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Development of a Novel Reconstructive Technique for Esophageal Surgery Using ICG Fluorescence Blood Flow Visualization and Artificial Intelligence Analysis

Research Project

Project/Area Number 20K09010
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 55020:Digestive surgery-related
Research InstitutionKochi University

Principal Investigator

Kitagawa Hiroyuki  高知大学, 教育研究部医療学系臨床医学部門, 講師 (10403883)

Co-Investigator(Kenkyū-buntansha) 岩部 純  高知大学, 医学部附属病院, その他 (00553877)
並川 努  高知大学, 教育研究部医療学系臨床医学部門, 講師 (50363289)
花崎 和弘  高知大学, 教育研究部医療学系臨床医学部門, 教授 (30240790)
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 2022: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2021: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2020: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords食道外科 / 縫合不全 / 胃管再建 / 血流評価 / ICG蛍光法 / Time intensity curve / プログラミング / 食道手術 / 食道がん / 再建 / 血流 / インドシアニングリーン / 近赤外線蛍光法 / 人工知能 / 食道癌 / 近赤外線 / 胃管 / 臓器血流
Outline of Research at the Start

食道切除術・胃管再建術は食道癌に対する標準的術式であるが、他の消化器癌手術と比較して術後の縫合不全発生率が高い。われわれはICG蛍光法を用いた術中の胃管血流評価が術後縫合不全発生率や吻合部の内視鏡所見と相関することを報告してきた。しかし、ICG蛍光法は可視化による評価に優れていても、定量化による客観的評価が出来ない欠点を有してる。
本基盤研究の目的は、食道癌術後の縫合不全発生率の減少を目指して、再建臓器血流評価においてICG蛍光法による可視化と人工知能解析による定量化を組み合わせた革新的な新規再建技術の開発である。

Outline of Final Research Achievements

The purpose of this study was to establish a quantitative evaluation method of blood flow in esophageal cancer surgery by constructing a time-intensity curve (TIC) from videos of blood flow evaluation of reconstructed gastric tubes by ICG fluorescence method. Four regions of interest (ROIs) were set around the planned anastomosis of the elevated gastric tube, and TICs were constructed by programming using the OpenCV Library in Python to examine the relationship with the incidence of anastomotic leakage.
Of 97 cases, TIC was successfully constructed in 65 cases, and the causes of TIC failure were gastric tube movement during imaging and poor fluorescence intensity. The intensity starting point of the ROI was faster than the ICG visualization time by visual assessment by the surgeon, suggesting the sensitivity of TIC evaluation. The group with anastomotic leakage tended to have a slower intensity starting point in ROI 3 (22.5 vs. 19.0 s; P=0.087).

Academic Significance and Societal Importance of the Research Achievements

本研究によって手術動画からプログラミングを用いてTICを構成する場合に障害となる要素を抽出することができた。この結果をもとに信頼性の高いTIC構成されることで、術中蛍光輝度評価の客観的かつ定量的評価方法が、および縫合不全を回避する血流評価方法が確立されることが期待される。

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

    (16 results)

All 2024 2023 2022 2021 2020 Other

All Journal Article (9 results) (of which Peer Reviewed: 9 results,  Open Access: 4 results) Presentation (6 results) (of which Int'l Joint Research: 2 results) Remarks (1 results)

  • [Journal Article] Blood flow evaluation of reconstructed gastric tube in esophageal surgery using near-infrared imaging and retrospective time-intensity curve analysis2024

    • Author(s)
      Yamamoto Nao、Kitagawa Hiroyuki、Orihashi Kazumasa、Yokota Keiichiro、Namikawa Tsutomu、Seo Satoru
    • Journal Title

      Langenbeck's Archives of Surgery

      Volume: 409 Issue: 1 Pages: 90-90

    • DOI

      10.1007/s00423-024-03284-1

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Near-infrared fluorescence imaging with indocyanine green to assess the blood supply of the reconstructed gastric conduit to reduce anastomotic leakage after esophagectomy: a literature review2022

    • Author(s)
      Kitagawa Hiroyuki、Yokota Keiichiro、Marui Akira、Namikawa Tsutomu、Kobayashi Michiya、Hanazaki Kazuhiro
    • Journal Title

      Surgery Today

      Volume: 53 Issue: 4 Pages: 399-408

    • DOI

      10.1007/s00595-022-02474-y

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] A descriptive comparison of postoperative outcomes between hybrid mediastino-thoracoscopic approach and conventional thoracoscopic esophagectomy for esophageal cancer2022

    • Author(s)
      Kitagawa Hiroyuki、Yokota Keiichiro、Utsunomiya Masato、Namikawa Tsutomu、Kobayashi Michiya、Hanazaki Kazuhiro
    • Journal Title

      Surgical Endoscopy

      Volume: 37 Issue: 4 Pages: 2949-2957

    • DOI

      10.1007/s00464-022-09818-2

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Frequency and prognostic impact of cachexia during drug treatment for unresectable advanced gastric cancer patients2022

    • Author(s)
      Namikawa Tsutomu、Marui Akira、Yokota Keiichiro、Fujieda Yuki、Munekage Masaya、Uemura Sunao、Maeda Hiromichi、Kitagawa Hiroyuki、Kobayashi Michiya、Hanazaki Kazuhiro
    • Journal Title

