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Artificial intelligence assisted endoscopy system targeting on automated detection

Research Project

Project/Area Number 19K17504
Research Category

Grant-in-Aid for Early-Career Scientists

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

Principal Investigator

Misawa Masashi  昭和大学, 医学部, 講師 (90459206)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2019: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords人工知能 / 大腸癌 / 大腸ポリープ / 大腸内視鏡
Outline of Research at the Start

本研究ではディープラーニング(人工知能技術)を活用し、大腸内視鏡検査中にリアルタイムで病変(癌やポリープなど)を自動検出するシステムを開発する。従来の研究では発見が難しい微小な癌や陥凹型癌の自動検出が困難であったが、当センターに保管されている画像ビッグデータでこれを打開する。

Outline of Final Research Achievements

In colonoscopy, it is an urgent issue to prevent tumor lesions from being missed. In this study, we developed a software program that assists endoscopists in detecting lesions using artificial intelligence (AI) and validated the software in a real clinical setting. The software runs in real time basis, and when a polyp appears on an endoscopic image, the software prompts the endoscopist to detect the lesion by indicating the sound and the location of the polyp with a rectangle. We conducted a prospective study using this AI. It was found that the detection rate of neoplastic polyps was higher in the group using the software. Based on these results, it was suggested that the risk of developing cancer in the future could be reduced if the patient underwent testing using AI.

Academic Significance and Societal Importance of the Research Achievements

現時点では大腸内視鏡検査1回あたり、約25%程度の腫瘍性ポリープが見逃されていることが指摘されている。また大腸癌検診目的に大腸内視鏡検査を受けた数年後に発見される大腸癌の約60%がこのような見逃しに起因している。本研究成果のAIソフトウェアを使用することによって、見逃しを減らし結果的に大腸癌のり患リスクを低減できることが期待されている。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (21 results)

All 2022 2021 2020 Other

All Int'l Joint Research (2 results) Journal Article (10 results) (of which Int'l Joint Research: 6 results,  Peer Reviewed: 10 results) Presentation (9 results) (of which Int'l Joint Research: 5 results,  Invited: 7 results)

  • [Int'l Joint Research] Oslo University(ノルウェー)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] King’s College Hospital(英国)

    • Related Report
      2020 Research-status Report
  • [Journal Article] Impact of the clinical use of artificial intelligence-assisted neoplasia detection for colonoscopy: a large-scale prospective, propensity score?matched study (with video)2022

    • Author(s)
      Ishiyama Misaki、Kudo Shin-ei、Misawa Masashi、Mori Yuichi、Maeda Yasuhara、Ichimasa Katsuro、Kudo Toyoki、Hayashi Takemasa、Wakamura Kunihiko、Miyachi Hideyuki、Ishida Fumio、Itoh Hayato、Oda Masahiro、Mori Kensaku
    • Journal Title

      Gastrointestinal Endoscopy

      Volume: 95 Issue: 1 Pages: 155-163

    • DOI

      10.1016/j.gie.2021.07.022

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Comprehensive Diagnostic Performance of Real-Time Characterization of Colorectal Lesions Using an Artificial Intelligence?Assisted System: A Prospective Study2022

    • Author(s)
      Minegishi Yosuke、Kudo Shin-Ei、Miyata Yuki、Nemoto Tetsuo、Mori Kensaku、Misawa Masashi
    • Journal Title

      Gastroenterology

      Volume: -

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Evaluation in real-time use of artificial intelligence during colonoscopy to predict relapse of ulcerative colitis: a prospective study2022

    • Author(s)
      Maeda Yasuharu、Kudo Shin-ei、Ogata Noriyuki、Misawa Masashi、Iacucci Marietta、Homma Mayumi、Nemoto Tetsuo、Takishima Kazumi、Mochida Kentaro、Miyachi Hideyuki、Baba Toshiyuki、Mori Kensaku、Ohtsuka Kazuo、Mori Yuichi
    • Journal Title

      Gastrointestinal Endoscopy

      Volume: 95 Issue: 4 Pages: 747-756.e2

    • DOI

      10.1016/j.gie.2021.10.019

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Novel “Resect and Analysis” Approach For T2 Colorectal Cancer With Use Of Artificial Intelligence2022

    • Author(s)
      Ichimasa Katsuro、Nakahara Kenta、Kudo Shin-ei、Misawa Masashi、Bretthauer Michael、Shimada Shoji、Takehara Yusuke、Mukai Shunpei、Kouyama Yuta、Miyachi Hideyuki、Sawada Naruhiko、Mori Kensaku、Ishida Fumio、Mori Yuichi
    • Journal Title

      Gastrointestinal Endoscopy

      Volume: - Issue: 4 Pages: 665-672.e1

    • DOI

      10.1016/j.gie.2022.04.1305

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Artificial Intelligence for Disease Diagnosis ? the Gold Standard Challenge2022

