Effect of inflow and outflow angles on the computational hemodynamics in abdominal aortic aneurysm

Shi, Z. & Li, Z. Y. (2013) Effect of inflow and outflow angles on the computational hemodynamics in abdominal aortic aneurysm. In Long, Mian (Ed.) World Congress on Medical Physics and Biomedical Engineering May 26-31, 2012, Beijing, China, Springer Berlin Heidelberg, Beijing, China, pp. 153-156.

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To help with the clinical screening and diagnosis of abdominal aortic aneurysm (AAA), we evaluated the effect of inflow angle (IA) and outflow bifurcation angle (BA) on the distribution of blood flow and wall shear stress (WSS) in an idealized AAA model. A 2D incompressible Newtonian flow is assumed and the computational simulation is performed using finite volume method. The results showed that the largest WSS often located at the proximal and the distal end of the AAA. An increase in IA resulted in an increase in maximum WSS. We also found that WSS was maximal when BA was 90°. IA and BA are two important geometrical factors, they may help with AAA risk assessment along with the commonly used AAA diameter.

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ID Code: 90291
Item Type: Conference Paper
Refereed: No
Keywords: Abdominal Aortic Aneurysm, Bifurcation Angle, Inflow Angle, Rupture, Wall Shear Stress
DOI: 10.1007/978-3-642-29305-4_42
ISBN: 9783642293054
ISSN: 1680-0737
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > Institutes > Institute of Health and Biomedical Innovation
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2013 Springer-Verlag.
Deposited On: 30 Nov 2015 02:54
Last Modified: 04 Dec 2015 01:58

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