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Innovation of colonoscopy practice with use of artificial intelligence

Research Project

Project/Area Number 19K08403
Research Category

Grant-in-Aid for Scientific Research (C)

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

Principal Investigator

Mori Yuichi  昭和大学, 医学部, 講師 (20459209)

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 2021: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywords人工知能 / 内視鏡 / 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、「ヒトを超える人工知能」を搭載した大腸ポリープ自動診断システムを評価すべく、国際多施設共同前向き試験を実施する。
大腸の腫瘍性ポリープは前がん病変であるため、摘除が推奨されている。しかし、内視鏡での腫瘍/非腫瘍の鑑別精度は80%台に留まっており、不必要なポリープ切除が横行している。われわれは人工知能(AI)を利用することで、この問題を解決できると考え、95%超の感度・特異度で腫瘍を鑑別しうる自動診断システムを開発した(Mori, et al.Ann Intern Med 2018)。
本課題では、日欧の共同前向き試験を実施することで、有効性を今までにない高いエビデンスレベルで評価する。

Outline of Final Research Achievements

The aim of the project is to establish the value of artificial intelligence for polyp characterisation during colonoscopy. To achieve this goal, we conducted an international prospective study in collaboration with institutions in Japan, the UK, and Norway. Roughly 1300 patients were included in the study. We successfully proved that the use of AI could reduce the number of unnecessary polyp removal thanks to the increased confidence level of endoscopists who use the artificial intelligence tool during colonoscopy.

Academic Significance and Societal Importance of the Research Achievements

世界初の大規模前向き臨床研究を実施したことにより、人工知能を用いることによって医師の診断確信度が上昇し、無駄なポリープ切除が減らせることを示せた。このデータは、今後人工知能を実臨床に導入していく上で非常に参考になるものであり、行政機関が保険償還の必要性等を考える際の参照データともなりうる。

Report

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

    (33 results)

All 2022 2021 2020 2019 Other

All Int'l Joint Research (4 results) Journal Article (29 results) (of which Int'l Joint Research: 17 results,  Peer Reviewed: 29 results,  Open Access: 4 results)

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

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

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] University of Oslo(ノルウェー)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] King's College(英国)

    • Related Report
      2019 Research-status Report
  • [Journal Article] Real-Time Artificial Intelligence-Based Optical Diagnosis of Neoplastic Polyps during Colonoscopy2022

    • Author(s)
      Ishita Barua, Paulina Wieszczy, Shin-ei Kudo, Michael Bretthauer, Yuichi Mori, et al.
    • Journal Title

      NEJM Evidence

      Volume: x

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Cost-effectiveness of artificial intelligence for screening colonoscopy: a modelling study2022

    • Author(s)
      Miguel Areia, Yuichi Mori, Loredana Correale, Cesare Hassan et al.
    • Journal Title

      Lancet Digital Health

      Volume: x

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] AI everywhere in endoscopy, not only for detection and characterization2021

    • Author(s)
      Hassan Cesare、Mori Yuichi、Antonelli Giulio
    • Journal Title

      Endoscopy International Open

      Volume: 09 Issue: 04 Pages: E627-E628

    • DOI

      10.1055/a-1373-4799

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Charting a path forward for clinical research in artificial intelligence and gastroenterology2021

    • Author(s)
      Glissen Brown Jeremy R.、Waljee Akbar K.、Mori Yuichi、Sharma Prateek、Berzin Tyler M.
    • Journal Title

      Digestive Endoscopy

      Volume: - Issue: 1 Pages: 4-12

    • DOI

      10.1111/den.13974

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Artificial intelligence in colonoscopy ‐ Now on the market. What's next?2021

    • Author(s)
      Mori Yuichi、Neumann Helmut、Misawa Masashi、Kudo Shin‐ei、Bretthauer Michael
    • Journal Title

      Journal of Gastroenterology and Hepatology

      Volume: 36 Issue: 1 Pages: 7-11

    • DOI

      10.1111/jgh.15339

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Artificial Intelligence System to Determine Risk of T1 Colorectal Cancer Metastasis to Lymph Node2021

    • Author(s)
      Kudo Shin-ei、Ichimasa Katsuro、Villard Benjamin、Mori Yuichi、Misawa Masashi、et al.
    • Journal Title

      Gastroenterology

      Volume: 160 Issue: 4 Pages: 1075-1084.e2

    • DOI

      10.1053/j.gastro.2020.09.027

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [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] How Far Will Clinical Application of AI Applications Advance for Colorectal Cancer Diagnosis?2020

    • Author(s)
      Mori Y, Kudo SE, Misawa M, Takeda K, Kudo T, Itoh H, Oda M, Mori K.
    • Journal Title

      Journal of the Anus, Rectum and Colon

      Volume: 4 Issue: 2 Pages: 47-50

    • DOI

      10.23922/jarc.2019-045

    • NAID

      130007837269

    • ISSN
      2432-3853
    • Year and Date
      2020-04-28
    • Related Report
      2020 Research-status Report 2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Establishing key research questions for the implementation of artificial intelligence in colonoscopy: a modified Delphi method2020

