Patient-Specific Vascular Modeling - Microsurgery: Advances, Simulations, and Applications - page 103

cage with appropriate shape may not be formed or a part of the coil
may bulge out of the aneurysm. Figure 3.31 indicates that a similar
condition is well reproduced by the proposed vascular model. In
Fig. 3.31a, an appropriate cage shape is not formed because the 2D
coil diameter is rather small. As shown in Fig. 3.31b, not the entire
aneurysm was embolized because the selection of the coil was too
short; as for Fig. 3.31c, the coil embolism was appropriately achieved.
The main speciication of the coil selected through the embolism
simulation is summarized in Table 3.2. Consequently, it is conirmed
that our vascular model is helpful for the evaluation of embolization
treatment.

a) b)

c) d)

Figure 3.31 The inal state of coil embolization exerted with three different
coils for the aneurysm model of case No. 1: (a) Embolization
with coil A. Appropriate cage shape is not formed because
the 2D coil diameter is rather small. (b) Embolization with
coil B. Not the entire aneurysm was embolized because the
selection of the coil was too short. (c) Embolization with coil
C. The coil embolism is appropriately achieved with 2D coil.
(d) Embolization with coil D the coil embolism is appropriately
achieved with 3D coil.

Coil disengagement: As stated above, the pulsatile low similar to
human blood circulation is reproduced in vessel lumen with presented
simulation environment. As a result, it was conirmed that the swing
and the inducement of the coil according to pulsatile blood low, which