Biomedical Engineering Reference
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Fig. 1.13
Analysis of WSS on the arterial tissue in the stented arteries. Computational model-
ling can be extended to analysis of commercial stents—Wallstent, Bx-Velocity, Aurora, and NIR
(Image from Duraiswamy et al. 2009). Other parameters of analysis include (
a
) Normalized
effective WSS, (
b
) normalized average axial WSS, (
c
) normalized average transverse WSS, and
(
d
) ratio of normalized axial WSS to transverse WSS are presented for analysis
Fig. 1.14
Analysis of WSS and WSSG on the arterial tissue in the stented arteries. In the study
by Murphy and Boyle (2010), the wall shear stress gradient (
WSSG
) was used. Three commercial
stents: Palmaz-Schatz (
PS
) stent, Gianturco-Roubin II (
GR-II
) stent, and Cordis Bx-Velocity (
Bx
)
stent, are analysed based on the mean WSSG value. The Bx stent shows a 12 % higher value than
that for the PS stent due to regions of WSSG exceeding 2000 N/m
3
on the uneven prolapse near
the S-connectors of the Bx stent
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