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Assessment of unstable plaque by PET, CT, and MRI combination

Research Project

Project/Area Number 18H02769
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 52040:Radiological sciences-related
Research InstitutionKyoto Prefectural University of Medicine

Principal Investigator

Tamaki Nagara  京都府立医科大学, 医学(系)研究科(研究院), 特任教授 (30171888)

Co-Investigator(Kenkyū-buntansha) 小川 美香子  北海道大学, 薬学研究院, 教授 (20344351)
酒井 晃二  京都府立医科大学, 医学(系)研究科(研究院), 准教授 (20379027)
納谷 昌直  北海道大学, 大学病院, 講師 (20455637)
真鍋 治  東京医科歯科大学, 医学部附属病院, 特任助教 (40443957)
久下 裕司  北海道大学, アイソトープ総合センター, 教授 (70321958)
板谷 慶一  京都府立医科大学, 医学(系)研究科(研究院), 講師 (70458777)
真鍋 徳子  自治医科大学, 医学部, 教授 (70463742)
益田 淳朗  東北大学, 大学病院, 医員 (50769594)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2020: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2019: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2018: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000)
Keywords画像診断 / PET / 動脈硬化 / 活動性病変 / PET-CT / MRI / 不安定プラーク / 治療戦略 / PET-MRI / 包括的映像法
Outline of Final Research Achievements

Precise assessment of plaque characterization has recently been performed using various imaging modalities in order to identify unstable plaque. PET has been used for identifying active inflammation. CT provides precise assessment of macrocalcification with high spatial resolution images. Furthermore, MRI may identify lipid core and shear stress in the vessel walls.
We have performed immunohistochemical assessment for PET tracer uptake in experimental animal models. These experimental studies permit most suitable conditions for identifying unstable plaques using PET. The clinical studies have done to assess plaque characterization and identify unstable plaques with combined imaging of PET, CT, and MRI.
These experimental and clinical studied may permit most suitable non-invasive imaging for identifying unstable plaques and their tissue characterization in vivo.

Academic Significance and Societal Importance of the Research Achievements

加齢に伴い動脈硬化(プラーク)の形成が進むと共にプラークが破綻することで、心筋梗塞や脳梗塞が生じる。本検討ではマクロファージ活性を示すPET薬剤の集積について基礎的および臨床的に検討を進める。特に臨床ではCTによる血管内の微細な形態情報や、MRIで得られる形態・機能情報も、プラークの病態を示す情報として重要であり、PETの所見との統合的解析が求められる。本研究は基礎的、臨床的検討の双方から、画像診断によるプラークの最適な病態評価法の確立を目指す。

Report

(4 results)
  • 2021 Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (12 results)

All 2021 2020 2019 2018 2017

All Journal Article (7 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 7 results,  Open Access: 3 results) Presentation (5 results) (of which Invited: 1 results)

  • [Journal Article] Elevated serum endothelin-1 is an independent predictor of coronary microvascular dysfunction in non-obstructive territories in patients with coronary artery disease.2021

    • Author(s)
      Naya M, Aikawa T, Manabe O, Obara M, Koyanagawa K, Katoh C, Tamaki N.
    • Journal Title

      Heart Vessels

      Volume: 36(7) Issue: 7 Pages: 917-923

    • DOI

      10.1007/s00380-020-01767-x

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Advances in diagnostic imaging for cardiac sarcoidosis.2021

    • Author(s)
      Manabe O, Oyama-Manabe N, Aikawa T, Tsuneta S, Tamaki N.
    • Journal Title

      J Clin Med.

      Volume: 10(24) Issue: 24 Pages: 5808-5808

    • DOI

      10.3390/jcm10245808

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Uptake of nitotinic acetylcholine receptor imaging agent is reduced in the pro-inflammatory macrophage.2021

    • Author(s)
      Suzuki M, Katayama T, Suzuki C, NakajimaK, Magata Y, Ogawa M.
    • Journal Title

      Nucl Med in Biology

      Volume: 102-103 Pages: 45-55

    • DOI

      10.1016/j.nucmedbio.2021.09.003

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Positron emission tomography/MRI for cardiac diseases assessment2020

    • Author(s)
      Manabe Osamu、Oyama-Manabe Noriko、Tamaki Nagara
    • Journal Title

      The British Journal of Radiology

      Volume: - Issue: 1113 Pages: 20190836-20190836

    • DOI

      10.1259/bjr.20190836

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Is the cessation of blood flow faster than the polymerization of an n-butyl cyanoacrylate-lipiodol mixture? An In vitro phantom study.2020

    • Author(s)
      Hayashi N, Takeuchi Y, Miura H, Arima Y, Toda M, Okamoto T, Asai S, Sakai K, Hirota T, Yamada K
    • Journal Title

      Cardiovasc Intervent Radiol.

      Volume: 43(4) Issue: 9 Pages: 630-635

    • DOI

      10.1007/s00270-020-02599-y

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Assessment of Coronary Flow Velocity Reserve in the Left Main Trunk Using Phase-contrast MR Imaging at 3T: Comparison with <sup>15</sup>O-labeled Water Positron Emission Tomography2019

    • Author(s)
      Kikuchi Yasuka、Naya Masanao、Oyama-Manabe Noriko、Manabe Osamu、Sugimori Hiroyuki、Kudo Kohsuke、Kato Fumi、Aikawa Tadao、Tsutsui Hiroyuki、Tamaki Nagara、Shirato Hiroki
    • Journal Title

      Magnetic Resonance in Medical Sciences

      Volume: 18 Issue: 2 Pages: 134-141

    • DOI

      10.2463/mrms.mp.2018-0003

    • NAID

      130007630070

    • ISSN
      1347-3182, 1880-2206
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Volume-based glucose metabolic analysis of FDG PET/CT: The optimum threshold and conditions to suppress physiological myocardial uptake2017

    • Author(s)
      Manabe Osamu、Kroenke Markus、Aikawa Tadao、Murayama Atsuto、Naya Masanao、Masuda Atsuro、Oyama-Manabe Noriko、Hirata Kenji、Watanabe Shiro、Shiga Tohru、Katoh Chietsugu、Tamaki Nagara
    • Journal Title

      Journal of Nuclear Cardiology

      Volume: 印刷中 Issue: 3 Pages: 909-918

    • DOI

      10.1007/s12350-017-1122-6

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Roles of SPECT and PET for ischemic heart disease.2021

    • Author(s)
      Tamaki N
    • Organizer
      IAEA Workshop in Japanese Society of Nuclear Medicine
    • Related Report
      2020 Annual Research Report
  • [Presentation] Perspectives of nuclear cardiology in the era of multimodality imaging2020

    • Author(s)
      Tamaki N
    • Organizer
      Annual Conference of Association of Nuclear Medicine Physicians of India.
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] The case for nuclear study (in the Era of Multimodality Imaging) in Topics: Coronary 4 Optimal Diagnostic Flow for Patients with Suspected Chronic CAD.2020

    • Author(s)
      玉木長良
    • Organizer
      第84回日本循環器学会学術集会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 病態に即した個別化医療 -PET検査の意義2019

    • Author(s)
      玉木長良
    • Organizer
      第51回日本医学教育学会大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] WHHLMIウサギを用いた動脈硬化不安定プラークイメージング剤の比較検討2018

    • Author(s)
      小川美香子、他
    • Organizer
      第5回日本ウサギバイオサイエンス研究会学術集会
    • Related Report
      2018 Annual Research Report

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Published: 2018-04-23   Modified: 2023-01-30  

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