• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Elucidation of the mechanism of change in cardiac fiber orientation under heart failure

Research Project

Project/Area Number 16H05427
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Cardiovascular surgery
Research InstitutionNagoya University

Principal Investigator

AKITA TOSHIAKI  名古屋大学, 医学部附属病院, 特任教授 (30167837)

Co-Investigator(Kenkyū-buntansha) 森 健策  名古屋大学, 情報学研究科, 教授 (10293664)
久田 俊明  東京大学, 大学院新領域創成科学研究科, 名誉教授 (40126149)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥15,080,000 (Direct Cost: ¥11,600,000、Indirect Cost: ¥3,480,000)
Fiscal Year 2018: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2017: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2016: ¥8,580,000 (Direct Cost: ¥6,600,000、Indirect Cost: ¥1,980,000)
Keywords心不全 / 心臓リモデリング / 心筋配向 / 心筋シート角度 / 心臓サポートネット治療 / マイクロCT / 心臓シミュレーション / 心臓サポートネット / MicroCT / シミュレーション / 循環器 / シミュレーション工学 / 数理工学 / 心機能 / 心筋症 / マイクロCT
Outline of Final Research Achievements

Cardiac fiber orientation and cardiac sheet angle were evaluated using structure tensor analysis from micro CT images of canine normal and heart failure hearts. The hearts were explanted, fixed with formaldehyde and embedded in paraffin for micro CT image
Cardiac fiber angle were gradually changed from -60°(outer layer side) to +60°( inner layer side) without definitive 3 layer compositions, which were different from previous reports. In heart failure hearts, cardiac fiber angles of outer and inner layers did not change, but portion of horizontal cardiac fiber angle increased.

Academic Significance and Societal Importance of the Research Achievements

従来は心臓全体の心筋配向評価には高磁場のMR装置を用いた長時間のdiffusion tensor法(DT-MRI)による撮像が必要だった。MicroCTはMRIに比べると装置は小さく解像度も高いが、DT-MRI法のように画像自体に心筋繊維方向の情報を持たないため、別途解析手法が必要だった。研究分担者とともにMicro CT画像に構造テンソ解析を応用し、心筋配向と心筋シートの解析手法を確立した。この手法により、より簡便に心筋配向の解析が可能となり、心臓リモデリングにおける心不全進行と心筋配向角度変化の関係が明らかになり、心不全悪化機序の解明や新しい心不全治療法の開発に繋がることが期待される。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • Research Products

    (10 results)

All 2019 2018 2017 2016

All Journal Article (1 results) Presentation (8 results) (of which Int'l Joint Research: 6 results) Book (1 results)

  • [Journal Article] 重症心不全患者に対するテイラーメイド方式心臓サポートネット開発2019

    • Author(s)
      秋田利明、佐々木敏哉、佐々木哲也
    • Journal Title

      バイオマテリアル

      Volume: 37 Pages: 96-101

    • Related Report
      2018 Annual Research Report
  • [Presentation] Scanning, registration, and fiber estimation of rabbit hearts using micro-focus and refraction-contrast X-ray CT,2019

    • Author(s)
      Hirohisa Oda, Holger R. Roth, Takaaki Sugino, Naoki Sunaguchi, Noriko Usami, Toshiaki Akita, Kensaku Mori,
    • Organizer
      SPIE
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Multidisciplinary Computational Anatomical Analysis for the Change in the Cardiac Fiber Orientation at Congestive Heart Failure2018

    • Author(s)
      Toshiaki Akita, Hirohisa Oda, Noriko Usami, Kensaku Mori
    • Organizer
      The 5th International Symposium on Multidisciplinary Computational Anatomy
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] マイクロCT、屈折CTを用いた心筋配向解析ーMR 拡散テンソル法との比較検討2018

    • Author(s)
      秋田利明、碓氷章彦、小田紘久、森健策
    • Organizer
      日本胸部外科学会総会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Multidisciplinary Computational Anatomical Analysis for the Change in the Cardiac Fiber Orientation at Congestive Heart Failure2018

    • Author(s)
      Toshiaki Akita, Hirohisa Oda, Noriko Usami, Naoki Sunaguchi, Daisuke Shimao, Shu Ichihara, Tetsuya Yuasa, Masami Ando, Kensaku Mori
    • Organizer
      第4回多元計算解剖学国際シンポジウム
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] MicroCTを用いた心筋配向解析手法の取り組み ~ MRI diffusion tensor法との比較2017

    • Author(s)
      秋田利明、小田紘久、森健策
    • Organizer
      コンピュータ外科学会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Extracellular matrix directions estimation of the heart on micro-focus x-ray CT volumes2017

    • Author(s)
      Hirihisa Oda, Masahiro Oda, Toshiaki Akita, Kensaku Mori
    • Organizer
      SPIE
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Tensor-Based Supervoxels for unfolding the heart2017

    • Author(s)
      Oda, H., Mori K. Roth,H., Akita T.
    • Organizer
      MICCAI 2017
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Visualization Method of Myofiber Structure of Apex of Left Ventricle from a Micro CT Volume2016

    • Author(s)
      Oda H., Mori K. Akita T.
    • Organizer
      Radiology Society of North America 2016
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Book] Medical Image Computing and Computer Assisted Intervention - MICCAI 20172017

    • Author(s)
      Hirohisa Oda, Holger R. Roth, Kanwal K. Bhatia, Masahiro Oda, Takayuki Kitasaka, Toshiaki Akita, Julia A. Schnabel, Kensaku Mori
    • Total Pages
      811
    • Publisher
      Springer
    • Related Report
      2017 Annual Research Report

URL: 

Published: 2016-04-21   Modified: 2020-03-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi