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Effect of a lipid pool on stress/strain distributions in stenotic arteries: 3-D fluid-structure interactions (FSI) models.

Authors :
Tang D
Yang C
Kobayashi S
Ku DN
Source :
Journal of biomechanical engineering [J Biomech Eng] 2004 Jun; Vol. 126 (3), pp. 363-70.
Publication Year :
2004

Abstract

Nonlinear 3-D models with fluid-structure interactions (FSI) based on in vitro experiments are introduced and solved by ADINA to perform flow and stress/strain analysis for stenotic arteries with lipid cores. Navier-Stokes equations are used as the governing equations for the fluid. Hyperelastic Mooney-Rivlin models are used for both the arteries and lipid cores. Our results indicate that critical plaque stress/strain conditions are affected considerably by stenosis severity, eccentricity, lipid pool size, shape and position, plaque cap thickness, axial stretch, pressure, and fluid-structure interactions, and may be used for possible plaque rupture predictions.

Details

Language :
English
ISSN :
0148-0731
Volume :
126
Issue :
3
Database :
MEDLINE
Journal :
Journal of biomechanical engineering
Publication Type :
Academic Journal
Accession number :
15341174
Full Text :
https://doi.org/10.1115/1.1762898