ARUP; ISBN: 978-0-9562121-5-3 - CMBBE 2012 - Cardiff University

4.3 WSS results
Figure 8 shows the WSS results at t=0.45. The close up images for TAA shows the
comparison between multiple and upstream and that for AAA shows the comparison
between multiple and downstream. WSS was seen little change even with treatment in
either case. The same trend was also observed for WSS distribution in other times.
5. CONCLUSION
Fig. 8 WSS distribution before and after treatment at times t = 0.45
We examined the pressure and WSS distribution on outer aorta wall in pre- and post-
treatment for MAA. Our results showed that the pressure distribution of TAA on outer
aorta wall was increased after AAA treatment. This pressure result was agreed with
Yamazaki’s report (2) . Moreover, WSS distribution was almost unchanged. Therefore,
we thought that the expansion of aneurysm is related to the increase of pressure on
aneurysm wall in TAA.
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