Using Computational Fluid Dynamics Model to Predict Changes in Velocity properties in Stented Carotid Artery

S. Vaidehi, and A. Ritter
Stevens Institute of Technolgy, Hoboken, NJ, USA

Atherosclerosis is a disease that narrows, thickens, hardens and restructures a blood vessel due to substantial plaque deposit. In the Carotid Artery, the decision to treat using endarterectomy and stenting is determined by the velocity as measured by Doppler flow in the common Carotid Artery. The measured Doppler velocity as compared with the contra-lateral side has been correlated with the degree of stenosis. The hypothesis we are testing is that higher velocity measured after stenting may be due to decreased compliance of the artery wall at the stent region. The overall objective of this paper is to create a computational model with pulsatile flow and walls with physiological compliance. These pressure variations pulsatile waveform. The computational simulations were performed in which the physiological flow through compliant axisymmetric stenotic blood vessel (carotid artery) was solved using commercial software COMSOL. COMSOL Multiphysics is used to solve this challenging problem involving fluid-structure interaction.

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