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Quantification of SPECT myocardial perfusion imaging using coronary artery-based myocardial segmentation in CT/SPECT fusion images

Research Project

Project/Area Number 20K07998
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 52040:Radiological sciences-related
Research InstitutionNational Hospital Organization Shikoku Cancer Center (2021-2023)
Ehime University (2020)

Principal Investigator

Kurata Akira  独立行政法人国立病院機構四国がんセンター(臨床研究センター), その他部局等, 医長 (40423438)

Co-Investigator(Kenkyū-buntansha) 城戸 輝仁  愛媛大学, 医学系研究科, 教授 (50403837)
田邊 裕貴  愛媛大学, 医学部附属病院, 助教(病院教員) (70836189)
Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2022: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2021: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords画像診断 / 心筋虚血 / リスク領域 / 冠動脈疾患 / computed tomography / 心臓核医学 / 冠動脈支配領域 / 心筋血流 / 心筋梗塞 / 定量評価 / CT / 支配領域 / Computed tomography / 融合画像
Outline of Research at the Start

本研究は,ボロノイ図という「平面や空間を与えられた点または線で二等分する数学的アルゴリズム」を用いた分割方法を,冠動脈狭窄と心筋虚血の程度を一度に評価するCT/SPECT融合画像の中に統合することで,冠動脈狭窄枝の支配灌流域にある核医学検査の心筋血流製剤の集積をより正確に定量評価し,心臓核医学検査の新たな評価方法を開発することを目的とする.この評価方法によって,狭心症症例の冠動脈病変の個々の重症度を正確に評価することが可能にあり,残存狭窄枝の虚血評価や予後評価だけでなく,治療後の心筋血流SPECTの結果を組み込むことで狭窄枝ごとの治療効果判定などの詳細な評価が可能になると考える.

Outline of Final Research Achievements

In this study, we developed a new evaluation method that can quantitatively evaluate myocardial perfusion with single photon emission computed tomography (SPECT) in the culprit coronary artery lesion-related myocardial perfusion area more accurately by integrating a technique for coronary artery-related myocardial segmentation (CAMS) using a mathematical algorithm called a Voronoi diagram on cardiac CT data with SPECT myocardial perfusion imaging.
Compared with the conventional method that combines 17 left ventricular segments and a visual 5-grading scale, the study showed that the present method could quantitatively evaluate the severity of myocardial ischemia and myocardial infarction area caused by individual stenotic lesions in patients with coronary artery disease (CAD) performed cardiac CT and stress Thallium-201 SPECT-MPI. We concluded the CAMS-based SPECT-MPI quantification can be a feasible method for treatment strategies of CAD.

Academic Significance and Societal Importance of the Research Achievements

SPECT心筋かん流イメージングでは、冠動脈疾患の診断・重症度評価・予後予測には、左心室17セグメントと視覚的5段階のスコア評価を組み合わせた方法が標準的に利用されている。
本研究で検証した、心臓CTによる冠動脈支配領域の抽出技術とSPECTの心筋血流イメージングを統合した評価方法は、個別の冠動脈病変の支配領域におけるSPECT核種の心筋への取り込みを定量すること可能であり、はじめの診断や治療選択の決定だけでなく、治療前の心臓CTデータを治療後のSPECTデータと統合して評価することで治療効果の評価やフォローアップも定量的に評価することも可能になると考える。

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

    (10 results)

All 2023 2021 2020 Other

All Int'l Joint Research (1 results) Journal Article (5 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 5 results,  Open Access: 5 results) Presentation (4 results) (of which Int'l Joint Research: 2 results,  Invited: 4 results)

  • [Int'l Joint Research] Vrije Universiteit Amsterdam/Stanford University/Weill-Cornell Medical College(オランダ)

    • Related Report
      2020 Research-status Report
  • [Journal Article] Voronoi Diagram-Guided Septal Ablation for Patients With Hypertrophic Obstructive Cardiomyopathy2023

