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Flow behaviour in an asymmetric compliant experimental model for abdominal aortic aneurysm.

Abstract：

:An experimental study was carried out on asymmetrical abdominal aortic aneurysm (AAA) to analyse the physiological flows involved. Velocity measurements were performed using particle image velocimetry. Resting and exercise flow rates were investigated in models with rigid and compliant walls to assess the parameters affecting the flow behaviour. The secondary flow patterns, and especially the evolution of the vortices within the AAA, were found to be highly dependent on both the flow waveforms and the wall behaviour. Vortices impacts on the distal walls of the AAA occur in the compliant model and can increase the local pressure on the AAA walls and thus increase the wall stresses; AAA wall stresses are one of the most important factors contributing to ruptured aneurysm.

journal_name

J Biomech

journal_title

Journal of biomechanics

authors

Deplano V,Knapp Y,Bertrand E,Gaillard E

doi

10.1016/j.jbiomech.2006.11.017

subject

Has Abstract

pub_date

2007-01-01 00:00:00

pages

2406-13

issue

11

eissn

0021-9290

issn

1873-2380

pii

S0021-9290(06)00466-0

journal_volume

40

pub_type

杂志文章

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