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Hemostasis irradiation for advanced gastric cancer: elucidation of prognostic factors using a multifaceted approach

Research Project

Project/Area Number 22K07678
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 InstitutionAsahi University

Principal Investigator

Tanaka Osamu  朝日大学, 歯学部, 准教授 (60402202)

Co-Investigator(Kenkyū-buntansha) 松尾 政之  岐阜大学, 大学院医学系研究科, 教授 (40377669)
石橋 浩晃  朝日大学, 歯学部, 准教授 (90254630)
Project Period (FY) 2022-04-01 – 2025-03-31
Project Status Completed (Fiscal Year 2024)
Budget Amount *help
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2024: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2023: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2022: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywords放射線治療 / 緩和医療 / 止血 / 胃癌 / MRI / 遺伝子
Outline of Research at the Start

胃癌は日本人において非常に罹患率の高い疾患です。手術がメインの治療方法になりますが、発見時に手術不適合の患者がいます。その場合、化学療法が選択されます。
しかしながら化学療法ができない症例、出血や通過障害のため生活の質が下がっている状態、このような場合に局所治療として放射線治療が奏効する場合があります。今後、高齢化にしたがいこのような症例は増加してくると考えられます。
これまでに止血照射野有効性は認められましたが、予後の予測およびその予測因子まで解析した研究は無いです。この研究はそれを突き止めるための研究になります。

Outline of Final Research Achievements

gastrointestinal-adjacent organs such as the stomach, pancreas, and liver.
① Regarding hemostatic radiotherapy for gastric cancer, there had been insufficient evidence to date. However, our prospective study demonstrated a high hemostatic response rate of 80% (Tanaka et al., 2020). Additionally, we identified an alternative method for evaluating treatment efficacy using MRI instead of endoscopy, offering a less invasive follow-up option for patients.
② In radiation therapy for pancreatic cancer, gastric irradiation is a concern due to the proximity of the stomach. Our findings revealed that the risk of radiation-induced gastritis varies depending on the stomach's condition, with fasting state reducing gastric exposure and potentially mitigating adverse effects.

Academic Significance and Societal Importance of the Research Achievements

これまで緩和ケアの範疇にとどまっていた末期胃癌に対し、放射線治療という非侵襲的手段によって出血などの重篤な症状を効果的に緩和できることを実証し、患者の生活の質(QoL)を大きく向上させる道を切り拓いた点にある。とくに、奏効率80%という高い止血効果と、内視鏡を用いないMRIによるフォローアップ技術は、治療の安全性と患者負担の軽減を両立させており、高齢者や全身状態の不良な患者にとっても有用な選択肢となる。これまで治療困難とされてきた部位への対応可能性が拡大した。本研究は、終末期がん患者の尊厳を保ちつつ、実際的かつ効果的な医療提供を可能にするという観点から、極めて重要な意義を有する。

Report

(4 results)
  • 2024 Annual Research Report   Final Research Report ( PDF )
  • 2023 Research-status Report
  • 2022 Research-status Report
  • Research Products

    (50 results)

All 2025 2024 2023 2022

All Journal Article (7 results) (of which Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (43 results) (of which Int'l Joint Research: 19 results)

  • [Journal Article] CT-like MR images to assess changes after radiotherapy for bone metastasis: a case report2025

    • Author(s)
      Tanaka Osamu、Taniguchi Takuya、Kiryu Takuji、Maejima Ryoshu、Makita Chiyoko、Matsuo Masayuki
    • Journal Title

      BJR|Case Reports

      Volume: 11 Issue: 2

    • DOI

      10.1093/bjrcr/uaaf018

    • Related Report
      2024 Annual Research Report
  • [Journal Article] Hemostatic palliative radiotherapy for gastric cancer: A literature review2024

    • Author(s)
      Tanaka Osamu
    • Journal Title

      Technical Innovations & Patient Support in Radiation Oncology

      Volume: 31 Pages: 100266-100266

    • DOI

      10.1016/j.tipsro.2024.100266

    • Related Report
      2024 Annual Research Report
  • [Journal Article] Hemostatic Radiotherapy for Gastric Cancer: Relationship Between Diffusion-Weighted Magnetic Resonance Images and Tumor Markers2024

