Computational Mechanics

, Volume 45, Issue 1, pp 77–89

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

Authors

    • Department of Structural EngineeringUniversity of California, San Diego
  • M.-C. Hsu
    • Department of Structural EngineeringUniversity of California, San Diego
  • D. J. Benson
    • Department of Structural EngineeringUniversity of California, San Diego
  • S. Sankaran
    • Department of Mechanical and Aerospace EngineeringUniversity of California, San Diego
  • A. L. Marsden
    • Department of Mechanical and Aerospace EngineeringUniversity of California, San Diego
Open AccessOriginal Paper

DOI: 10.1007/s00466-009-0419-y

Cite this article as:
Bazilevs, Y., Hsu, M., Benson, D.J. et al. Comput Mech (2009) 45: 77. doi:10.1007/s00466-009-0419-y

Abstract

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 patient-specific fully coupled FSI analysis of a total cavopulmonary connection that also includes large portions of the pulmonary circulation.

Keywords

Blood flowFontan surgeryFluid–structure interactionVariable wall thicknessHyperelasticityWall shear stress
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Copyright information

© The Author(s) 2009