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Development of next-generation imaging for assessing the pathophysiology of epicardial adipose tissue using deep learning and multi-tracer

Research Project

Project/Area Number 21K08127
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 53020:Cardiology-related
Research InstitutionHiroshima University

Principal Investigator

Kitagawa Toshiro  広島大学, 医系科学研究科(医), 講師 (70633709)

Co-Investigator(Kenkyū-buntansha) 檜垣 徹  広島大学, 先進理工系科学研究科(工), 准教授 (80611334)
立神 史稔  広島大学, 病院(医), 講師 (90411355)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2023: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2022: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Keywords心外膜下脂肪 / イメージング / 深層学習 / マルチトレーサー
Outline of Research at the Start

心臓の周囲に存在する内臓脂肪である心外膜下脂肪(EAT)がどのように心臓病やその重症度と関連しているかに着目し、心臓手術中に採取したEATの組織検体を用いた解析を実行し、深層学習やPET用の様々な試薬等を活用した画像診断の開発を目指します。心臓の血管(冠動脈)、心臓の筋肉(心筋)や弁膜とEATの評価を組み合わせた画像技術により、新たな心血管病の評価、診断手法の確立に繋げることを目的としています。

Outline of Final Research Achievements

Through the analyses of computed tomography (CT) images acquired prior to surgery and epicardial adipose tissue (EAT) obtained during cardiac surgery, we have demonstrated that inflammation and osteogenesis in EAT are associated with the progression of aortic valve calcification, and that CT density can be utilized as an imaging marker to reflect such biological characteristics of EAT. We have demonstrated that 18F sodium fluoride (NaF) uptake in coronary atherosclerotic lesions is a useful predictor of coronary events. We have shown previously that high CT density of EAT surrounding coronary atherosclerotic lesions is associated with greater 18F-NaF uptake, thus our current results suggest the promising potential of the new imaging strategy using CT and 18F-NaF PET.

Academic Significance and Societal Importance of the Research Achievements

本研究では、心外膜下脂肪組織(EAT)における炎症や石灰化という性質が大動脈弁石灰化の進展に密接に関わっており、大動脈弁狭窄症などの大動脈弁疾患の進展にEATが関与している可能性を示した。また、そのようなEATの病的な性質を知るための臨床指標として、CT値を用いたイメージングマーカーが活用できる可能性を示した。さらに、新たな試薬によるPET検査が重大な冠動脈疾患の予測に有用である可能性を示し、CTとPETを組み合わせた新たな循環器画像検査法を提唱した。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (12 results)

All 2024 2023 2022

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 1 results) Presentation (7 results) (of which Int'l Joint Research: 6 results,  Invited: 1 results)

  • [Journal Article] Relationship between clinical parameters and histological features of epicardial adipose tissue and aortic valve calcification assessed on computed tomography.2024

    • Author(s)
      Toshiro Kitagawa, Kazuhiro Sentani, Yuki Ikegami, Taiichi Takasaki, Shinya Takahashi, Yukiko Nakano
    • Journal Title

      Circulation Journal

      Volume: -

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The reliability and utility of on-site CT-derived fractional flow reserve (FFR) based on fluid structure interactions: comparison with FFRCT based on computational fluid dynamics, invasive FFR, and resting full-cycle ratio2023

    • Author(s)
      Yuto Fujii, Toshiro Kitagawa, Hiroki Ikenaga, Fuminari Tatsugami, Kazuo Awai, Yukiko Nakano.
    • Journal Title

      Heart and Vessels

      Volume: - Issue: 9 Pages: 1095-1107

    • DOI

      10.1007/s00380-023-02265-6

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] 18F-sodium fluoride positron emission tomography following coronary computed tomography angiography in predicting long-term coronary events: a 5-year follow-up study2023

    • Author(s)
      Toshiro Kitagawa, Ko Sasaki, Yuto Fujii, Yuki Ikegami, Fuminari Tatsugami, Kazuo Awai, Yutaka Hirokawa, Yukiko Nakano.
    • Journal Title

      Journal of Nuclear Cardiology

      Volume: - Issue: 6 Pages: 2365-2378

    • DOI

      10.1007/s12350-023-03277-5

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Native myocardial T1 value in predicting 1-year outcomes in patients with nonischemic dilated cardiomyopathy experiencing recent heart failure2022

    • Author(s)
      Toshiro Kitagawa, Fuminari Tatsugami, Kazushi Yokomachi, Yuji Akiyama, Yuto Fujii, Kazuo Awai, Yukiko Nakano
    • Journal Title

      International Heart Journal

      Volume: -

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] A longitudinal pilot study to assess temporal changes in coronary arterial 18F-sodium fluoride uptake2022

    • Author(s)
      Toshiro Kitagawa, Ko Sasaki, Yuto Fujii, Fuminari Tatsugami, Kazuo Awai, Yutaka Hirokawa, Yukiko Nakano
    • Journal Title

      Journal of Nuclear Cardiology

      Volume: - Issue: 3 Pages: 1158-1165

    • DOI

      10.1007/s12350-022-02975-w

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] Relationship Between Clinical Parameters and Histological Features of Epicardial Adipose Tissue and Aortic Valve Calcification Assessed on Computed Tomography2024

    • Author(s)
      Toshiro Kitagawa, Yuki Ikegami, Shinya Takahashi, Yukiko Nakano
    • Organizer
      The 88th Annual Scientific Meeting of the Japanese Circulation Society
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Innovative Coronary Artery Imaging via 18F-Sodium Fluoride Positron Emission Tomography Following Coronary Computed Tomography Angiography2024

    • Author(s)
      Toshiro Kitagawa, Yukiko Nakano
    • Organizer
      The 88th Annual Scientific Meeting of the Japanese Circulation Society
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 18F-NaF PETを用いた冠動脈分子イメージング2024

    • Author(s)
      北川知郎
    • Organizer
      Beyond Angiography Japan XXXVIII
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] The Relationship between Histological Features of Epicardial Adipose Tissue and Aortic Valve Calcification Assessed on Computed Tomography2023

    • Author(s)
      Toshiro Kitagawa, Kazuhiro Sentani, Yuki Ikegami, Taiichi Takasaki, Shinya Takahashi, Yukiko Nakano
    • Organizer
      American Heart Association scientific sessions 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 18F-Sodium Fluoride Positron Emission Tomography Following Coronary Computed Tomography Angiography in Predicting Major Coronary Events: a 5-Year Longitudinal Study2023

    • Author(s)
      Toshiro Kitagawa, Yuto Fujii, Yuki Ikegami, Yukiko Nakano
    • Organizer
      The 87th Annual Scientific Meeting of the Japanese Circulation Society
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 18F-Sodium Fluoride Positron Emission Tomography Following Coronary Computed Tomography Angiography in Predicting Major Coronary Events: a 5-Year Longitudinal Study2022

    • Author(s)
      Toshiro Kitagawa, Ko Sasaki, Yuto Fujii, Yuki Ikegami, Fuminari Tatsugami, Kazuo Awai, Yutaka Hirokawa, Yukiko Nakano
    • Organizer
      American Heart Association scientific sessions 2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Clinical Factors Related to Temporal Changes in Coronary Arterial 18F-Sodium Fluoride Uptake: A Longitudinal Follow-Up Study2022

    • Author(s)
      Toshiro Kitagawa, Yuto Fujii, Yukiko Nakano
    • Organizer
      The 86th Annual Scientific Meeting of the Japanese Circulation Society
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research

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Published: 2021-04-28   Modified: 2025-01-30  

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