    • Author(s)
      Tanaka Osamu、Yagi Nobuaki、Tawada Masahiro、Taniguchi Takuya、Ono Kousei、Nakaya Shuto、Makita Chiyoko、Matsuo Masayuki
    • Journal Title

      Radiology Case Reports

      Volume: 17 Pages: 13-18

    • DOI

      10.21203/rs.3.rs-1304780/v1

    • Related Report
      2024 Annual Research Report
  • [Journal Article] Hemostasis radiotherapy for gastric cancer: Usefulness of the gastric cancer to spleen apparent diffusion coefficient ratio2024

    • Author(s)
      Tanaka Osamu、Matsushita Tomomichi、Maejima Ryoshu、Kariya Shuji、Taniguchi Takuya、Ono Kousei、Makita Chiyoko、Matsuo Masayuki
    • Journal Title

      Radiology Case Reports

      Volume: 17 Issue: 1 Pages: 13-18

    • DOI

      10.1016/j.radcr.2021.09.068

    • Related Report
      2024 Annual Research Report 2023 Research-status Report 2022 Research-status Report
  • [Journal Article] Stereotactic body radiation therapy to the spine: contouring the cauda equina instead of the spinal cord is more practical as the organ at risk2023

    • Author(s)
      Osamu Tanaka , Takuya Taniguchi , Shuto Nakaya , Kousei Adachi , Takuji Kiryu , Chiyoko Makita , Masayuki Matsuo
    • Journal Title

      Reports of Practical Oncology and Radiotherapy

      Volume: 28 Issue: 3 Pages: 406-414

    • DOI

      10.5603/rpor.a2023.0040

    • Related Report
      2024 Annual Research Report 2023 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Hemostatic Radiotherapy for Gastric Cancer MRI Alternative toEndoscopyTreatment Evaluation2023

    • Author(s)
      OsamuTanaka, Nobuaki, MasahiroTawada, TakuyaTaniguchi, Kousei Adachi, ShutoNakaya, ChiyokoMakita, Masayuki Matsuo
    • Journal Title

      Journal of Gastrointestinal Cancer

      Volume: - Issue: 2 Pages: 554-563

    • DOI

      10.1007/s12029-022-00837-9

    • Related Report
      2024 Annual Research Report 2023 Research-status Report 2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effect of stomach size on organs at risk in pancreatic stereotactic body radiotherapy2023

    • Author(s)
      Osamu Tanaka, Takuya Taniguchi, Kousei Adachi, Shuto Nakaya, Takuji Kiryu, Akira Ukai, Chiyoko Makita, Masayuki Matsuo
    • Journal Title

      Radiation Oncology

      Volume: 17 Issue: 1 Pages: 136-136

    • DOI

      10.1186/s13014-022-02107-1

    • Related Report
      2023 Research-status Report 2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 肝細胞癌に対する肝機能SPECT画像を併用した定位放射線治療計画の有用性2024

    • Author(s)
      谷口拓矢, 足立光生, 中矢周人, 川口楓, 田中修, 松尾政之
    • Organizer
      第16回 中部放射線医療技術学術大会
    • Related Report
      2024 Annual Research Report
  • [Presentation] CT-like MRI based on T1 spoiled gradient-echo for the assessment of images before and after radiotherapy for bone metastasis: a case report2024

    • Author(s)
      Osamu Tanaka
    • Organizer
      The 4th International Congress of the Asian Oncology Society
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 骨転移に対して照射後のMRI画像の変化:CT-like MRI撮像の有用性.2024

    • Author(s)
      田中修, 前島亮秀, 谷口拓矢, 桐生拓司, 牧田智誉子, 松尾 政之
    • Organizer
      日本放射線腫瘍学会学術大会
    • Related Report
      2024 Annual Research Report
  • [Presentation] IGRTにおけるCBCT画像を利用したradiomics解析の試み.2024

    • Author(s)
      谷口拓矢, 足立光生, 中矢周人, 髙島安衣, 須田翔太, 田中修, 松尾政之
    • Organizer
      日本放射線腫瘍学会学術大会
    • Related Report
      2024 Annual Research Report
  • [Presentation] Spatiotemporal Evaluation of the Early Inflammatory Response of the Gut to Radiation Using Non-Invasive In Vivo Redox Imaging.2024

