Computer modeling of cardiovascular fluid–structure interactions with the deforming-spatial-domain/stabilized space–time formulation

Torii, Ryo; Oshima, Masaharu; Kobayashi, Toshio; Takagi, Kiyoshi; Tezduyar, Tayfun E.

doi:10.1016/j.cma.2005.05.050

Cited by 159 publications

(114 citation statements)

References 18 publications

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“…Despite its modeling shortcomings, pure CFD remains the predominant modeling approach for vascular blood flow, and, in particular, for computation of aneurysm flows. Notable exceptions include the work of (Takizawa et al 2010a,b;Torii et al 2006aTorii et al ,b, 2007Torii et al , 2008Torii et al , 2009) on cerebral aneurysms and the work of (Wolters et al 2005;Scotti and Finol 2007;Rissland et al 2009) on aortic abdominal aneurysms. This paper likewise focuses on developing and using advanced FSI computational techniques to assess the risk of rupture for cerebral aneurysms in individual patients.…”

Section: Introductionmentioning

confidence: 99%

Computational vascular fluid–structure interaction: methodology and application to cerebral aneurysms

Bazilevs

Hsu

Zhang

et al. 2010

Biomech Model Mechanobiol

227

131

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A computational vascular fluid-structure interaction framework for the simulation of patient-specific cerebral aneurysm configurations is presented. A new approach for the computation of the blood vessel tissue prestress is also described. Simulations of four patient-specific models are carried out, and quantities of hemodynamic interest such as wall shear stress and wall tension are studied to examine the relevance of fluid-structure interaction modeling when compared to the rigid arterial wall assumption. We demonstrate that flexible wall modeling plays an important role in accurate prediction of patient-specific hemodynamics. Discussion of the clinical relevance of our methods and results is provided.

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Section: Introductionmentioning

confidence: 99%

Computational vascular fluid–structure interaction: methodology and application to cerebral aneurysms

Bazilevs

Hsu

Zhang

et al. 2010

Biomech Model Mechanobiol

227

131

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“…This article addresses one of these shortcoming by introducing flexible wall modeling in Fontan surgery simulations. Including arterial fluid-structure interaction (FSI) has been found to be important for modeling other parts of the cardiovascular system (see, e.g., [5,46,47,51]), and the Fontan surgery, as will be shown in this article, presents no exception. It should be noted that an idealized Fontan configuration without pulmonary branching was studied using flow-structure interaction in [27].…”

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confidence: 99%

Computational fluid–structure interaction: methods and application to a total cavopulmonary connection

et al. 2009

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The Fontan procedure is a surgery that is performed on single-ventricle heart patients, and, due to the wide range of anatomies and variations among patients, lends itself nicely to study by advanced numerical methods. We focus on a patient-specific Fontan configuration, and perform a fully coupled fluid-structure interaction (FSI) analysis of hemodynamics and vessel wall motion. To enable physiologically realistic simulations, a simple approach to constructing a variable-thickness blood vessel wall description is proposed. Rest and exercise conditions are simulated and rigid versus flexible vessel wall simulation results are compared. We conclude that flexible wall modeling plays an important role in predicting quantities of hemodynamic interest in the Fontan connection. To the best of our knowledge, this paper presents the first three-dimensional patientspecific fully coupled FSI analysis of a total cavopulmonary connection that also includes large portions of the pulmonary circulation.

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“…In this article, we assume any study that employs one or more patient-specific data to be a patient-specific study. The majority of such studies on physiological flows have been focused on the understanding of blood flow and related problems [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. This is mainly due to the fact that cardiovascular problems account for the majority of disease-related deaths in 632 P. NITHIARASU ET AL.…”

Section: Introductionmentioning

confidence: 99%

Steady flow through a realistic human upper airway geometry

Nithiarasu

Hassan

Morgan

et al. 2008

Numerical Methods in Fluids

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SUMMARYAir flow through a human upper airway (central part) has been carried out using a realistic geometry. In addition to explaining the anatomy, problems and importance of patient-specific study of human upper airways, this article also presents some qualitative and quantitative simulation results. As expected, the shear and pressure forces are large in the oropharynx and laryngopharynx, where the flow passage is narrow. This clearly indicates that these locations should be the focus of any study aimed at understanding the human upper airway collapse in a patient-specific manner.

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Computer modeling of cardiovascular fluid–structure interactions with the deforming-spatial-domain/stabilized space–time formulation

Cited by 159 publications

References 18 publications

Computational vascular fluid–structure interaction: methodology and application to cerebral aneurysms

Computational vascular fluid–structure interaction: methodology and application to cerebral aneurysms

Computational fluid–structure interaction: methods and application to a total cavopulmonary connection

Steady flow through a realistic human upper airway geometry

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