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Development of ICG fluorescence contrast imaging analysis system specialized for evaluation of peripheral tissue blood circulation

Research Project

Project/Area Number 19K18925
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 56070:Plastic and reconstructive surgery-related
Research InstitutionThe University of Tokyo

Principal Investigator

Mito Daisuke  東京大学, 医学部附属病院, 届出研究員 (80746412)

Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2022: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2021: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2020: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2019: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywordsインドシアニングリーン蛍光造影法 / インドシアニングリーン / 蛍光造影法 / リンパ浮腫 / リンパ管静脈吻合術 / デジタル手術用顕微鏡 / 画像処理 / ICG血管造影 / ICG蛍光造影法 / 組織血液灌流 / 三次元再構成 / 蛍光 / 遊離組織移植 / コンピュータービジョン
Outline of Research at the Start

軟部組織内の脈管におけるより微視的、かつ3次元的なICG蛍光造影を行うための機器開発に際し、ヒト脈管およびヒト皮弁を模したラットモデルを用いて実験を行う。2点間からの蛍光造影像のソフトウェア処理、統合による軟部組織内脈管の3次元化と、作成された皮弁モデル内の経時的な血行灌流域および組織学的な変化について観察を行う。

Outline of Final Research Achievements

A study was conducted in three phases to develop a more accurate and reliable method of evaluating tissue perfusion in implanted skin valves during reconstructive surgery in real-time. The aim was to optimize imaging equipment and analysis methods. The development process comprised the following phases:(1)Optimization of the imaging system, (2)Simultaneous imaging of ICG fluorescence images from multiple directions, three-dimensional reconstruction, and three-dimensional subcutaneous vascular network distribution, (3)Development and optimization of the imaging system in animal experiments to investigate the relationship between analysis results and tissue viability in animal models.

Academic Significance and Societal Importance of the Research Achievements

再建外科手術では、血管柄付きで移植された組織の血行動態が重要である。そのため、インドシアニングリーン(ICG)蛍光血管造影法が末梢皮膚弁領域の血行動態評価に適用されているが、精度や信頼性に限界がある。より正確で信頼性の高い末梢組織血流評価法を開発、研究した。
本研究において組織の血行動態に関する信頼性の高い情報を提供するための計測機器開発と実装に成功した。本手法を用いた生体での研究データをさらに蓄積することで、再建手術における皮弁生着領域に関する予測率の向上が期待され、ICG蛍光造影の新たな方向性を示すことができた。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (12 results)

All 2022 2021 2020 2019

All Journal Article (6 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 6 results,  Open Access: 2 results) Presentation (4 results) Patent(Industrial Property Rights) (2 results) (of which Overseas: 1 results)

  • [Journal Article] Use of Microscope-Integrated Near-Infrared Fluorescence for Enhancing Deep Lymphatic Vessel Detection during Supermicrosurgical Lymphaticovenous Anastomosis: A Longitudinal Cohort Study2022

    • Author(s)
      Mito Daisuke、Wang Yu-Ming、Wu Shao-Chun、Lin Wei-Che、Tsai Pei-Yu、Hsieh Ching-Hua、Yang Johnson Chia-Shen
    • Journal Title

      Plastic & Reconstructive Surgery

      Volume: 149 Issue: 5 Pages: 1227-1233

    • DOI

      10.1097/prs.0000000000009050

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Optimized 3D-printed template design for production of silicone skin chambers.2022

    • Author(s)
      Du Z, Shen Q, Mito D, Kato M, Okazaki M, Kurita M.
    • Journal Title

      J Dermatol Sci.

      Volume: 105 Issue: 1 Pages: 55-57

    • DOI

      10.1016/j.jdermsci.2021.11.006

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Microsurgical Lymphovenous Anastomosis for Pelvic Lymphoceles after Gynecological Cancer Surgery2022

    • Author(s)
      Yamashita Shuji、Kitamura Yutaro、Fujisawa Kou、Mito Daisuke、Tomioka Yoko、Kurita Masakazu、Miyamoto Shimpei、Iida Takuya、Okazaki Mutsumi
    • Journal Title

      Journal of Plastic, Reconstructive and Aesthetic Surgery

      Volume: 75 Issue: 3 Pages: 1142-1149

    • DOI

      10.1016/j.bjps.2021.09.056

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Establishing a Lymphatic Venous Anastomotic Training Model in Pig Trotters2021

    • Author(s)
      Kato Motoi、Kurita Masakazu、Mito Daisuke、Nakamura Runa、Li Kexin、Yamashita Shuji、Okazaki Mutsumi
    • Journal Title

      Journal of Reconstructive Microsurgery

      Volume: - Issue: 08 Pages: 682-686

    • DOI

      10.1055/s-0041-1726026

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Secondary Vulvar Reconstruction Using Bilateral Gluteal Fold Flaps after Radical Vulvectomy with Direct Closure2021

    • Author(s)
      Roh Solji、Miyamoto Shimpei、Kitamura Yutaro、Mito Daisuke、Okazaki Mutsumi
    • Journal Title

      Plastic and Reconstructive Surgery - Global Open

      Volume: 9 Issue: 4 Pages: e3550-e3550

    • DOI

      10.1097/gox.0000000000003550

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Miniaturization of Indocyanine Green Fluorescence Imaging Device Using a Smartphone2020

    • Author(s)
      Mito Daisuke、Kurita Masakazu、Miyamoto Shimpei、Okazaki Mutsumi
    • Journal Title

      Plastic and Reconstructive Surgery

      Volume: 145 Issue: 1 Pages: 230e-232e

    • DOI

      10.1097/prs.0000000000006365

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] 若手医師の起業のすすめ2022

    • Author(s)
      御任大輔、中川雅裕
    • Organizer
      第31回日本形成外科学会基礎学術集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] インドシアニングリーンを用いた蛍光造影検査で静脈の開通性の評価を行った一例2021

    • Author(s)
      御任大輔、黒住健人、乾貴博、松井健太郎、石井桂輔、鈴木卓、渡部欽忍、河野博隆
    • Organizer
      日本骨折治療学会
    • Related Report
      2021 Research-status Report
  • [Presentation] ICG蛍光造影における 撮影機器の最適化2019

    • Author(s)
      御任大輔、栗田昌和、宮本慎平、岡崎睦
    • Organizer
      第62回日本形成外科学会総会・学術集会
    • Related Report
      2019 Research-status Report
  • [Presentation] インドシアニングリーンを用いた 抗菌光線力学療法についての検討2019

    • Author(s)
      御任大輔、栗田昌和、宮本慎平、岡崎睦
    • Organizer
      第28回日本形成外科学会基礎学術集会
    • Related Report
      2019 Research-status Report
  • [Patent(Industrial Property Rights)] 手術用デジタル顕微鏡システムおよび手術用デジタル顕微鏡システムの表示制御方法2022

    • Inventor(s)
      御任大輔
    • Industrial Property Rights Holder
      帝京大学病院
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2021-181130
    • Filing Date
      2022
    • Related Report
      2022 Annual Research Report
    • Overseas
  • [Patent(Industrial Property Rights)] 手術用デジタル顕微鏡システムおよび手術用デジタル顕微鏡システムの制御方法2021

    • Inventor(s)
      御任大輔
    • Industrial Property Rights Holder
      帝京大学 産学連携推進センター
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2021-181130
    • Filing Date
      2021
    • Related Report
      2021 Research-status Report

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Published: 2019-04-18   Modified: 2024-01-30  

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