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Development of an endoscopic diagnosis system for colorectal cancer using artificial intelligence

Research Project

Project/Area Number 21K07885
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 53010:Gastroenterology-related
Research InstitutionChiba University

Principal Investigator

Matsumura Tomoaki  千葉大学, 大学院医学研究院, 講師 (00514530)

Co-Investigator(Kenkyū-buntansha) 千葉 哲博  千葉大学, 大学院医学研究院, 講師 (00381583)
徳長 鎮  千葉大学, 大学院医学研究院, 特任助教 (30866992)
沖元 謙一郎  千葉大学, 医学部附属病院, 助教 (30770739)
藤江 舞  千葉大学, 医学部附属病院, 臨床工学技士 (90899337)
野村 行弘  千葉大学, フロンティア医工学センター, 准教授 (60436491)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2022: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2021: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords大腸癌 / AI / 大腸がん / 人工知能 / 内視鏡 / 深達度診断
Outline of Research at the Start

本研究は、大腸癌の深達度診断を行うCADシステムの開発および医薬品医療機器等法の承認
取得までを目指す。以下の3つのステップで予定する。
① 前向き画像収集・アノテーション AI診断システムの開発
② 臨床性能試験(多施設前向き研究)
③ 医薬品医療機器総合機構(PMDA)審査申請

Outline of Final Research Achievements

Endoscopic detection and resection of early-stage colorectal cancer is associated with reduced mortality from colorectal cancer. There is almost no risk of lymph node metastasis if the invasion of colorectal cancer is confined to the submucosa. Therefore, endoscopic treatment is indicated. However, the diagnosis of colorectal cancer depth is based on the judgment made at the time of endoscopy, and there are many cases of misdiagnosis.
In this study, we developed a computer-assisted diagnosis (CAD) system that uses artificial intelligence (AI) to diagnose the depth of colorectal cancer. This CAD system is useful for improving the diagnostic accuracy of non-expert endoscopists, and in cases diagnosed with high confidence, it was shown to be equivalent to the accuracy of expert endoscopists, suggesting that it could be a useful device in actual clinical practice.

Academic Significance and Societal Importance of the Research Achievements

本邦における大腸癌死亡率は増加している。今回我々は、AIを用いた大腸癌の発見と、治療方針決定に影響する深達度診断をサポートするコンピュータ診断支援システムを開発し、その有用性を実証した。このシステムが臨床に使用可能となれば、大腸癌患者に対する最適な治療方針の提供に貢献するばかりか、過度の侵襲を伴う治療の回避にもつながると考えられ、よって社会的意義は高いと考えられる。

Report

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

    (8 results)

All 2024 2023 2022

All Presentation (8 results) (of which Int'l Joint Research: 4 results,  Invited: 1 results)

  • [Presentation] 早期大腸癌深達度診断における非拡大白色光を用いたコンピュータ支援診断(CADx)システムの有用性2024

    • Author(s)
      松村倫明
    • Organizer
      第110回日本消化器病学会総会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Utility of computer-aided diagnostic system using white light imaging in T1 colorectal cancer: comparative study with prospective study using magnifying NBI endoscopy and magnifying chromoendoscopy2023

    • Author(s)
      Matsumura T, et al.
    • Organizer
      Digestive Disease Week 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] COMPUTER-AIDED DIAGNOSTIC SYSTEM USING NON-MAGNIFIED WHITE LIGHT IMAGING IN EARLY-STAGE COLORECTAL CANCER: COMPARISON WITH PROSPECTIVE STUDIES USING MAGNIFIED NBI ENDOSCOPY AND MAGNIFIED CHROMOENDOSCOPY2023

    • Author(s)
      Matsumura T, et al.
    • Organizer
      United European Gastroenterology Week
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Utility of computer-aided diagnostic system using white light imaging for the optical diagnosis of colorectal cancer with deep invasion: Comparative study with prospective study using magnifying chromoendoscopy2023

    • Author(s)
      Matsumura T, et al.
    • Organizer
      Digestive Disease Week 2022
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] コンピュータ支援診断を用いた白色光画像による大腸T1癌深達度診断:拡大内視鏡を用いた前向き研究との比較試験2023

    • Author(s)
      松村倫明
    • Organizer
      第105回日本消化器内視鏡学会総会
    • Related Report
      2023 Annual Research Report
  • [Presentation] コンピュータ支援診断を用いた白色光画像による大腸癌深達度診断:拡大内視鏡を用いた前向き研究との比較試験2023

    • Author(s)
      松村倫明
    • Organizer
      第106回日本消化器内視鏡学会関東支部例会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Artificial intelligence systems in evaluating the extent of invasion in colorectal cancer2023

    • Author(s)
      Matsumura T
    • Organizer
      Five-year anniversary of the Institute of Gastroenterology and Hepatology, Vietnam
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Utility of computer-aided diagnostic system using white light imaging for the optical diagnosis of colorectal cancer with deep invasion: comparative study with prospective study using magnifying chromoendoscopy.2022

    • Author(s)
      Tomoaki Matsumura
    • Organizer
      United European Gastroenterology Week:UEGW2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research

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Published: 2021-04-28   Modified: 2025-01-30  

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