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

被引：195

作者：

Bazilevs, Y. ^{[1
]}

Hsu, M. -C. ^{[1
]}

Zhang, Y. ^{[2
]}

Wang, W. ^{[2
]}

Kvamsdal, T. ^{[3
]}

Hentschel, S. ^{[4
]}

Isaksen, J. G. ^{[5
,6
,7
]}

机构：

[1] Univ Calif San Diego, Dept Struct Engn, La Jolla, CA 92093 USA

[2] Carnegie Mellon Univ, Dept Mech Engn, Pittsburgh, PA 15213 USA

[3] SINTEF Informat & Commun Technol, Dept Appl Math, N-7465 Trondheim, Norway

[4] Simula, Dept Comp Sci, N-1364 Fornebu, Norway

[5] Univ Hosp N Norway, Dept Neurosurg, N-9038 Tromso, Norway

[6] Univ Hosp N Norway, Dept Neurol, N-9038 Tromso, Norway

[7] Univ Tromso, Inst Clin Med, N-9037 Tromso, Norway

来源：

BIOMECHANICS AND MODELING IN MECHANOBIOLOGY | 2010年 / 9卷 / 04期

关键词：

Cerebral aneurysms; Fluid-structure interaction; Arterial wall tissue modeling; Incompressible Navier-Stokes equations; Boundary layer meshing; Wall shear stress; Wall tension; Tissue prestress; FINITE-ELEMENTS; BLOOD-FLOW; BOUNDARY-CONDITIONS; WALL; HEMODYNAMICS; DYNAMICS;

D O I：

10.1007/s10237-010-0189-7

中图分类号：

Q6 [生物物理学];

学科分类号：

071011 ;

摘要：

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.

引用

页码：481 / 498

页数：18

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