    • Author(s)
      Adachi K., Hyodo F., A. E. Elhelaly, Mori T., Mori T., Taniguchi T., Nakaya S., Matsuo M.
    • Organizer
      ASTRO Annual Meeting
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Hemostasis radiotherapy for inoperable gastric cancer: A prospective phase 2 study.2024

    • Author(s)
      Tanaka O., Taniguchi T., Kiryu T., Adachi K., Makita C., Matsuo M.
    • Organizer
      MASCC/AFSOS/ISOO ANNUAL MEETING
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Evaluation of liver functions after liver radiotherapy using blood tests and imaging examinations.2024

    • Author(s)
      Tanaka O., Kiryu T., Kojima T., Ohbora A., Taniguchi T., Suzuki M., Makita C., Matsuo M.
    • Organizer
      APASL2024
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 放射線治療を受ける患者の経済毒性 コロナ時代以前のパイロットスタディ2024

    • Author(s)
      牧田 智誉子, 森 貴之, 高野 宏太, 伊東 政也, 熊野 智康, 松尾 政之, 岡田 すなほ, 田中 修, 梶浦 雄一, 永田 知里
    • Organizer
      日本医学放射線学会総会
    • Related Report
      2024 Annual Research Report
  • [Presentation] 喉頭癌の放射線治療症例における重複癌が予後に及ぼす影響2024

    • Author(s)
      山田 菜生, 牧田 智誉子, 森 貴之, 高野 宏太, 熊野 智康, 松尾 政之, 岡田 すなほ, 梶浦 雄一, 田中 修
    • Organizer
      日本医学放射線学会総会
    • Related Report
      2024 Annual Research Report
  • [Presentation] 胃がんに対する止血照射:レビュー2024

    • Author(s)
      田中修, 谷口拓矢, 足立光生, 牧田智誉子, 松尾政之
    • Organizer
      第36回日本放射線腫瘍学会学術大会
    • Related Report
      2024 Annual Research Report
  • [Presentation] 治療計画CTにおける画像再構成関数がradiomics解析に及ぼす影響.2024

    • Author(s)
      谷口拓矢, 足立光生, 中矢周人, 田中修, 兵藤文紀, 松尾政之
    • Organizer
      第36回日本放射線腫瘍学会総会
    • Related Report
      2024 Annual Research Report
  • [Presentation] Fusion画像を用いた輪郭描出におけるMisregistrationについて2024

    • Author(s)
      中矢周人, 谷口拓矢, 足立光生, 伊藤千明, 田中修
    • Organizer
      第38回岐阜県病院協会医学会
    • Related Report
      2024 Annual Research Report
  • [Presentation] Hemostatic palliative radiotherapy for gastric cancer: A literature review.2024

    • Author(s)
      Osamu Tanaka
    • Organizer
      The 3rd International Congress of the Asian Oncology Society
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Evaluation of Liver Functionality after Liver Stereotactic Body Radiation Therapy (SBRT) Using Blood Tests and Imaging Examinations2024

    • Author(s)
      Tanaka O., Taniguchi T., Ono K., Kiryu T., Makita C., Matsuo M.
    • Organizer
      ASTRO Annual meeting.
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Lens Dose Reduction in Image-Guided Radiation Therapy Using Cone Beam Computed Tomography2024

    • Author(s)
      Taniguchi T., Adachi K., Nakaya S., Asahi R., Tanaka O., Matsuo M.
    • Organizer
      Health physics society 68th Annual Meeting
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Contrast-enhanced dual-energy computed tomography for detection of oral cancer.2024

    • Author(s)
      Tanaka O., Taniguchi T., Ono K., Kiryu T., Makita C., Matsuo M.
    • Organizer
      7th World Congress of the International Federation of Head and Neck Oncologic Societies
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 乳がん放射線治療における深吸気息止め照射の実践と精度管理2024

    • Author(s)
      足立光生, 足立光生, 谷口拓矢, 中矢周人, 白木勝彦, 伊藤有紀, 朝日理紗, 田中修, 松尾政之
    • Organizer
      Gifu Journal of Radiological Technologists
    • Related Report
      2024 Annual Research Report
  • [Presentation] Usefulness of 3D noise reduction filter for adaptive radiotherapy planning using cone beam CT images2024