    • Author(s)
      Ahmad Omer F.、Mori Yuichi、Misawa Masashi、Kudo Shin-ei、et al.
    • Journal Title

      Endoscopy

      Volume: - Issue: 09 Pages: 893-901

    • DOI

      10.1055/a-1306-7590

    • 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] Can artificial intelligence help to detect dysplasia in patients with ulcerative colitis?2020

    • Author(s)
      Maeda Yasuharu、Kudo Shin-ei、Ogata Noriyuki、Misawa Masashi、Mori Yuichi、Mori Kensaku、Ohtsuka Kazuo
    • Journal Title

      Endoscopy

      Volume: - Issue: 07 Pages: E273-E274

    • DOI

      10.1055/a-1261-2944

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Robust endocytoscopic image classification based on higher-order symmetric tensor analysis and multi-scale topological statistics2020

    • Author(s)
      Itoh Hayato、Nimura Yukitaka、Mori Yuichi、Misawa Masashi、Kudo Shin-Ei、Hotta Kinichi、Ohtsuka Kazuo、Saito Shoichi、Saito Yutaka、Ikematsu Hiroaki、Hayashi Yuichiro、Oda Masahiro、Mori Kensaku
    • Journal Title

      International Journal of Computer Assisted Radiology and Surgery

      Volume: 15 Issue: 12 Pages: 2049-2059

    • DOI

      10.1007/s11548-020-02255-3

    • NAID

      120007178396

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [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
  • [Journal Article] Machine learning in GI endoscopy: practical guidance in how to interpret a novel field2020

    • Author(s)
      van der Sommen Fons、de Groof Jeroen、Struyvenberg Maarten、van der Putten Joost、Boers Tim、Fockens Kiki、Schoon Erik J、Curvers Wouter、de With Peter、Mori Yuichi、Byrne Michael、Bergman Jacques J G H M
    • Journal Title

      Gut

      Volume: 69 Issue: 11 Pages: 2035-2045

    • DOI

      10.1136/gutjnl-2019-320466

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Proceedings from the First Global Artificial Intelligence in Gastroenterology and Endoscopy Summit.2020

    • Author(s)
      Parasa S, Wallace M, Bagci U, Antonino M, Berzin T, Byrne M, Celik H, Farahani K, Golding M, Gross S, Jamali V, Mendonca P, Mori Y, Ninh A, Repici A, Rex D, Skrinak K, Thakkar SJ, van Hooft JE, Vargo J, Yu H, Xu Z, Sharma P.
    • Journal Title

      Gastrointest Endosc.

      Volume: in press Issue: 4 Pages: 938-945.e1

    • DOI

      10.1016/j.gie.2020.04.044

    • Related Report
      2020 Research-status Report 2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Cost savings in colonoscopy with artificial intelligence-aided polyp diagnosis: an add-on analysis of a clinical trial (with video).2020

    • Author(s)
      Mori Y, Kudo SE, East JE, Rastogi A, Bretthauer M, Misawa M, Sekiguchi M, Matsuda T, Saito Y, Ikematsu H, Hotta K, Ohtsuka K, Kudo T, Mori K.
    • Journal Title

      Gastrointest Endosc.

      Volume: in press Issue: 4 Pages: 905-911.e1

    • DOI

      10.1016/j.gie.2020.03.3759

    • Related Report
      2020 Research-status Report 2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Can artificial intelligence standardise colonoscopy quality?2020

    • Author(s)
      Mori Yuichi、Kudo Shin-ei、Misawa Masashi
    • Journal Title

      The Lancet Gastroenterology & Hepatology

      Volume: 5 Issue: 4 Pages: 331-332

    • DOI

      10.1016/s2468-1253(19)30407-8

    • Related Report
      2020 Research-status Report 2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Treatment policy for colonic laterally spreading tumors based on each clinicopathological feature of 4 subtypes: actual status of pseudo-depressed type.2020

    • Author(s)
      Ishigaki T, Kudo SE, Miyachi H, Hayashi T, Minegishi Y, Toyoshima N, Misawa M, Mori Y, Kudo T, Wakamura K, Baba T, Sawada N, Ishida F, Hamatani S.
    • Journal Title

      Gastrointest Endosc

      Volume: in press Issue: 5 Pages: 1083-1094.e6

    • DOI

      10.1016/j.gie.2020.04.033

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Endocytoscopy with NBI has the potential to correctly diagnose diminutive colorectal polyps that are difficult to diagnose using conventional NBI.2020

    • Author(s)
      Kataoka S, Kudo SE, Misawa M, Nakamura H, Takeda K, Toyoshima N, Mori Y, Ogata N, Kudo T, Hisayuki T, Hayashi T, Wakamura K, Baba T, Ishida F.
    • Journal Title

      Endosc Int Open

      Volume: 3 Issue: 03 Pages: E360-E367

    • DOI

      10.1055/a-1068-9228

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Endocytoscopic intramucosal capillary network changes and crypt architecture abnormalities can predict relapse in patients with an ulcerative colitis Mayo endoscopic score of 1.2020

