Patient-Specific Vascular Modeling - Microsurgery: Advances, Simulations, and Applications - page 113

preferable that the comprehensive simulator reproduces the whole
arterial area from femoral artery to carotid artery, of which diameter
exceeds 1 mm, where catheters may be inserted by this surgical
methodology. With this purpose, the high-resolution luoroscopic
image of the whole human body was acquired in this research by
using 64-row multi-slice CT (subject: 53 year olds, male, no disease).
Here, to acquire the high-resolution data of the cerebral artery, this
imaging was executed separately for the head area (high-resolution)
and the body area (normal resolution). For the head area, imaging
resolution was set to 0.468 mm, and slicing pitch was set to 0.3 mm,
in consideration of satisfactorily extracting three-dimensional shape
of blood vessels with up to 1 mm internal diameter, and totally 1134
sheets of luoroscopic images were taken. And for the body part, the
resolution was set to 0.625 mm and the slicing pitch was set to 0.8
mm and we obtained totally 2930 sheets of images. Figure 3.42 shows
the sagittal section image of the object human body reconstructed
from this information. As conirmed from this igure, this data set
contains the required entire vessel with satisfactory resolution and
contrast.
a)
b)
Figure 3.42 (a) Coronal and (b) sagittal cross-sectional image of the human
body reconstructed from 2930 slices of CT images obtained
with a 64-row multi-slice CT (resolution: 0.625 mm, slicing
pitch: 0.8 mm; green area indicates the extracted artery).
The reconstructed three-dimensional blood vessel structure
obtained from this scan is shown in Fig. 3.43. Figure 3.43a shows