    • Author(s)
      Mori Yuichi、Misawa Masashi、Bernal Jorge、Bretthauer Michael、Kudo Shin-ei、Rastogi Amit、Fern?ndez-Esparrach Gloria
    • Journal Title

      Gastrointestinal Endoscopy

      Volume: - Issue: 2 Pages: 370-372

    • DOI

      10.1016/j.gie.2022.04.057

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Identification of a small, depressed type of colorectal invasive cancer by an artificial intelligence-assisted detection system2021

    • Author(s)
      Kudo Shin-ei、Misawa Masashi、Mori Yuichi、Kawabata Yurie、Maeda Yasuharu、Miyachi Hideyuki、Mori Kensaku
    • Journal Title

      Endoscopy

      Volume: -

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Artificial intelligence-assisted colonic endocytoscopy for cancer recognition: a multicenter study2021

    • Author(s)
      Mori Yuichi、Kudo Shin-ei、Misawa Masashi、Hotta Kinichi、Kazuo Ohtsuka、Saito Shoichi、Ikematsu Hiroaki、Saito Yutaka、Matsuda Takahisa、Kenichi Takeda、Kudo Toyoki、Nemoto Tetsuo、Itoh Hayato、Mori Kensaku
    • Journal Title

      Endoscopy International Open

      Volume: 09 Issue: 07 Pages: E1004-E1011

    • DOI

      10.1055/a-1475-3624

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development of a computer-aided detection system for colonoscopy and a publicly accessible large colonoscopy video database (with video)2021

    • Author(s)
      Misawa Masashi、Kudo Shin-ei、Mori Yuichi、Hotta Kinichi、Ohtsuka Kazuo、Matsuda Takahisa、Saito Shoichi、Kudo Toyoki、Baba Toshiyuki、Ishida Fumio、Itoh Hayato、Oda Masahiro、Mori Kensaku
    • Journal Title

      Gastrointestinal Endoscopy

      Volume: 93 Issue: 4 Pages: 960-967.e3

    • DOI

      10.1016/j.gie.2020.07.060

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Current status and future perspective on artificial intelligence for lower endoscopy2020

    • Author(s)
      Misawa Masashi、Kudo Shin‐ei、Mori Yuichi、Maeda Yasuharu、Ogawa Yushi、Ichimasa Katsuro、Kudo Toyoki、Wakamura Kunihiko、Hayashi Takemasa、Miyachi Hideyuki、Baba Toshiyuki、Ishida Fumio、Itoh Hayato、Oda Masahiro、Mori Kensaku
    • Journal Title

      Digestive Endoscopy

      Volume: 33 Issue: 2 Pages: 273-284

    • DOI

      10.1111/den.13847

    • NAID

      130008066040

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Artificial intelligence for polyp detection during colonoscopy: a systematic review and meta-analysis2020

    • Author(s)
      Barua Ishita、Vinsard Daniela Guerrero、Jodal Henriette C.、Loberg Magnus、Kalager Mette、Holme Oyvind、Misawa Masashi、Bretthauer Michael、Mori Yuichi
    • Journal Title

      Endoscopy

      Volume: 53 Issue: 03 Pages: 277-284

    • DOI

      10.1055/a-1201-7165

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Artificial intelligence in endoscopy: present and future2022

    • Author(s)
      Masashi Misawa
    • Organizer
      VNAGE Congress 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Cost-effectiveness of AI for polyp characterization2021

    • Author(s)
      Masashi Misawa
    • Organizer
      WEO webinar
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Endocytoscopy and artificial intelligence-based diagnosis for early colorectal cancer2021

    • Author(s)
      Masashi Misawa, Shin-ei Kudo, Yuichi Mori
    • Organizer
      JDDW2021
    • Related Report
      2021 Annual Research Report
  • [Presentation] Endocytoscopy and Diagnostic AI: Isn't Conventional Magnifying Endoscopy Enough?2021

    • Author(s)
      Masashi Misawa, Shin-ei Kudo, Yuichi Mori
    • Organizer
      APDW2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] AIによる大腸内視鏡診断 現状と今後の展望2020

    • Author(s)
      三澤将史
    • Organizer
      第58回癌治療学会総会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] The use of Endocytoscopy for Colorectal Neoplasms2020

    • Author(s)
      三澤将史
    • Organizer
      ANBIIG Webinar Series Endocytoscopy and EndoBRAIN for Colorectal Neoplasia
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 薬事申請を見据えた、大腸内視鏡診療支援ソフトウェアの開発2020

    • Author(s)
      三澤将史
    • Organizer
      第99回日本消化器内視鏡学会総会
    • Related Report
      2020 Research-status Report
  • [Presentation] AI診断:近未来を予測する2020

    • Author(s)
      三澤将史
    • Organizer
      第29回日本大腸肛門病学会教育セミナー
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Endocytoscopy & EndoBRAIN2020

    • Author(s)
      三澤将史
    • Organizer
      Virtual Conference and Live Workshop on NBI / ESD / 3rd Space Endoscopy
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited

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Published: 2019-04-18   Modified: 2023-01-30  

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