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Development of advanced MRI for brain tumor assessment visualizing cell morphology

Research Project

Project/Area Number 21K07569
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 InstitutionKagoshima University

Principal Investigator

Yoshiura Takashi  鹿児島大学, 医歯学域医学系, 教授 (40322747)

Co-Investigator(Kenkyū-buntansha) 上村 清央  鹿児島大学, 医歯学域医学系, 准教授 (30593652)
中條 正典  鹿児島大学, 医歯学域医学系, 客員研究員 (60727171)
熊澤 誠志  北海道科学大学, 保健医療学部, 教授 (50363354)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2022: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2021: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
KeywordsMRI / 脳腫瘍 / 拡散強調画像 / 細胞形態 / 拡散異方性
Outline of Research at the Start

腫瘍細胞の形態は、腫瘍の病理組織画像上の基本的な特徴であり、腫瘍の振る舞いや遺伝子変異とも関連する重要な情報であるが、従来の放射線画像診断法では、腫瘍細胞の形態を捉えることはできなかった。本研究ではまず、先進的なMRIであるdouble diffusion encoding(DDE)法を用いて、腫瘍細胞形態の評価が可能であることを、シミュレーションや病理画像との比較により明らかにする。その上で、DDE法の画像データから推定された腫瘍細胞形態の、脳腫瘍の鑑別診断や予後の推定、遺伝子変異の推定におけるバイオマーカとしての有用性を明らかにする。

Outline of Final Research Achievements

This study aimed to establish a non-invasive method for evaluating the cell morphology in brain tumors. We introduced and optimized double diffusion encoding (DDE) MRI to a clinical MRI scanner, and developed computer applications for calculating maps of microscopic FA (microFA), which is a quantitative metric for diffusion anisotropy within a microscopic domain. microFA was significantly higher in meningioma, which consists of cells with elongated shape than glioblastoma, which has round or irregular-shaped cells, suggesting that microFA derived from DDE MRI can reflect the morphology of tumor cells. microFA was shown useful for differentiating brain metastasis from glioblastoma, but appeared to be less useful for differentiating malignant lymphoma from glioblastoma. This study suggested that DDE MRI may provide valuable information regarding tumor cell morphology, but warranted further technical improvements.

Academic Significance and Societal Importance of the Research Achievements

本研究は、腫瘍細胞の形態という、これまで注目されなかった腫瘍の特徴に着目し、先進的な拡散強調MRIの技術を用いて非侵襲的に評価することで、新たなバイオマーカ―として利用できる可能性を示した、非常に新規性の高い研究である。脳腫瘍は、依然として難治な疾患であり、診断・治療技術の進歩が望まれている。本研究では、脳腫瘍の鑑別診断における有用性を示したが、今後さらに研究を進め、治療効果や予後予測などへの応用が確立できれば、さらに大きな社会的な意義を持つ。

Report

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

    (16 results)

All 2024 2023 2022 2021

All Journal Article (3 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 3 results,  Open Access: 2 results) Presentation (13 results) (of which Int'l Joint Research: 2 results,  Invited: 4 results)

  • [Journal Article] Differentiating brain metastasis from glioblastoma by time-dependent diffusion MRI.2023

    • Author(s)
      Kamimura K, Kamimura Y, Nakano T, Hasegawa T, Nakajo M, Yamada C, Akune K,Ejima F, Ayukawa T, Ito S, Nagano H, Takumi K, Nakajo M, Uchida H, Tabata K, Iwanaga T, Imai H, Feiweier T, Yoshiura T
    • Journal Title

      Cancer Imaging

      Volume: 23 Issue: 1 Pages: 75-75

    • DOI

      10.1186/s40644-023-00595-2

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Differentiating primary central nervous system lymphoma from glioblastoma by time-dependent diffusion using oscillating gradient.2023

    • Author(s)
      Kamimura K, Nakano T, Hasegawa T, Nakajo M, Yamada C, Kamimura Y, Akune K, Ejima F, Ayukawa T, Nagano H, Takumi K, Nakajo M, Higa N, Yonezawa H, Hanaya R, Kirishima M, Tanimoto A, Iwanaga T, Imai H, Feiweier T, Yoshiura T
    • Journal Title

