Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.14279/4369
Title: Hemodynamic analysis of a compliant femoral artery bifurcation model using a fluid structure interaction framework
Authors: Kim, Young H. 
Kim, Jong E. 
Anayiotos, Andreas 
metadata.dc.contributor.other: Αναγιωτός, Ανδρέας
Major Field of Science: Engineering and Technology
Field Category: Medical Engineering
Keywords: Computational fluid dynamics;Tomography;Electric instrument transformers
Issue Date: 2008
Source: Annals of Biomedical Engineering, 2008, Volume 36, Issue 11, Pages 1753-1763
Journal: Annals of Biomedical Engineering 
Abstract: The influence of wall motion on the hemodynamic characteristics of the human femoral bifurcation and its effects on the development of peripheral artery disease has not been previously investigated. This study aimed in investigating the hemodynamics of a compliant patient-specific femoral artery bifurcation model by a fluid structure interaction (FSI) scheme. The complex physiological geometry of the femoral artery bifurcation was reproduced from sequentially obtained transverse CT scan images. Velocity waveforms derived from phase contrast MR images were extracted and mapped to define boundary conditions. Equations governing blood flow and wall motion were solved using an FSI framework that utilizes commercial codes: FLUENT for computational fluid dynamics and ANSYS for computational structural dynamics. The results showed that wall compliance decreased flow velocities at the relatively high curvature geometries including common and superficial femoral artery (SFA), and it created strong recirculation in the profunda femoris artery close to the bifurcation. In the SFA region near the apex, time averaged wall shear stress (TAWSS) differences up to 25% between compliant and rigid models were observed. The compliant model also exhibited lower TAWSS and oscillatory shear at the superior section of the common femoral artery close to the bifurcation. The presence of wall motion, however, created minor differences in the general flow-field characteristics. We conclude that wall motion does not have significant influence on the global fluid dynamic characteristics of the femoral artery bifurcation. Longer arterial segments need to be simulated to see the effect of wall motion on tortuousity which was previously cited as an important factor in the development of atherosclerosis at the femoral artery.
URI: https://hdl.handle.net/20.500.14279/4369
ISSN: 00906964
DOI: 10.1007/s10439-008-9558-0
Rights: © 2008 Biomedical Engineering Society
Type: Article
Affiliation : University of Alabama at Birmingham 
Cyprus University of Technology 
Publication Type: Peer Reviewed
Appears in Collections:Άρθρα/Articles

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