Biomedical Engineering Reference
In-Depth Information
[
mmHg]
Saccular
Aneurysm
Stress Local Maximum
Bleb
1920
1440
Phantom Lumen
5.0mm
P
min
=85mmHg
a)
P
max
=115mmHg
960
Stress Local Maximum
Bleb
Saccular
Aneurysm
480
>200mmHg
c)
b)
Before Rupture
After Rupture
0
Figure 6.19
(a) Phantom of saccular aneurysm with bleb. (b) Source
image example for stress measurement, green light intensity
represents the stress in the phantom wall. Bleb shape is
appreciated over 200 mmHg. (c) Stress analysis in Aneurysm
Bleb phantom with pulsed flow circulation at: minimum
pressure, maximum pressure, before rupture and after rupture.
Red arrows point a measurement distortion appearing when
the angle between the light beam and
s
increases.
3
