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    Modeling Pulse Wave Propagation Through a Stenotic Artery With Fluid Structure Interaction: A Validation Study Using Ultrasound Pulse Wave Imaging

    Source: Journal of Biomechanical Engineering:;2020:;volume( 143 ):;issue: 003::page 031005-1
    Author:
    Gatti, Vittorio
    ,
    Nauleau, Pierre
    ,
    Karageorgos, Grigorios M.
    ,
    Shim, Jay J.
    ,
    Ateshian, Gerard A.
    ,
    Konofagou, Elisa E.
    DOI: 10.1115/1.4048708
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: Pulse wave imaging (PWI) is an ultrasound-based method that allows spatiotemporal mapping of the arterial pulse wave propagation, from which the local pulse wave velocity (PWV) can be derived. Recent reports indicate that PWI can help the assessment of atherosclerotic plaque composition and mechanical properties. However, the effect of the atherosclerotic plaque's geometry and mechanics on the arterial wall distension and local PWV remains unclear. In this study, we investigated the accuracy of a finite element (FE) fluid–structure interaction (FSI) approach to predict the velocity of a pulse wave propagating through a stenotic artery with an asymmetrical plaque, as quantified with PWI method. Experiments were designed to compare FE-FSI modeling of the pulse wave propagation through a stenotic artery against PWI obtained with manufactured phantom arteries made of polyvinyl alcohol (PVA) material. FSI-generated spatiotemporal maps were used to estimate PWV at the plaque region and compared it to the experimental results. Velocity of the pulse wave propagation and magnitude of the wall distension were correctly predicted with the FE analysis. In addition, findings indicate that a plaque with a high degree of stenosis (>70%) attenuates the propagation of the pulse pressure wave. Results of this study support the validity of the FE-FSI methods to investigate the effect of arterial wall structural and mechanical properties on the pulse wave propagation. This modeling method can help to guide the optimization of PWI to characterize plaque properties and substantiate clinical findings.
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      Modeling Pulse Wave Propagation Through a Stenotic Artery With Fluid Structure Interaction: A Validation Study Using Ultrasound Pulse Wave Imaging

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4277525
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    contributor authorGatti, Vittorio
    contributor authorNauleau, Pierre
    contributor authorKarageorgos, Grigorios M.
    contributor authorShim, Jay J.
    contributor authorAteshian, Gerard A.
    contributor authorKonofagou, Elisa E.
    date accessioned2022-02-05T22:25:57Z
    date available2022-02-05T22:25:57Z
    date copyright12/10/2020 12:00:00 AM
    date issued2020
    identifier issn0148-0731
    identifier otherbio_143_03_031005.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4277525
    description abstractPulse wave imaging (PWI) is an ultrasound-based method that allows spatiotemporal mapping of the arterial pulse wave propagation, from which the local pulse wave velocity (PWV) can be derived. Recent reports indicate that PWI can help the assessment of atherosclerotic plaque composition and mechanical properties. However, the effect of the atherosclerotic plaque's geometry and mechanics on the arterial wall distension and local PWV remains unclear. In this study, we investigated the accuracy of a finite element (FE) fluid–structure interaction (FSI) approach to predict the velocity of a pulse wave propagating through a stenotic artery with an asymmetrical plaque, as quantified with PWI method. Experiments were designed to compare FE-FSI modeling of the pulse wave propagation through a stenotic artery against PWI obtained with manufactured phantom arteries made of polyvinyl alcohol (PVA) material. FSI-generated spatiotemporal maps were used to estimate PWV at the plaque region and compared it to the experimental results. Velocity of the pulse wave propagation and magnitude of the wall distension were correctly predicted with the FE analysis. In addition, findings indicate that a plaque with a high degree of stenosis (>70%) attenuates the propagation of the pulse pressure wave. Results of this study support the validity of the FE-FSI methods to investigate the effect of arterial wall structural and mechanical properties on the pulse wave propagation. This modeling method can help to guide the optimization of PWI to characterize plaque properties and substantiate clinical findings.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleModeling Pulse Wave Propagation Through a Stenotic Artery With Fluid Structure Interaction: A Validation Study Using Ultrasound Pulse Wave Imaging
    typeJournal Paper
    journal volume143
    journal issue3
    journal titleJournal of Biomechanical Engineering
    identifier doi10.1115/1.4048708
    journal fristpage031005-1
    journal lastpage031005-11
    page11
    treeJournal of Biomechanical Engineering:;2020:;volume( 143 ):;issue: 003
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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