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Visualization of culprit perforating artery in subcortical infarction using 3D MRI and angiography fusion image

Research Project

Project/Area Number 20K16716
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 52040:Radiological sciences-related
Research InstitutionFujita Health University (2023)
National Cardiovascular Center Research Institute (2020-2022)

Principal Investigator

Koge Junpei  藤田医科大学, 医学部, 講師 (90866732)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords脳梗塞 / 穿通枝 / 脳血管造影 / MRI / 融合画像 / 穿通枝梗塞
Outline of Research at the Start

脳皮質下、脳幹など脳血管の穿通枝領域の梗塞のうち、Branch atheromatous disease (BAD)は、進行性かつ重度の後遺症を生じ得る重要な病型である。しかし、従来のMRやCTIでは、細径の穿通枝や近傍の動脈硬化性病変を描出することが困難なため、その実態は病理所見から提唱された概念の域を出ていない。本研究では、穿通枝血管を描出可能な脳血管造影による3D rotational angiographyと、MRI画像を高い再現性、正確性で融合なアプリケーションを開発し、穿通枝血管近傍の動脈硬化や穿通枝自体の微小な動脈硬化を分析し、BADの病態解明に資する研究成果を提供する。

Outline of Final Research Achievements

Visualizing the culprit perforating artery in subcortical infarction using in vivo imaging is challenging. We aimed to identify the culprit perforating arteries in subcortical infarctions and assess their morphology using an image fusion technique. Images were registered using an original fusion software. Of 118 patients, the culprit perforating artery was identified in 52 patients (44%). 27 (61%) patients exhibited stenosis in the proximal segment. Atrial fibrillation was more frequent in patients without stenosis in the proximal segment of the culprit perforating artery than in those with stenosis. The morphological characteristics of the culprit perforating arteries assessed using 3D-RA may be linked to the etiological mechanism of stroke. Our approach may potentially improve the accessibility and convenience of perforating artery evaluation, which could improve the diagnosis of stroke etiology in patients with subcortical infarctions.

Academic Significance and Societal Importance of the Research Achievements

本研究により、高解像度の拡大3D回転脳血管造影画像と3DMRIを正確に融合し、穿通枝領域の脳梗塞の原因となる責任穿通血管を可視化、同定する手法が確立された。穿通枝梗塞の中でも進行性かつ重度の後遺症を生じ得るbranch atheromatous disease (BAD)の存在が病理所見から提唱されているが、本研究で認められた責任穿通血管の近位部の狭窄はBADを生体の画像で示した重要な所見と考える。また、責任穿通血管の中には明らかな狭窄を認めない例も存在しており、穿通枝領域への塞栓症を示唆する所見と考えられる。本手法を用いた穿通枝自体の評価は穿通枝領域の脳梗塞の病型診断に有用と考える。

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

    (5 results)

All 2024 2023 2021

All Presentation (5 results) (of which Int'l Joint Research: 2 results)

  • [Presentation] 脳血管造影とMRIの融合画像を用いた 穿通枝梗塞の責任穿通枝の可視化2024

    • Author(s)
      高下純平
    • Organizer
      第49回日本脳卒中学会学術集会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Evaluation of culprit perforating artery in single subcortical infarction by fusion image of 3D rotational angiography and MRI2024

    • Author(s)
      小椋史織
    • Organizer
      16th World Stroke Congress
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Three-dimensional MRI and angiography fusion image for subcortical infarction: Can fusion images assess culprit perforating artery?2023

    • Author(s)
      高下純平
    • Organizer
      9th European Stroke Organization Conference
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Three-dimensional MRI and angiography fusion image for subcortical infarction: Can fusion images assess culprit perforating artery?2023

    • Author(s)
      高下純平
    • Organizer
      European Stroke Organization Conference 2023
    • Related Report
      2022 Research-status Report
  • [Presentation] 頭部MRIと脳血管造影の融合画像を用いたBranch atheromatous diseaseの責任穿通枝血管評価2021

    • Author(s)
      小椋史織
    • Organizer
      第46回日本脳卒中学会学術集会
    • Related Report
      2020 Research-status Report

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

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