3D Modeling of Stenotic Internal Carotid Artery Treated with Stent: A CFD Analysis of Blood

DOI

10.2991/iccnce.2013.36How to use a DOI?

Keywords

Stenosis, Palmaz–Schatz stent, 3D model of carotid artery, Hemodynamic properties of blood, CFD analysis,

Abstract

There is enormous evidence that the initiation and growth of atherosclerosis is highly influenced by hemodynamic factors. In this study, hemodynamic factors in the following patient specific 3D carotid artery models were studied: i) normal, ii) stenosis (with plaque near to bifurcation of internal carotid artery (ICA)), and iii) surgical model (plaque with surgically fitted Palmaz–Schatz stent). The 3D model of the carotid artery was formed from CT image of a patient through a commercial software MIMICS. The geometrical measurement taken from the 3D model was used to form its CAD model using CATIA software. The CAD model was meshed in ANSYS ICEM CFD module. The inlet- and outlet- boundary conditions were defined and material properties were given in CFX-Pre module of ANSYS. Then the solver input file was given to CFX solver manager for performing computational fluid dynamics (CFD) on the model. The outputs of the CFD analysis were observed in CFD-Post. The wall shear stress and blood velocity were greater both at near the bifurcation and at bend of the carotid artery model. The abnormal model is characterized by high wall shear stress in the stenosed portion which indicates greater probability of growth of plaque. Disturbed flow patterns and oscillating velocity indicate that the vulnerability of plaque formation is high in such places. The hemodynamic values have come back near to normal values in the carotid model fitted with stent. The observed variations in hemodynamic factors in the carotid artery with plaque surgically fitted with stent were compared to its normal model. This information can be used to predict restenosis in future.

Copyright

© 2013, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - M. Elshin Joel
AU  - M. Anburajan
PY  - 2013/07
DA  - 2013/07
TI  - 3D Modeling of Stenotic Internal Carotid Artery Treated with Stent: A CFD Analysis of Blood
BT  - Proceedings of the International Conference on Computer, Networks and Communication Engineering (ICCNCE 2013)
PB  - Atlantis Press
SP  - 148
EP  - 151
SN  - 1951-6851
UR  - https://doi.org/10.2991/iccnce.2013.36
DO  - 10.2991/iccnce.2013.36
ID  - ElshinJoel2013/07
ER  -