    • Author(s)
      Taniguchi T., Adachi K., Nakaya S., Asahi R., Tanaka O., Hyodo F., Matsuo M.
    • Organizer
      22nd Asia-Oceania Congress on Medical Physics
    • Related Report
      2024 Annual Research Report
  • [Presentation] 3次元ノイズフィルタを用いたCBCT画像による線量計算精度への影響2024

    • Author(s)
      谷口拓矢, 足立光生, 中矢周人, 田中修, 兵藤文紀, 松尾政之
    • Organizer
      第35回日本放射線腫瘍学会学術大会
    • Related Report
      2024 Annual Research Report
  • [Presentation] 画像誘導放射線治療に用いるX線撮影システムの画質管理の重要性2024

    • Author(s)
      足立光生, 谷口拓矢, 中矢周人, 朝日梨紗, 松尾政之, 兵藤文紀, 田中修
    • Organizer
      第37回岐阜県病院協会医学会
    • Related Report
      2024 Annual Research Report
  • [Presentation] Logfile解析によるVMATの線量分布再現性の評価2024

    • Author(s)
      中矢 周人, 下郷 智弘, 谷口 拓矢, 足立 光生, 田中 修
    • Organizer
      日本放射線技術学会雑誌
    • Related Report
      2024 Annual Research Report
  • [Presentation] Hemostatic Radiotherapy for Gastric Cancer: Relationship Between MR Images and Tumor Markers.2024

    • Author(s)
      Osamu Tanaka, Takuya Taniguchi, Kousei Ono, Chiyoko Makita, Masayuki Matsuo
    • Organizer
      ESTRO 2022
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effect of stomach size on organ at risk in pancreas stereotactic body radiotherapy2024

    • Author(s)
      Osamu Tanaka, Takuya Taniguchi, Kousei Ono, Chiyoko Makita, Masayuki Matsuo
    • Organizer
      The 2nd International Congress of the Asian Oncology Society
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 膵臓SBRTにおいて胃のサイズがOARに与える影響2024

    • Author(s)
      田中修, 谷口拓矢, 大野光生, 牧田智誉子, 松尾政之
    • Organizer
      第35回日本放射線腫瘍学会学術大会
    • Related Report
      2024 Annual Research Report
  • [Presentation] 胃がんに対する止血照射:治療後のMRIと腫瘍マーカーの関連性2024

    • Author(s)
      田中修, 谷口拓矢, 大野光生, 牧田智誉子, 松尾政之
    • Organizer
      第81回日本医学放射線学会
    • Related Report
      2024 Annual Research Report
  • [Presentation] 胃がんに対する止血照射:治療後のMRIと腫瘍マーカーの関連性2023

    • Author(s)
      田中修
    • Organizer
      日本医学放射線学会総会
    • Related Report
      2023 Research-status Report
  • [Presentation] 膵臓SBRTにおいて胃のサイズがOARに与える影響2023

    • Author(s)
      田中修
    • Organizer
      日本放射線学会学術大会
    • Related Report
      2023 Research-status Report
  • [Presentation] Logfile解析によるVMATの線量分布再現性の評価,2023

    • Author(s)
      中矢周人、田中修
    • Organizer
      日本放射線技術学会秋季学術大会
    • Related Report
      2023 Research-status Report
  • [Presentation] 画像誘導放射線治療に用いるX線撮影システムの画質管理の重要性2023

    • Author(s)
      足立光生、田中修
    • Organizer
      第37回岐阜県病院協会医学会
    • Related Report
      2023 Research-status Report
  • [Presentation] 3次元ノイズフィルタを用いたCBCT画像による線量計算精度への影響2023

    • Author(s)
      谷口拓矢、田中修
    • Organizer
      日本放射線腫瘍学会学術大会
    • Related Report
      2023 Research-status Report
  • [Presentation] Effect of stomach size on organ at risk in pancreas stereotactic body radiotherapy.2023

    • Author(s)
      Osamu Tanaka
    • Organizer
      Asian Oncology Society (AOS 2022, May, 13, Korea)
    • Related Report
      2023 Research-status Report
    • Int'l Joint Research
  • [Presentation] Hemostatic Radiotherapy for Gastric Cancer: Relationship Between MR Images and Tumor Markers2023

