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Development of Endoscopic Diagnosis of Ulcerative Colitis-Associated Neoplasia Using Artificial Intelligence

Research Project

Project/Area Number 20K17002
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

Maeda Yasuharu  昭和大学, 医学部, 講師 (30595616)

Project Period (FY) 2020-04-01 – 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 2021: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2020: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords潰瘍性大腸炎 / 大腸癌 / 大腸内視鏡 / 人工知能 / 光学生検 / 潰瘍性大腸炎関連腫瘍 / 自動診断システム
Outline of Research at the Start

本研究は人工知能(AI)を利用することで、潰瘍性大腸炎(UC)関連腫瘍の内視鏡診断の確立を目指す。UCは、本邦で22万人の罹患者がいる疾患である。UC患者では年3%と高率でUC関連腫瘍が発生する。UC関連腫瘍を早期に正確に診断し治療することで大腸癌の抑制や大腸全摘術の回避が可能である。しかしながら、周囲粘膜との境界が不明瞭であり、既存の内視鏡モダリティでは十分な精度での診断が困難である。そのため、具体的には①UC関連腫瘍の自動診断ソフトの開発、②後ろ向きおよび前向き臨床研究における性能評価及び課題の抽出のプロセスを順次行う。

Outline of Final Research Achievements

The specific goals of this study were to (1) annotate images for machine learning and (2) evaluate the constructed artificial intelligence. We focused on developing an ultra-expanded endoscopic diagnostic method for differentiating between tumor and non-tumor in ulcerative colitis-related tumors, which underpins the annotation of images for machine learning. The results were summarized in an English paper and accepted for publication. Kudo SE, Maeda Y, et al. developed a prototype by annotating images for machine learning based on this ultra-expanded endoscopy diagnostic method. We also evaluated the utility of the currently available CADe for monitoring patients with ulcerative colitis, aiming to develop software to assist in lesion detection. This work was reported by Maeda Y, Kudo SE, et al. Endoscopy. 2021. Additionally, we identified the challenge of misdiagnosing highly inflamed mucosa and inflammatory polyps as neoplastic lesions (Maeda, et al., UEGW 2022).

Academic Significance and Societal Importance of the Research Achievements

本研究は人工知能(AI)を利用することで、潰瘍性大腸炎(UC)関連腫瘍の内視鏡診断の確立を目標とした。UCは、本邦で22万人の罹患者がいる疾患である。UC患者では年3%と高率でUC関連腫瘍が発生する。UC関連腫瘍を早期に正確に診断し治療することで大腸癌の抑制や大腸全摘術の回避が可能である。しかしながら、周囲粘膜との境界が不明瞭であり、既存の内視鏡モダリティでは十分な精度での診断が困難であった。今後、本研究で開発したシステムが実用化を目指す。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (21 results)

All 2024 2023 2022 2021 2020 Other

All Int'l Joint Research (1 results) Journal Article (13 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 11 results,  Open Access: 1 results) Presentation (7 results) (of which Int'l Joint Research: 3 results)

  • [Int'l Joint Research] Mayo clinc(米国)

    • Related Report
      2022 Research-status Report
  • [Journal Article] A novel artificial intelligence-assisted “vascular-healing” diagnosis for prediction of future clinical relapse in patients with ulcerative colitis: a prospective cohort study2024

    • Author(s)
      Kuroki Takanori、Maeda Yasuharu、Kudo Shin-ei, et al.
    • Journal Title

      Gastrointestinal Endoscopy

      Volume: ー Issue: 1 Pages: 97-108

    • DOI

      10.1016/j.gie.2024.01.010

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Artificial intelligence-assisted colonoscopy to identify histologic remission and predict the outcomes of patients with ulcerative colitis: A systematic review2024

    • Author(s)
      Maeda Yasuharu、Kudo Shin-ei、Santacroce Giovanni、et al.
    • Journal Title

      Digestive and Liver Disease

      Volume: ー Issue: 7 Pages: 1119-1125

    • DOI

      10.1016/j.dld.2024.04.005

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Ultrahigh magnification endoscopy in inflammatory bowel disease: How do we bridge the gap between research and practice?2023

    • Author(s)
      Maeda Yasuharu、Kudo Shin‐ei、Iacucci Marietta
    • Journal Title

      Digestive Endoscopy

      Volume: 36 Issue: 3 Pages: 290-291

    • DOI

      10.1111/den.14678

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Use of advanced endoscopic technology for optical characterization of neoplasia in patients with ulcerative colitis: a systematic review2022

    • Author(s)
      Maeda Yasuharu、Kudo Shin‐ei、Ogata Noriyuki、Kuroki Takanori、Takashina Yuki、Takishima Kazumi、Ogawa Yushi、Ichimasa Katsuro、Mori Yuichi、Kudo Toyoki、Hayashi Takemasa、Miyachi Hideyuki、Ishida Fumio、Nemoto Tetsuo、Ohtsuka Kazuo、Misawa Masashi
    • Journal Title

      Digestive Endoscopy

      Volume: Epub ahead of print Issue: 7 Pages: 1297-1310

    • DOI

      10.1111/den.14335

    • Related Report
      2022 Research-status Report 2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Identification of a small, depressed type of colorectal invasive cancer by an artificial intelligence-assisted detection system2022

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

      Endoscopy

      Volume: 54 Issue: 10 Pages: E592-E593

    • DOI

      10.1055/a-1704-8103

    • Related Report
      2022 Research-status Report 2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Beyond complete endoscopic healing: Goblet appearance using an endocytoscope to predict future sustained clinical remission in ulcerative colitis2022

    • Author(s)
      Takishima Kazumi、Maeda Yasuharu、Ogata Noriyuki, et al
    • Journal Title

      Digestive Endoscopy

      Volume: 34 Issue: 5 Pages: 1030-1039

    • DOI

      10.1111/den.14202

    • Related Report
      2022 Research-status Report 2021 Research-status Report
  • [Journal Article] Deep learning-based automated quantification of goblet cell mucus using histological images as a predictor of clinical relapse of ulcerative colitis with endoscopic remission2022

    • Author(s)
      Ohara Jun、Nemoto Tetsuo、Maeda Yasuharu、Ogata Noriyuki、Kudo Shin-ei、Yamochi Toshiko
    • Journal Title

      Journal of Gastroenterology

      Volume: 57 Issue: 12 Pages: 962-970

    • DOI

      10.1007/s00535-022-01924-1

    • Related Report
      2022 Research-status Report
  • [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 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Current problems and perspectives of pathological risk factors for lymph node metastasis in T1 colorectal cancer: Systematic review2022

    • Author(s)
      Ichimasa Katsuro、Kudo Shin‐ei、Miyachi Hideyuki、Kouyama Yuta、Mochizuki Kenichi、Takashina Yuki、Maeda Yasuharu、Mori Yuichi、Kudo Toyoki、Miyata Yuki、Akimoto Yoshika、Kataoka Yuki、Kubota Takafumi、Nemoto Tetsuo、Ishida Fumio、Misawa Masashi
    • Journal Title

      Digestive Endoscopy

      Volume: Epub ahead of print Issue: 5 Pages: 901-912

    • DOI

      10.1111/den.14220

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [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 Research-status Report
    • Peer Reviewed
  • [Journal Article] Combined endocytoscopy with pit pattern diagnosis in ulcerative colitis‐associated neoplasia: Pilot study2021

    • Author(s)
      Kudo Shin‐ei、Maeda Yasuharu、Okumura Taishi、Matsudaira Shingo、Ishigaki Tomoyuki、Sasanuma Seiko、Mori Yuichi、Kudo Toyoki、Hayashi Takemasa、Wakamura Kunihiko、Miyachi Hideyuki、Baba Toshiyuki、Ohtsuka Kazuo
    • Journal Title

      Digestive Endoscopy

      Volume: - Issue: 1 Pages: 133-143

    • DOI

      10.1111/den.13964

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Letter: the combination of histologic remission and Mayo endoscopic score 1 as a suitable therapeutic target in ulcerative colitis.2021

    • Author(s)
      Maeda Yasuharu、Kudo Shin-ei、 Takishima Kazumi, Misawa Masashi, Ogata Noriyuki, Ohtsuka Kazuo.
    • Journal Title

      Alimentary Pharmacol & Therpeutics

      Volume: - Issue: 8 Pages: 955-956

    • DOI

      10.1111/apt.16302

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [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
  • [Presentation] USEFULNESS AND LIMITATIONS OF COMPUTER-AIDED DETECTION (CADE) SYSTEM IN SURVEILLANCE COLONOSCOPY IN PATIENTS WITH ULCERATIVE COLITIS.2022

    • Author(s)
      Maeda Y., Kudo S., Ogata N., Ogawa Y.,Ogawa Y., Matsudaira S., Nakamura H., Mori Y., Kudo T., Hisayuki T., Hayashi T., Wakamura K., Miyachi H., Baba T., Ohtsuka K., Misawa M.
    • Organizer
      UEG Week2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] REAL-TIME USE OF ARTIFICIAL INTELLIGENCE DURING COLONOSCOPY PREDICTS RELAPSE OF ULCERATIVE COLITIS: A PROSPECTIVE STUDY2021

    • Author(s)
      Y. Maeda, S.-e. Kudo, N. Ogata, M. Misawa, K. Takishima, K. Mochida, K. Tanaka, H. Nakamura, K. Ichimasa, T. Kudo, T. Hayashi, K. Wakamura, H. Miyachi, T. Baba, F. Ishida, H. Itoh, M. Oda, K. Mori, K. Ohtsuka, Y. Mori,
    • Organizer
      UEG Week 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 内視鏡人工知能による潰瘍性大腸炎の活動性モニタリング2021

    • Author(s)
      前田康晴, 工藤進英, 小形典之
    • Organizer
      JDDW2021
    • Related Report
      2021 Research-status Report
  • [Presentation] NUCLEAR OBSERVATION WITH ENDOCYTOSCOPY PROVIDES ADDITIONAL DIAGNOSTIC ABILITY TO PIT PATTERN FOR ULCERATIVE COLITIS ASSOCIATED NEOPLASIA2020

    • Author(s)
      Maeda Y., Kudo S., Ogata N., Misawa M., Ogawa Y., Takishima K., Ichimasa K., Matsudaira S., Ishigaki T., Nakamura H., Toyoshima N., Mori Y., Kudo T., Hisayuki T., Hayashi T., Wakamura K., Miyachi H., Baba T., Ohtsuka K.
    • Organizer
      UEG Week
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] 医工産連携研究に基づく、AI 搭載内視鏡診断支援ソフトウェアの開発と課題.2020

    • Author(s)
      前田康晴, 工藤進英, 森悠一
    • Organizer
      第99回 日本消化器内視鏡学会総会
    • Related Report
      2020 Research-status Report
  • [Presentation] 超拡大内視鏡による潰瘍性大腸炎関連腫瘍の質的診断.2020

    • Author(s)
      前田 康晴, 工藤 進英, 小形 典之.
    • Organizer
      JDDW2020
    • Related Report
      2020 Research-status Report
  • [Presentation] 潰瘍性大腸炎関連腫瘍に対するEndocytoscopyの使用経験.2020

    • Author(s)
      前田 康晴,工藤 進英,小形 典之 瀧島 和美,佐藤 雄太.
    • Organizer
      第110回 日本消化器内視鏡学会関東支部例会
    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2025-01-30  

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