Hemodynamic effects of the orientation of a bi-leaflet mechanical heart valve implanted in an anatomic aorta

I. Borazjani, T. Le, F. Sotiropoulos

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We perform high-resolution fluid/structure interaction simulations of a bi-leaflet mechanical heart valve implanted in an anatomic aorta with different orientations. The anatomic aorta geometry is obtained from MRI of an actual patient and is discretized with a body-fitted curvilinear mesh. The valve's leaflets and housing are placed as immersed boundaries in the aorta grid. A physiologic plug inflow wave-form with peak Reynolds number of 6000, based on inlet diameter and peak bulk flow velocity, is prescribed at the inlet. The orientation of valve implanted in the anatomic aorta can affect the hemodynamics. We will compare the hemodynamics of each orientation in terms of valve leaflet kinematics, flow patterns, and shear stress distributions.

Original languageEnglish (US)
Title of host publicationWorld Congress on Medical Physics and Biomedical Engineering
Subtitle of host publicationImage Processing, Biosignal Processing, Modelling and Simulation, Biomechanics
Pages1230-1233
Number of pages4
Edition4
DOIs
StatePublished - Dec 1 2009
EventWorld Congress on Medical Physics and Biomedical Engineering: Image Processing, Biosignal Processing, Modelling and Simulation, Biomechanics - Munich, Germany
Duration: Sep 7 2009Sep 12 2009

Publication series

NameIFMBE Proceedings
Number4
Volume25
ISSN (Print)1680-0737

Other

OtherWorld Congress on Medical Physics and Biomedical Engineering: Image Processing, Biosignal Processing, Modelling and Simulation, Biomechanics
CountryGermany
CityMunich
Period9/7/099/12/09

Keywords

  • Aorta
  • Fluid-structure interaction
  • Hemodynamic
  • Mechanical heart valve
  • Orienttion
  • Simulation

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  • Cite this

    Borazjani, I., Le, T., & Sotiropoulos, F. (2009). Hemodynamic effects of the orientation of a bi-leaflet mechanical heart valve implanted in an anatomic aorta. In World Congress on Medical Physics and Biomedical Engineering: Image Processing, Biosignal Processing, Modelling and Simulation, Biomechanics (4 ed., pp. 1230-1233). (IFMBE Proceedings; Vol. 25, No. 4). https://doi.org/10.1007/978-3-642-03882-2-326