Patient-Specific Vascular Modeling - Microsurgery: Advances, Simulations, and Applications - page 96

Pulsatile Pump
Flow Out
Arterial Model
Flow In
Catheter
Figure 3.20 Hardware setup for simulating endovascular intervention
with proposed vascular model in the existence of pulsed blood
low.
The proposed vessel model also reproduces the physical
characteristics of artery tissue, such as elastic modulus, Poisson's
ratio and friction coeficient, within 5% of errors. Consequently, it
allows simulating neurovascular procedures with realistic dynamic
characteristics: the delicate feel of operating catheters and the
dynamic behavior of surgical instruments, such as slip/stick motion
or unwinding motion. This modeling technique has sub-millimeter
modeling resolution for patient-tailored models of blood vessels
and reproduces physical characteristics of artery tissues; therefore
it is useful for simulating neurovascular intervention for surgery
planning and for simulator-based training.
3.11 Clinical Evaluation
In following section, several vessel models of actual cerebrovascular
diseases are constructed by using the patient-speciic modeling
method presented previously. Then the proposed vascular model
is evaluated by simulating endovascular intervention procedures
with this model, and the performance and utility are discussed
from the viewpoint of clinical use. Vascular models of ive cases of
conventional cerebrovascular disease are studied in the solid model
type and membranous model type.