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Application to treatment and control for lymphedema using real-time fluorescence imaging navigation system

Research Project

Project/Area Number 19K20669
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 90110:Biomedical engineering-related
Research InstitutionShiga University of Medical Science

Principal Investigator

Kawai Yuki  滋賀医科大学, 医学部, 非常勤講師 (10581944)

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: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords乳癌 / リンパ浮腫 / ICG蛍光造影法 / 用手的リンパドレナージ / ナビゲーション / 蛍光リンパ管造影 / リンパドレナージ / リンパ流路マッピング
Outline of Research at the Start

蛍光リンパ管造影システムを用いてリンパ流をリアルタイム に高感度で描出しながら、
(1)上肢リンパ流路マッピングと乳がん術後リンパ浮腫ハイリスク患者の同定、
(2)リンパ浮腫治療のための用手的リンパドレナージ手技を科学的に評価し改良、
(3)乳がん術後リンパ浮腫予防のため、温存すべき上肢リンパ流路を術中可視化しながらナビゲーション手術法の開発、
を行い、乳がん術後上肢リンパ浮腫発症の予防と、合理的なドレナージ手技 による治療成績の向上につなげる。

Outline of Final Research Achievements

We examined whether it could be applied as a navigation system that ICG lymphography, which visually captures lymphatic flow, provides scientific evaluation and improvement of the lymphedema treatment procedure of MLD, selection of high-risk patients with postoperative lymphedema after breast cancer, and preservation of upper limb lymphatic flow during axillary lymph node dissection. From the secondary lymphedema model of the rat tail, changes in lymphatic flow velocity and degree of improvement in lymphedema could be observed depending on the degree of compression and the speed of the drainage procedure. ICG lymphography in volunteers allowed lymphatic flow assessment based on mapping of upper limb lymphatic channels and outflow lymph node regions, and differences in MLD procedures. The efficiency of lymphatic flow induction to the collaterals by MLD was altered by many factors. Applied research for patients with postoperative lymphedema of breast cancer is a topic for the future.

Academic Significance and Societal Importance of the Research Achievements

本研究は、ICG蛍光造影法を用いてリアルタイムにリンパ流を可視化してMLD手技を評価できる事を示した。今後MLD手技の質の向上と技術革新が図られ、リンパ浮腫治療に独自の新たなエビデンスをもたらすことに繋がるであろう。また、発症頻度が2.5倍もある子宮癌・卵巣癌・前立腺癌術後の下肢リンパ浮腫治療へと応用が可能となり癌患者のQOL向上に寄与すると考えられる。

Report

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

    (5 results)

All 2020 2019

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (3 results) (of which Invited: 1 results)

  • [Journal Article] Radiation-induced osteosarcoma 15 years after breast cancer surgery: a case report and review of literature.2020

    • Author(s)
      澤田 佳奈, 梅田 朋子, 河合 由紀, 冨田 香, 北村 美奈, 辰巳 征浩, 油木 映里, 坂井 幸子, 加藤 久尚, 森 毅, 清水 智治, 安藤 厚生, 花岡 淳, 森谷 鈴子, 谷 眞至
    • Journal Title

      滋賀医科大学雑誌

      Volume: 33 Issue: 1 Pages: 1-4

    • DOI

      10.14999/1521.00012658

    • NAID

      120006841984

    • URL

      http://hdl.handle.net/10422/00012658

    • Year and Date
      2020-04-30
    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Infiltration of CD4, CD8, CD56, and Fox-P3-positive lymphocytes in breast carcinoma tissue after neoadjuvant chemotherapy with or without trastuzumab2020

    • Author(s)
      Itoi N, Umeda T, Ishida M, Murata S, Mori T, Kawai Y, Tomida K, Shimizu T, Kushima R, Tani M.
    • Journal Title

      Breast Dis.

      Volume: 38 Issue: 2 Pages: 57-65

    • DOI

      10.3233/bd-180350

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] HER2陽性乳がんの薬物療法のキホン2020

    • Author(s)
      河合由紀
    • Organizer
      第18回日本乳癌学会近畿地方会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] 当院における乳癌発見契機別の病期分布と術式について2019

    • Author(s)
      冨田香、河合由紀、他
    • Organizer
      第27回日本乳癌学会学術総会
    • Related Report
      2019 Research-status Report
  • [Presentation] AYA世代の乳がん患者と向き合う 若年乳癌の現状と課題2019

    • Author(s)
      河合由紀
    • Organizer
      第27回日本乳癌学会学術総会
    • Related Report
      2019 Research-status Report

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

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