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    Fluid-structure interaction analysis of the left coronary artery with variable branch angulation

    Access Status
    Fulltext not available
    Authors
    Dong, J.
    Sun, Zhonghua
    Inthavong, K.
    Tu, J.
    Date
    2014
    Type
    Journal Article
    
    Metadata
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    Citation
    Dong, J. and Sun, Z. and Inthavong, K. and Tu, J. 2014. Fluid-structure interaction analysis of the left coronary artery with variable branch angulation. Computer Methods in Biomechanics and Biomedical Engineering. 18 (14): pp. 1500-1508.
    Source Title
    Computer Methods in Biomechanics and Biomedical Engineering
    DOI
    10.1080/10255842.2014.921682
    ISSN
    1025-5842
    School
    Department of Imaging and Applied Physics
    URI
    http://hdl.handle.net/20.500.11937/46408
    Collection
    • Curtin Research Publications
    Abstract

    The aim of this study is to elucidate the correlation between coronary artery branch angulation, local mechanical and haemodynamic forces at the vicinity of bifurcation. Using a coupled fluid–structure interaction (FSI) modelling approach, five idealized left coronary artery models with various angles ranging from 708 to 1108 were developed to investigate the influence of branch angulations. In addition, one CT image-based model was reconstructed to further demonstrate the medical application potential of the proposed FSI coupling method. The results show that the angulation strongly alters its mechanical stress distribution, and the instantaneous wall shear stress distributions are substantially moderated by the arterial wall compliance. As high tensile stress is hypothesized to cause stenosis, the left circumflex side bifurcation shoulder is indicated to induce atherosclerotic changes with a high tendency for wide-angled models.

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