• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2021 Fiscal Year Annual Research Report

Artificial intelligence assisted endoscopy system targeting on automated detection

Research Project

Project/Area Number 19K17504
Research InstitutionShowa University

Principal Investigator

三澤 将史  昭和大学, 医学部, 講師 (90459206)

Project Period (FY) 2019-04-01 – 2022-03-31
Keywords人工知能 / 大腸癌 / 大腸内視鏡
Outline of Annual Research Achievements

COVID-19の影響で研究期間を1年間延長し、2021年度の研究を実施した。2021年度は開発した病変検出支援AIを使用した臨床研究を実施した。試験デザインは単施設前向き研究で、本ソフトウェア使用により腫瘍検出率が有意に向上するかどうかを検証するものである。ソフトウェア使用群と不使用群の割り付けは傾向スコアマッチングで行った。総計1836名が解析対象となり、主要価項目である腺腫検出率(ADR)はソフトウェア使用群で有意に高く約7%の向上を認めた。
この結果から本ソフトウェアを使用することにより将来的な大腸癌のり患リスクを低減できることが示唆された。一方で、ソフトウェア検出により上乗せ効果のあった病変は5mm以下の微小な良性腫瘍であり、より長期的なアウトカムを設定した大規模なstudyが必要と考えられた。また当初目的であった、陥凹型癌の発見については成功事例をcase reportとして報告した(Kudo S, Misawa M, et al. Endoscopy 2021)。

  • Research Products

    (11 results)

All 2022 2021

All Journal Article (7 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 7 results) Presentation (4 results) (of which Int'l Joint Research: 3 results,  Invited: 3 results)

  • [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 Pages: 155~163

    • DOI

      10.1016/j.gie.2021.07.022

    • 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: - Pages: -

    • 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 Pages: 747~756.e2

    • DOI

      10.1016/j.gie.2021.10.019

    • Peer Reviewed
  • [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: - Pages: -

    • DOI

      10.1016/j.gie.2022.04.1305

    • 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: - Pages: -

    • DOI

      10.1016/j.gie.2022.04.057

    • 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: - Pages: -

    • 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 Pages: E1004~E1011

    • DOI

      10.1055/a-1475-3624

    • Peer Reviewed
  • [Presentation] Artificial intelligence in endoscopy: present and future2022

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

    • Author(s)
      Masashi Misawa
    • Organizer
      WEO webinar
    • 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
  • [Presentation] Endocytoscopy and Diagnostic AI: Isn't Conventional Magnifying Endoscopy Enough?2021

    • Author(s)
      Masashi Misawa, Shin-ei Kudo, Yuichi Mori
    • Organizer
      APDW2021
    • Int'l Joint Research / Invited

URL: 

Published: 2022-12-28  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi