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Standardization of Endoscopy Image Quality for International Telemedicine Education on Early Gastric Cancer Diagnosis

Research Project

Project/Area Number 19K03004
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 09070:Educational technology-related
Research InstitutionKyushu University

Principal Investigator

Ueda Shintaro  九州大学, 大学病院, 学術研究員 (10823445)

Co-Investigator(Kenkyū-buntansha) 森山 智彦  九州大学, 大学病院, 准教授 (20452758)
工藤 孔梨子  九州大学, 大学病院, 助教 (50644796)
清水 周次  九州大学, 大学病院, 名誉教授 (70274454)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords国際遠隔教育 / 早期胃癌 / 画像品質 / 国際遠隔医療教育 / 早期胃癌診断
Outline of Research at the Start

日本の内視鏡早期胃癌診断に関する知識と経験を外国人医師と共有するにはICTを活用した国際遠隔医療教育が有用である。早期胃癌の内視鏡特徴を伝えるにはより高品質の画像が望ましいが、膨大な情報量はネットワークを圧迫し通信が不安定となり円滑な議論の妨げとなるため、伝送する画像圧縮率と、情報の正確な伝達に必要な画質のバランスが重要となる。本研究では、日本人内視鏡医への画像評価調査に基づいて内視鏡画像の圧縮率を決め、それを用いた国際遠隔医療教育を行った後に内容に対する満足度や理解度を送受信側、双方の医師へ確認することで、円滑かつ高品質な早期胃癌の国際遠隔医療教育を提供するための内視鏡画像品質を明確にする。

Outline of Final Research Achievements

It is essential to use high-definition endoscopy images when diagnosing early gastric cancer. Such endoscopy images require much network bandwidth when transmitted during international telemedicine education conferences, thus images must be compressed for transmission to overseas institutions with insufficient networks. However, excessive compression degrades the image quality and hinders diagnosis. Therefore, in this research, we developed the minimum endoscopic image quality standards required to discuss early gastric cancer diagnosis in international telemedicine education. To be specific, we clarified the relationship between the resolution of endoscopic images and the bit rate of the network, necessary to recognize "diagnosis of lesion extent" and "mucosal and vascular structures on the lesion surface," which are required for the diagnosis of early gastric cancer.

Academic Significance and Societal Importance of the Research Achievements

本研究は、九州大学病院に勤務している多数の内視鏡専門医の意見に基づき、送信側からみた早期胃癌診断のための内視鏡画像品質の基準を定めると同時に、受信側の理解度を調査することで、効率的かつ有効な国際遠隔医療教育のための内視鏡画像品質を策定した。これにより早期胃癌診断をトピックとした国際遠隔医療教育において必要とされるある一定の画像品質の内視鏡画像を用いた議論が確保され、日本の早期胃癌診断学の確立が世界中へ拡がり、胃癌死亡率の減少への貢献が期待されることが本研究の学術的意義や社会的意義になる。

Report

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

    (32 results)

All 2022 2021 2020 2019

All Journal Article (11 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 11 results,  Open Access: 1 results) Presentation (19 results) (of which Int'l Joint Research: 6 results,  Invited: 5 results) Book (2 results)

  • [Journal Article] Barriers to International Telemedicine Conferencing: A Survey of the National University Hospital Council of Japan2022

    • Author(s)
      Kudo Kuriko、Isobe Noriko、Ueda Shintaro、Tomimatsu Shunta、Moriyama Tomohiko、Shimizu Shuji
    • Journal Title

      Telemedicine and e-Health

      Volume: 28 Issue: 3 Pages: 433-439

    • DOI

      10.1089/tmj.2021.0046

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Lecturers’ and students’ perspectives toward the shift to online teaching owing to COVID 19: a case at Kyushu University School of Medicine2021

    • Author(s)
      Shintaro Ueda, Kuriko Kudo, Shunta Tomimatsu, Shuji Shimizu, Tomohiko Moriyama
    • Journal Title

      日本遠隔医療学会雑誌

      Volume: 17 Pages: 108-111

    • NAID

      40022684003

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 遠隔会議ソフトウェアを用いた HD 画質での内視鏡ライブ配信の評価2021

    • Author(s)
      富松俊太, 吉田直久, 木村哲也, 工藤孔梨子, 上田真太郎, 清水周 次, 森山智彦
    • Journal Title

      日本遠隔医療学会雑誌

      Volume: 17 Pages: 120-123

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] オンラインでの国際間遠隔医療教育技術研修の実施と評価2021

    • Author(s)
      工藤孔梨子, 上田真太郎, 富松俊太, 早田美帆, 清水周次, 森山智彦
    • Journal Title

      日本遠隔医療学会雑誌

      Volume: 17 Pages: 104-107

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development and Evaluation of a Technical Information Sharing System for International Remote Medical Education2021

    • Author(s)
      Tomimatsu Shunta、Kudo Kuriko、Shimizu Shuji、Ueda Shintaro、Moriyama Tomohiko、Hirai Yasuyuki
    • Journal Title

      Advances in Usability, User Experience, Wearable and Assistive Technology

      Volume: 1 Pages: 1090-1098

    • DOI

      10.1007/978-3-030-80091-8_129

    • ISBN
      9783030800901, 9783030800918
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Barriers against and Improvement Measures of Discussion during Bilateral Video-conferencing in an Early Gastric Cancer Case Study2020

    • Author(s)
      Ueda S, Kudo K, Moriyama T, Tomimatsu S, Shimizu S
    • Journal Title

      Conference Proceedings of the 11th Biennial Conference of the Asia-Pacific Association for Medical Informatics

      Volume: N/A Pages: 77-81

    • NAID

      120006956803

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Participants’ Evaluation of a Virtual Academic Conference: Report from the 24th Japan Association of Medical Informatics Spring Symposium2020

    • Author(s)
      Kudo K, Ueda S, Shitoh H, Narikiyo T, Tomimatsu S, Watanabe S, Nakahara T, Nakashima N, Moriyama T, Nakano T, Shimizu S
    • Journal Title

      Conference Proceedings of the 11th Biennial Conference of the Asia-Pacific Association for Medical Informatics

      Volume: N/A Pages: 71-76

    • NAID

      120006956794

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Technical Support for Rapid Replacement of Face to face Events with Online Events due to the COVID 19 Pandemic: a Case Study from Kyushu University Hospital2020

    • Author(s)
      Tomimatsu S, Kudo K, Moriyama T, Ueda S, Hirai Y, Shimizu S
    • Journal Title

      Conference Proceedings of the 11th Biennial Conference of the Asia-Pacific Association for Medical Informatics

      Volume: N/A Pages: 66-70

    • NAID

      120006956804

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Remote Medical Education in Indonesia: Analysis of 10 Years of Activities2020

    • Author(s)
      Shimizu S, Tomimatsu S, Kudo K, Ueda S, Kekalih A, Makmun D, Estiasari R, Oki A, Moriyama T
    • Journal Title

      Journal of the International Society for Telemedicine and eHealth

      Volume: 8: e6 Pages: 1-6

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] アジア発展途上国を対象とした遠隔医療教育技術研修の実施と評価2019

    • Author(s)
      工藤孔梨子, 森山智彦, 上田真太郎, 富松俊太, 清水周次
    • Journal Title

      日本遠隔医療学会雑誌

      Volume: 15 Pages: 119-122

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] 技術環境の指標作成を目的とした国際間の医療教育における遠隔会議の機材構成分類2019

    • Author(s)
      富松俊太, 工藤孔梨子, 上田真太郎, 森山智彦, 平井康之, 清水周次
    • Journal Title

      日本遠隔医療学会雑誌

      Volume: 15 Pages: 115-118

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] How to improve content quality during telemedicine conferences2021

    • Author(s)
      Shintaro Ueda
    • Organizer
      15th Asia Telemedicine Symposium
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Lecturers’ and students’ perspectives toward the shift to online teaching owing to COVID 19: a case at Kyushu University School of Medicine2021

    • Author(s)
      上田真太郎, 工藤孔梨子, 富松俊太, 清水周次, 森山智彦
    • Organizer
      第25回日本遠隔医療学会学術大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 遠隔会議ソフトウェアを用いた HD 画質での内視鏡ライブ配信の評価2021

    • Author(s)
      富松俊太, 吉田直久, 木村哲也, 工藤孔梨子, 上田真太郎, 清水周次, 森山智彦
    • Organizer
      第25回日本遠隔医療学会学術大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] オンラインでの国際間遠隔医療教育技術研修の実施と評価2021

    • Author(s)
      工藤孔梨子, 上田真太郎, 富松俊太, 早田美帆, 清水周次, 森山智彦
    • Organizer
      第25回日本遠隔医療学会学術大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 早期胃がん診断の遠隔医療教育に必要な内視鏡画像解像度とネットワーク環境2021

    • Author(s)
      上田真太郎, 工藤孔梨子, 富松俊太, 清水周次, 森山智彦
    • Organizer
      第25回日本遠隔医療学会学術大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Students’ perspective toward the rapid shift to online teaching due to the COVID-19 pandemic:a case at Kyushu University School of Medicine2021

    • Author(s)
      Ueda S, Kudo K, Tomimatsu S, Moriyama T, Shimizu S
    • Organizer
      日本教育工学会 2021年春季全国大会
    • Related Report
      2020 Research-status Report
  • [Presentation] Developing Course Objectives for Engineering Training Programs in Remote Medical Education in Asia2021

    • Author(s)
      Kudo K, Ueda S, Tomimatsu S, Antoku Y, Kudo T, Kimura T, Moriyama T, Isobe N, Shimizu S
    • Organizer
      日本教育工学会 2021年春季全国大会
    • Related Report
      2020 Research-status Report
  • [Presentation] リアルタイム双方向型オンラインでの学術集会に対する技術支援の実施および参加者からの評価:日本泌尿器科学会福岡地方会の例2021

    • Author(s)
      富松俊太, 工藤孔梨子, 上田真太郎, 森山智彦, 平井康之, 江藤正俊, 清水周次
    • Organizer
      第24回日本遠隔医療学会学術大会
    • Related Report
      2020 Research-status Report
  • [Presentation] Barriers against and Improvement Measures of Discussion during Bilateral Video-conferencing in an Early Gastric Cancer Case Study2020

    • Author(s)
      Ueda S, Kudo K, Moriyama T, Tomimatsu S, Shimizu S
    • Organizer
      11th Biennial Conference of the Asia-Pacific Association for Medical Informatics (APAMI2020)(国際学会)
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] How to Activate Interaction in Remote Medical Education:Findings from Endoscopy Teleconference with Russia2020

    • Author(s)
      Shintaro Ueda
    • Organizer
      14th Asia Telemedicine Symposium
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] 国内外の遠隔医療教育における技術的課題2020

    • Author(s)
      上田真太郎
    • Organizer
      遠隔医療とデータ・ガバナンスの共創
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Participants’ Evaluation of a Virtual Academic Conference: Report from the 24th Japan Association of Medical Informatics Spring Symposium2020

    • Author(s)
      Kudo K, Ueda S, Shitoh H, Narikiyo T, Tomimatsu S, Watanabe S, Nakahara T, Nakashima N, Moriyama T, Nakano T, Shimizu S
    • Organizer
      11th Biennial Conference of the Asia-Pacific Association for Medical Informatics (APAMI2020)(国際学会)
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] 日本の国立大学病院における国際化対応の現状と課題:ICTを用いた遠隔教育の視点から2020

    • Author(s)
      工藤孔梨子, 磯部紀子, 森山智彦, 上田真太郎, 富松俊太, 波々伯部佳子, 中島直樹, 清水周次
    • Organizer
      グローバルヘルス合同大会2020
    • Related Report
      2020 Research-status Report
  • [Presentation] An Exploratory Analysis of Technical Issues in Remote Education between International Medical Institutions2020

    • Author(s)
      Tomimatsu S, Kudo K, Shimizu S, Moriyama T, Ueda S, Hirai Y
    • Organizer
      Applied Human Factors and Ergonomics 2020 (国際学会)
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Technical Support for Rapid Replacement of Face to face Events with Online Events due to the COVID 19 Pandemic: a Case Study from Kyushu University Hospital2020

    • Author(s)
      Tomimatsu S, Kudo K, Moriyama T, Ueda S, Hirai Y, Shimizu S
    • Organizer
      11th Biennial Conference of the Asia-Pacific Association for Medical Informatics (APAMI2020)(国際学会)
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Technical updates on Myanmar VC situation -Known issues and how to solve them-2020

    • Author(s)
      Shintaro Ueda
    • Organizer
      Second Myanmar Telemedicine Workshop
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Technical Issues in Telemedicine Conferences2019

    • Author(s)
      Shintaro Ueda
    • Organizer
      1st Telemedicine Workshop in Kyrgyzstan
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Technical Review for Russia Session2019

    • Author(s)
      Shintaro Ueda
    • Organizer
      APAN48 Medical Working Group TET Engineering Workshop
    • Related Report
      2019 Research-status Report
  • [Presentation] Introduction and Hands-on Training of Video Conferencing Systems2019

    • Author(s)
      Shintaro Ueda
    • Organizer
      First Bhutan Telemedicine Workshop
    • Related Report
      2019 Research-status Report
    • Invited
  • [Book] Telemedical education in Asia (Mobile technologies for delivering healthcare in remote, rural or developing regions)2020

    • Author(s)
      Shimizu S, Kudo K, Moriyama T, Tomimatsu S, Ueda S, Nakashima N
    • Total Pages
      400
    • Publisher
      The Institution of Engineering and Technology, London
    • Related Report
      2020 Research-status Report
  • [Book] An Exploratory Analysis of Technical Issues in Remote Education between International Medical Institutions (Advances in Usability, User Experience, Wearable and Assistive Technology)2020

    • Author(s)
      Tomimatsu S, Kudo K, Shimizu S, Moriyama T, Ueda S, Hirai Y
    • Total Pages
      1411
    • Publisher
      Springer International Publishing, New York
    • Related Report
      2020 Research-status Report

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

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