    • Author(s)
      Uetani Teruyoshi、Inaba Shinji、Higashi Haruhiko、Nishimura Kazuhisa、Inoue Katsuji、Nishiyama Hikaru、Tanabe Yuki、Kurata Akira、Ikeda Shuntaro、Kido Teruhito、Yamaguchi Osamu
    • Journal Title

      Circulation: Cardiovascular Imaging

      Volume: 16 Issue: 6

    • DOI

      10.1161/circimaging.122.014895

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] JCS 2018 Guideline on Diagnosis of Chronic Coronary Heart Diseases2021

    • Author(s)
      Yamagishi Masakazu、Tamaki Nagara、Akasaka Takashi、Ikeda Takanori、Ueshima Kenji、Uemura Shiro、----------------、Kurata Akira、---、Yasuda Satoshi、Yoshino Hideaki、on behalf of the Japanese Circulation Society Working Group
    • Journal Title

      Circulation Journal

      Volume: 85 Issue: 4 Pages: 402-572

    • DOI

      10.1253/circj.CJ-19-1131

    • NAID

      130008003075

    • ISSN
      1346-9843, 1347-4820
    • Year and Date
      2021-03-25
    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Diagnostic value of comprehensive on-site and off-site coronary CT angiography for identifying hemodynamically obstructive coronary artery disease2021

    • Author(s)
      Bom Michiel J.、Driessen Roel S.、Kurata Akira、van Diemen Pepijn A.、Everaars Henk、Schumacher Stefan P.、de Winter Ruben W.、van de Ven Peter M.、van Rossum Albert C.、Taylor Charles A.、Min James K.、Leipsic Jonathon A.、Danad Ibrahim、Knaapen Paul
    • Journal Title

      Journal of Cardiovascular Computed Tomography

      Volume: 15 Issue: 1 Pages: 37-45

    • DOI

      10.1016/j.jcct.2020.05.002

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Combined assessment of subtended myocardial volume and myocardial blood flow for diagnosis of obstructive coronary artery disease using cardiac computed tomography: A feasibility study2020

    • Author(s)
      Tanabe Yuki、Kido Teruhito、Kurata Akira、Uetani Teruyoshi、Kuwahara Natsumi、Morikawa Tomoro、Kawaguchi Naoto、Kido Tomoyuki、Nishimura Kazuhisa、Ikeda Shuntaro、Yamaguchi Osamu、Mochizuki Teruhito
    • Journal Title

      Journal of Cardiology

      Volume: 76 Issue: 3 Pages: 259-265

    • DOI

      10.1016/j.jjcc.2020.03.006

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Coronary artery stenosis-related perfusion ratio using dynamic computed tomography myocardial perfusion imaging: a pilot for identification of hemodynamically significant coronary artery disease2020

    • Author(s)
      Kuwahara Natsumi、Tanabe Yuki、Kido Teruhito、Kurata Akira、Uetani Teruyoshi、Ochi Hitomi、Kawaguchi Naoto、Kido Tomoyuki、Ikeda Shuntaro、Yamaguchi Osamu、Asano Migiwa、Mochizuki Teruhito
    • Journal Title

      Cardiovascular Intervention and Therapeutics

      Volume: 35 Issue: 4 Pages: 327-335

    • DOI

      10.1007/s12928-019-00627-4

    • NAID

      40022375362

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Cardiac CT-based therapeutic strategies for CAD2023

    • Author(s)
      Akira Kurata
    • Organizer
      Current status and Challenages of Coronary artery disease and Aortic valvular heart disease 2023
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 心臓 CT の融合画像2021

    • Author(s)
      倉田 聖
    • Organizer
      第 31 回日本心血管画像動態学会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Coronary CT angiography based myocardial segmentation2021

    • Author(s)
      Akira Kurata
    • Organizer
      Conjoint session of the AOSR and the RSK - cardiothoracic radiology
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Cardiac CT perfusion: How to interplay with coronary CTA2020

    • Author(s)
      Akira Kurata
    • Organizer
      Cardiac CT Educational Course 2020: Taiwan Radiological Society, Asian Society of Cardiovascular Imaging Joint Symposium
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited

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

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