Hemodynamic uncertainties of wall shear stress in major arteries

Guillaume Tran-Son-Tay, Marc Garbey, Mark G. Davies

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

Abstract

Numerous publications connect wall shear stress quantities to endovascular diseases such as stenosis, aneurism, atherosclerosis plaque formation. The goal of this paper is to discuss the accuracy of the computation of wall shear stress in particular and hemo-dynamic flow in general. We present two benchmark problems: steady flow in carotid bifurcation reconstructed from magnetic resonance imaging, and pulsatile flow in femoral artery reconstructed from ultrasound imaging. In the first benchmark we focus our study on the uncertainties due to the Navier Stokes numerical solver, while in the second we look at the influence of fluid structure interaction with artery wall motion. We will show that even in very simple situations one may expect inaccuracy of the order of 10 to 20 percent on the wall shear stress.

Original languageEnglish (US)
Title of host publication3rd International Conference on Bioinformatics and Computational Biology 2011, BICoB 2011
Pages140-145
Number of pages6
StatePublished - Dec 1 2011
Externally publishedYes
Event3rd International Conference on Bioinformatics and Computational Biology 2011, BICoB 2011 - New Orleans, LA, United States
Duration: Mar 23 2011Mar 25 2011

Publication series

Name3rd International Conference on Bioinformatics and Computational Biology 2011, BICoB 2011

Conference

Conference3rd International Conference on Bioinformatics and Computational Biology 2011, BICoB 2011
CountryUnited States
CityNew Orleans, LA
Period3/23/113/25/11

ASJC Scopus subject areas

  • Biomedical Engineering
  • Health Information Management

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