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    Coronary arterial dynamics computation with medical-image-based time-dependent anatomical models and element-based zero-stress state estimates

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    Author
    Takizawa, Kenji; Torii, Ryo; Takagi, Hirokazu; Tezduyar, Tayfun E.; Xu, Xiao Y.
    Date
    2014
    Abstract
    We propose a method for coronary arterial dynamics computation with medical-image-based time-dependent anatomical models. The objective is to improve the computational analysis of coronary arteries for better understanding of the links between the atherosclerosis development and mechanical stimuli such as endothelial wall shear stress and structural stress in the arterial wall. The method has two components. The first one is element-based zero-stress (ZS) state estimation, which is an alternative to prestress calculation. The second one is a “mixed ZS state” approach, where the ZS states for different elements in the structural mechanics mesh are estimated with reference configurations based on medical images coming from different instants within the cardiac cycle. We demonstrate the robustness of the method in a patient-specific coronary arterial dynamics computation where the motion of a thin strip along the arterial surface and two cut surfaces at the arterial ends is specified to match the motion extracted from the medical images.
    Citation
    Takizawa, Kenji, Torii, Ryo, Takagi, Hirokazu, et al.. "Coronary arterial dynamics computation with medical-image-based time-dependent anatomical models and element-based zero-stress state estimates." Computational Mechanics, (2014) Springer: http://dx.doi.org/10.1007/s00466-014-1049-6.
    Published Version
    http://dx.doi.org/10.1007/s00466-014-1049-6
    Keyword
    coronary arterial dynamics; time-dependent anatomical model; medical-image-based data; coronary atherosclerosis; element-based zero-stress state estimate; More... mixed zero-stress state Less...
    Type
    Journal article
    Publisher
    Springer
    Citable link to this page
    https://hdl.handle.net/1911/76322
    Rights
    Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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    • Faculty Publications [5245]
    • Mechanical Engineering Publications [162]

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    Home | FAQ | Contact Us | Privacy Notice | Accessibility Statement
    Managed by the Digital Scholarship Services at Fondren Library, Rice University
    Physical Address: 6100 Main Street, Houston, Texas 77005
    Mailing Address: MS-44, P.O.BOX 1892, Houston, Texas 77251-1892
    Site Map