Patient-Specific Vascular Modeling - Microsurgery: Advances, Simulations, and Applications - page 101

3.11.3 Medical Treatment Simulation

This section reports on the result of simulating coil embolization, an
endovascular treatment for aneurysm, by using the vascular models
of the ive representative cases shown in Section 3.11.1. Moreover,
the simulation of aneurismal clipping, conventional craniotomy
treatment for aneurysm, is also executed, and it experimental result
is detailed. By this way, the utility of proposed vascular model for
the simulation of clinical medical treatment is evaluated. To exert
this experiment propriety, following experiments are executed by
the interventionalist using an experimental setup similar to the one
described in the previous section.

3.11.3.1 Aneurismal coil embolization simulation

Under above-mentioned composition, a micro-catheter was inserted
through a 30 cm-long silicone tube connected to the entrance port
of the vascular model, and coil embolization was executed to the
aneurysm. Here, the Y-shaped connector, which is commonly used
in actual surgery, was installed at the end of the silicone tube, and
the medical equipment was operated by the similar procedure as the
actual surgery.
Figure 3.29 shows the progress of the simulation of the surgical
procedure for coil embolization executed for case No. 2. According
to the interventionalist's criteria, the two-dimensional coil (spring
shaped coil widely used for embolization treatment) deformed
into intricate cage shape during the embolization treatment, and
deploying in a similar way than actual surgery. Consequently, it was
conirmed that the process of coil embolization was satisfactorily
reproduced.
Figure 3.30 shows the visualized blood streaming after this
treatment, which is managed by injecting minute air bubble from
a Y-shaped connector port into the low. As conirmed from this
igure, the blood low in the aneurysm was satisfactorily intercepted
after the embolization treatment, and the interventionalist could
conirm that coil embolization had been achieved. Consequently, it
was conirmed that the proposed vascular model allows simulating
embolization treatment at high-level reproduction.