Biomechanics and Modeling in Mechanobiology

, Volume 9, Issue 4, pp 481–498

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

  • Y. Bazilevs
  • M.-C. Hsu
  • Y. Zhang
  • W. Wang
  • T. Kvamsdal
  • S. Hentschel
  • J. G. Isaksen
Open AccessOriginal Paper

DOI: 10.1007/s10237-010-0189-7

Cite this article as:
Bazilevs, Y., Hsu, M., Zhang, Y. et al. Biomech Model Mechanobiol (2010) 9: 481. doi:10.1007/s10237-010-0189-7

Abstract

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.

Keywords

Cerebral aneurysmsFluid–structure interactionArterial wall tissue modelingIncompressible Navier–Stokes equationsBoundary layer meshingWall shear stressWall tensionTissue prestress
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Copyright information

© The Author(s) 2010

Authors and Affiliations

  • Y. Bazilevs
    • 1
  • M.-C. Hsu
    • 1
  • Y. Zhang
    • 2
  • W. Wang
    • 2
  • T. Kvamsdal
    • 3
  • S. Hentschel
    • 4
  • J. G. Isaksen
    • 5
    • 6
  1. 1.Department of Structural EngineeringUniversity of California, San DiegoLa JollaUSA
  2. 2.Department of Mechanical EngineeringCarnegie Mellon UniversityPittsburghUSA
  3. 3.Department of Applied MathematicsSINTEF Information and Communication TechnologyTrondheimNorway
  4. 4.Department of Scientific ComputingSimulaFornebuNorway
  5. 5.Departments of Neurosurgery and NeurologyUniversity Hospital of North NorwayTromsøNorway
  6. 6.Institute of Clinical MedicineUniversity of TromsøTromsøNorway