌に対するCT/MRI画像誘導小線源療法の治療効果についての検討2019

    • Author(s)
      松島 洋,森 泰輔, 古株 哲也, 寄木 香織, 山本 拓郎, 黒星 晴夫, 増井 浩二, 山崎 秀哉, 北脇 城
    • Organizer
      日本婦人科腫瘍学会
    • Related Report
      2019 Research-status Report
  • [Presentation] 骨盤内腫瘤に対してCTガイド下穿刺を用いて高線量率組織内照射を行った6症例の検討2019

    • Author(s)
      野口 直希, 増井 浩二, 三浦 寛司, 廣田 達哉, 山崎 秀哉
    • Organizer
      日本インターベンショナルラジオロジー学会
    • Related Report
      2019 Research-status Report
  • [Presentation] 原発性子宮頸癌に対する CT-MRI 画像誘導小線源治療成績2019

    • Author(s)
      清水大介、増井浩二、黒星晴夫、森泰輔、古谷誠一、大久保智治、山崎秀哉、山田惠
    • Organizer
      放射線腫瘍学会小線源部会
    • Related Report
      2019 Research-status Report
  • [Presentation] MRIを用いた新鮮子宮頸癌の画像誘導高線量率小線源治療(3D-IGBT)の多施設共同研究 : 最適な組織内照射併用方法の開発2018

    • Author(s)
      山崎 秀哉、 増井 浩二、 吉田 謙、古妻 理之
    • Organizer
      マイクロセレクトロンHDR研究会
    • Related Report
      2018 Research-status Report
  • [Presentation] 当院における子宮頚癌に対するCT-MRI画像誘導小線源治療成績2018

    • Author(s)
      清水大介、増井浩二、黒星晴夫、森泰輔、大久保智治、古谷誠一、藤田宏行、小谷直広、山崎秀哉、山田惠
    • Organizer
      小線源治療部会
    • Related Report
      2018 Research-status Report

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Published: 2017-04-28   Modified: 2024-01-30  

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