      Surgery Today

      Volume: 52 Issue: 11 Pages: 1560-1567

    • DOI

      10.1007/s00595-022-02493-9

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Laparoscopic total gastrectomy for concurrent gastric cancer and complete agenesis of the dorsal pancreas2022

    • Author(s)
      Namikawa Tsutomu、Utsunomiya Masato、Yokota Keiichiro、Kawanishi Yasuhiro、Munekage Masaya、Uemura Sunao、Maeda Hiromichi、Kitagawa Hiroyuki、Kobayashi Michiya、Hanazaki Kazuhiro
    • Journal Title

      Asian Journal of Endoscopic Surgery

      Volume: 16 Issue: 2 Pages: 266-270

    • DOI

      10.1111/ases.13129

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Ureteral rupture with retroperitoneal urinoma caused by peritoneal metastases of gastric cancer2022

    • Author(s)
      Namikawa Tsutomu、Yokota Keiichiro、Munekage Masaya、Uemura Sunao、Maeda Hiromichi、Kitagawa Hiroyuki、Tamura Takahiko、Karashima Takashi、Inoue Keiji、Kobayashi Michiya、Hanazaki Kazuhiro
    • Journal Title

      International Cancer Conference Journal

      Volume: 12 Issue: 1 Pages: 53-58

    • DOI

      10.1007/s13691-022-00578-3

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Staple Line Reinforcement for Intracorporeal Anastomosis Reduces Time for Reconstruction During Laparoscopic Gastrectomy for Gastric Cancer2022

    • Author(s)
      NAMIKAWA TSUTOMU、UTSUNOMIYA MASATO、YOKOTA KEIICHIRO、MUNEKAGE MASAYA、UEMURA SUNAO、MAEDA HIROMICHI、KITAGAWA HIROYUKI、KOBAYASHI MICHIYA、HANAZAKI KAZUHIRO、SEO SATORU
    • Journal Title

      Anticancer Research

      Volume: 43 Issue: 1 Pages: 175-181

    • DOI

      10.21873/anticanres.16147

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Neutrophil-to-lymphocyte ratio and C-reactive protein-to-albumin ratio as prognostic factors for unresectable advanced or recurrent gastric cancer2021

    • Author(s)
      Namikawa Tsutomu、Shimizu Shigeto、Yokota Keiichiro、Tanioka Nobuhisa、Munekage Masaya、Uemura Sunao、Maeda Hiromichi、Kitagawa Hiroyuki、Kobayashi Michiya、Hanazaki Kazuhiro
    • Journal Title

      Langenbeck's Archives of Surgery

      Volume: 407 Issue: 2 Pages: 609-621

    • DOI

      10.1007/s00423-021-02356-w

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Correlation between indocyanine green visualization time in the gastric tube and postoperative endoscopic assessment of the anastomosis after esophageal surgery2020

    • Author(s)
      Kitagawa H, Namikawa T, Iwabu J, Yokota K, Uemura S, Munekage M, Hanazaki K.
    • Journal Title

      Surg Today.

      Volume: 50 Issue: 11 Pages: 1375-1382

    • DOI

      10.1007/s00595-020-02025-3

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] Blood flow evaluation of reconstructed gastric tube in esophageal surgery using near-infrared imaging and retrospective time intensity curve analysis.2024

    • Author(s)
      Kitagawa H, Yamamoto N, Yokota K, Orihashi K, Utusnomiya M, Namikawa T, Seo S.
    • Organizer
      The 3rd annual meeting of AP-ISFGS
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Blood Flow Arrival Time Before and After Elevation of Reconstructed Gastric Tube in Esophageal Surgery Using ICG Near-Infrared Fluorescence.2023

    • Author(s)
      Kitagawa H, Yokota K, Utsunomiya M, Munekage M, Namikawa T, Kobayashi M, Seo S.
    • Organizer
      the 36th Congress of the Pan-Pacific Surgical Association,Japan Chapter.
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 食道切除胃管再建におけるICG蛍光法と組織酸素飽和度モニターを用いた血流定量化2022

    • Author(s)
      北川博之、横田啓一郎、丸井輝、並川努、花崎和弘
    • Organizer
      第122回日本外科学会定期学術集会
    • Related Report
      2022 Research-status Report
  • [Presentation] 食道癌手術胃管再建における近赤外線蛍光法の使用タイミング2022

    • Author(s)
      北川博之、横田啓一郎、宇都宮正人、並川努、花崎和弘
    • Organizer
      第65回関西胸部外科学会学術集会
    • Related Report
      2022 Research-status Report
  • [Presentation] 食道癌手術における近赤外線蛍光法を用いた胃管血流評価-胃管挙上後蛍光時間の意義とその因子の検討2022

    • Author(s)
      北川博之、横田啓一郎、宇都宮正人、並川努、花崎和弘
    • Organizer
      第76回日本食道学会学術集会
    • Related Report
      2022 Research-status Report
  • [Presentation] 食道切除術胃管再建におけるICG蛍光法を用いた胃管血流境界の可視化2020

    • Author(s)
      北川 博之、岩部 純、横田 啓一郎、前田 将宏、並川 努、花﨑 和弘
    • Organizer
      日本蛍光ガイド手術研究会第3回学術集会
    • Related Report
      2020 Research-status Report
  • [Remarks] 論文

    • URL

      https://pubmed.ncbi.nlm.nih.gov/35182253/

    • Related Report
      2021 Research-status Report

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

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