    • Author(s)
      Osamu Tanaka
    • Organizer
      European Society for Radiotherapy and Oncology (ESTRO 2022, May)
    • Related Report
      2023 Research-status Report
    • Int'l Joint Research
  • [Presentation] Usefulness of 3D noise reduction filter for adaptive radiotherapy planning using cone beam CT images,2023

    • Author(s)
      Takuya Taniguchi, Osamu Tanaka
    • Organizer
      22nd Asia-Oceania Congress on Medical Physics
    • Related Report
      2023 Research-status Report
    • Int'l Joint Research
  • [Presentation] Lens Dose Reduction in Image-Guided Radiation Therapy Using Cone Beam Computed Tomography2023

    • Author(s)
      Taniguchi T, Adachi K. Nakaya S, Asahi R, Tanaka O, Matsuo M
    • Organizer
      2023 Health physics society 68th Annual Meeting
    • Related Report
      2023 Research-status Report
    • Int'l Joint Research
  • [Presentation] Evaluation of Liver Functionality after Liver Stereotactic Body Radiation Therapy (SBRT) Using Blood Tests and Imaging Examinations2023

    • Author(s)
      Tanaka O, Taniguchi T, Ono K, Kiryu T, Makita C, and Matsuo M
    • Organizer
      2023 ASTRO Annual meeting
    • Related Report
      2023 Research-status Report
    • Int'l Joint Research
  • [Presentation] Monitoring of liver redox status after radiation using redox sensitive nitroxyl probe2023

    • Author(s)
      Adachi K, Hyodo F, Iwasaki R, Elhelaly A.E, Mori T, Takashi Mori T, Taniguchi T, Nakaya S, Matsuo M.
    • Organizer
      FARO & KOSRO 2023
    • Related Report
      2023 Research-status Report
    • Int'l Joint Research
  • [Presentation] Contrast-enhanced dual-energy computed tomography for detection of oral cancer2023

    • Author(s)
      Tanaka O, Taniguchi T, Ono K, Kiryu T, Makita C, and Matsuo M
    • Organizer
      7th World Congress of the International Federation of Head and Neck Oncologic Societies
    • Related Report
      2023 Research-status Report
    • Int'l Joint Research
  • [Presentation] Hemostatic palliative radiotherapy for gastric cancer: A literature review.2023

    • Author(s)
      Tanaka O, Taniguchi T, Ono K, Kiryu T, Makita C, and Matsuo M
    • Organizer
      The 3rd International Congress of the Asian Oncology Society
    • Related Report
      2023 Research-status Report
    • Int'l Joint Research
  • [Presentation] Fusion画像を用いた輪郭描出におけるMisregistrationについて2023

    • Author(s)
      中矢周人,谷口拓矢、足立光生、伊藤千明、田中修
    • Organizer
      第38回岐阜県病院協会医学会
    • Related Report
      2023 Research-status Report
  • [Presentation] 治療計画CTにおける画像再構成関数がradiomics解析に及ぼす影響2023

    • Author(s)
      谷口拓矢、足立光生、中矢周人、田中修、兵藤文紀、松尾政之
    • Organizer
      日本放射線腫瘍学会学術大会
    • Related Report
      2023 Research-status Report
  • [Presentation] 胃がんに対する止血照射:レビュー2023

    • Author(s)
      田中修、谷口拓矢、足立光生、牧田智誉子、松尾政之
    • Organizer
      日本放射線腫瘍学会学術大会
    • Related Report
      2023 Research-status Report
  • [Presentation] 「開業医の先生ががん性疼痛で困っていること」2023

    • Author(s)
      田中修
    • Organizer
      日本放射線腫瘍学会第36回学術大会:学会合同シンポジウム(日本緩和医療学会)
    • Related Report
      2023 Research-status Report
  • [Presentation] Hemostatic Radiotherapy for Gastric Cancer: Relationship Between MR Images and Tumor Markers.2022

    • Author(s)
      Tanaka O, Taniguchi T, Ono K, Nakaya S, Kiryu T, Makita C, Matsuo M
    • Organizer
      2022 Copenhagen ESTRO
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research

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Published: 2022-04-19   Modified: 2026-01-16  

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