      Cancer Imaging

      Volume: 23 Issue: 1 Pages: 114-114

    • DOI

      10.1186/s40644-023-00639-7

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Differentiation of hemangioblastoma from brain metastasis using MR amide proton transfer imaging.2022

    • Author(s)
      Kamimura K, Nakajo M, Gohara M, Kawaji K, Bohara M, Fukukura Y, Uchida H, Tabata K, Iwanaga T, Akamine Y, Keupp J, Fukami T, Yoshiura T
    • Journal Title

      J Neuroimaging

      Volume: 32(5) Issue: 5 Pages: 920-929

    • DOI

      10.1111/jon.13019

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 時間依存性拡散強調MRIのIMPULSEDモデル解析による脳腫瘍微小構造評価の初期経験2024

    • Author(s)
      上村 清央、中野 翼、長谷川 知仁、米澤 大、岩永 崇、今井 広、吉浦 敬
    • Organizer
      第53回日本神経放射線学会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 脳神経画像の最先端 拡散強調MRIを中心に2024

    • Author(s)
      吉浦 敬
    • Organizer
      第3回富山脳神経画像研究会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 脳拡散MRI-最近の進歩-2024

    • Author(s)
      吉浦 敬
    • Organizer
      第7回香川MRI研究会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 脳腫瘍の拡散強調画像 新しい試み2024

    • Author(s)
      上村 清央
    • Organizer
      第53回日本神経放射線学会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Differentiation of brain metastasis and glioblastoma by time-dependent DWI: diagnostic performance and comparison of extravascular extracellular space.2023

    • Author(s)
      Kamimura K, Nakano T, Hasegawa T, Nakajo M, Uchida H, Iwanaga T, Imai H, Yoshiura T
    • Organizer
      The 82nd Annual Meeting of Japan Radiological Society
    • Related Report
      2023 Annual Research Report
  • [Presentation] Differentiation of glioblastoma and brain metastasis by advanced diffusion MRI parameters.2023

    • Author(s)
      Kamimura K, Nakano T, Hasegawa T, Nakajo M, Uchida H, Iwanaga T, Imai H, Yoshiura T
    • Organizer
      The 51st annual meeting of the Japanese Society for Magnetic Resonance in Medicine
    • Related Report
      2023 Annual Research Report
  • [Presentation] Not ADC but advanced diffusion MRI parameters can differentiate brain metastases from glioblastomas.2023

    • Author(s)
      Kamimura K, Nakano T, Hasegawa T, Nakajo M, Takumi K, Iwanaga T, Feiweier T, Imai H, Yoshiura T
    • Organizer
      Radiological Society of North America's 109th Scientific Assembly and Annual Meeting
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 脳MRI最近の進歩:拡散強調画像を中心に2023

    • Author(s)
      吉浦 敬
    • Organizer
      第116回MR研究会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] The clinical application of time-dependent diffusion MRI: differentiation of brain tumors.2023

    • Author(s)
      Kamimura K
    • Organizer
      The 51st annual meeting of the Japanese Society for Magnetic Resonance in Medicine
    • Related Report
      2023 Annual Research Report
  • [Presentation] Comparison of primary central nervous system lymphoma and glioblastoma: Quantitative analysis using double-diffusion-encoding MRI2022

    • Author(s)
      Kamimura K, Nakajo M, Bohara M, Uchida H, Iwanaga T, Imai H, Yoshiura T
    • Organizer
      第81回日本医学放射線学会総会
    • Related Report
      2022 Research-status Report
  • [Presentation] Advanced diffusion-weighted imaging for differentiating between glioblastoma and primary central nervous system lymphoma2022

    • Author(s)
      Kamimura K, Nakajo M, Bohara M, Fukukura Y, Uchida H, Iwanaga T, Feiweier T, Imai H, Yoshiura T
    • Organizer
      ISMRM-ESMRMB & ISMRT 31st Annual Meeting
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 神経領域の拡散強調像~最近の進歩~2022

    • Author(s)
      上村 清央
    • Organizer
      第70回九州MRI研究会
    • Related Report
      2021 Research-status Report
  • [Presentation] これからの脳腫瘍MRI2021

    • Author(s)
      吉浦 敬
    • Organizer
      第49回日本磁気共鳴医学会大会
    • Related Report
      2021 Research-status Report
    • Invited

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

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