    • Author(s)
      Maeda Y, Kudo SE, Ogata N, Mori Y, Misawa M, Homma M, Nemoto T, Ogawa M, Sasanuma S, Sato Y, Kataoka S, Kouyama Y, Sakurai T, Igarashi K, Ogawa Y, Kato K, Ichimasa K, Nakamura H, Kudo T, Hayashi T, Wakamura K, Baba T, Inoue H, Ohtsuka K.
    • Journal Title

      Dig Endosc

      Volume: in press Issue: 7 Pages: 1082-1091

    • DOI

      10.1111/den.13655

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Endocytoscopy for the differential diagnosis of colorectal low-grade adenoma: a novel possibility for the "resect and discard" strategy.2020

    • Author(s)
      Kudo T, Suzuki K, Mori Y, Misawa M, Ichimasa K, Takeda K, Nakamura H, Maeda Y, Ogawa Y, Hayashi T, Wakamura K, Ishida F, Inoue H, Kudo SE.
    • Journal Title

      Gastrointest Endosc

      Volume: 3 Issue: 3 Pages: 676-683

    • DOI

      10.1016/j.gie.2019.11.029

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Artificial Intelligence-assisted System Improves Endoscopic Identification of Colorectal Neoplasms.2019

    • Author(s)
      Kudo SE, Misawa M, Mori Y, Hotta K, Ohtsuka K, Ikematsu H, Saito Y, Takeda K, Nakamura H, Ichimasa K, Ishigaki T, Toyoshima N, Kudo T, Hayashi T, Wakamura K, Baba T, Fumio I, Inoue H, Itoh H, Oda M, Mori K.
    • Journal Title

      Clin Gastroenterol Hepatol.

      Volume: in press Issue: 8 Pages: 1874-1881.e2

    • DOI

      10.1016/j.cgh.2019.09.009

    • Related Report
      2020 Research-status Report 2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Simultaneous detection and characterization of diminutive polyps with the use of artificial intelligence during colonoscopy.2019

    • Author(s)
      Mori Y, Kudo SE, Misawa M, Mori K.
    • Journal Title

      VideoGIE

      Volume: 4 Issue: 1 Pages: 7-10

    • DOI

      10.1016/j.vgie.2018.10.006

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Stable polyp-scene classification via subsampling and residual learning from an imbalanced large dataset2019

    • Author(s)
      Itoh Hayato、Roth Holger、Oda Masahiro、Misawa Masashi、Mori Yuichi、Kudo Shin-Ei、Mori Kensaku
    • Journal Title

      Healthcare Technology Letters

      Volume: 6 Issue: 6 Pages: 237-242

    • DOI

      10.1049/htl.2019.0079

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Correction: Advanced imaging for detection and differentiation of colorectal neoplasia: European Society of Gastrointestinal Endoscopy (ESGE) Guideline - Update 2019.2019

    • Author(s)
      Bisschops R, East JE, Hassan C, Hazewinkel Y, Kaminski MF, Neumann H, Pellis M, Antonelli G, Bustamante Balen M, Coron E, Cortas G, Iacucci M, Yuichi M, Longcroft-Wheaton G, Mouzyka S, Pilonis N, Puig I, van Hooft JE, Dekker E.
    • Journal Title

      Endoscopy

      Volume: in press Issue: 12 Pages: C6-C6

    • DOI

      10.1055/a-1074-5788

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The ability of positron emission tomography/computed tomography to detect synchronous colonic cancers in patients with obstructive colorectal cancer2019

    • Author(s)
      Maeda Chiyo、Endo Shungo、Mori Yuichi、Mukai Shumpei、Hidaka Eiji、Ishida Fumio、Kudo Shin-Ei
    • Journal Title

      Molecular and Clinical Oncology

      Volume: NA

    • DOI

      10.3892/mco.2019.1815

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Artificial intelligence for early gastric cancer: early promise and the path ahead.2019

    • Author(s)
      Mori Y, Berzin TM, Kudo SE
    • Journal Title

      Gastrointest Endosc.

      Volume: 89 Issue: 4 Pages: 816-817

    • DOI

      10.1016/j.gie.2018.12.019

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Artificial intelligence and colonoscopy: Current status and future perspectives2019

    • Author(s)
      Kudo Shin‐ei、Mori Yuichi、Misawa Masashi、Takeda Kenichi、Kudo Toyoki、Itoh Hayato、Oda Masahiro、Mori Kensaku
    • Journal Title

      Digestive Endoscopy

      Volume: 31 Issue: 4 Pages: 363-371

    • DOI

      10.1111/den.13340

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Artificial intelligence and upper gastrointestinal endoscopy: Current status and future perspective.2019

    • Author(s)
      Mori Y, Kudo SE, Mohmed HEN, Misawa M, Ogata N, Itoh H, Oda M, Mori K
    • Journal Title

      Dig Endosc.

      Volume: epub ahead of print Issue: 4 Pages: 378-388

    • DOI

      10.1111/den.13317

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research

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

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