Affiliations: School of Mechanical Engineering, The University of
Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan. | Institute of Industrial Science, The University of
Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan. | School of Medicine, Teikyo University, 2-11-2 Kaga,
Itabashi-ku, Tokyo 173-8605, Japan.
Abstract: The paper aims to investigate effects of blood vessel geometry on
hemodynamics of the cerebral artery, particularly the internal carotid artery
using computer graphics. The medical statistics show that generation and
rupture of the cerebral aneurysms is strongly correlated with the wall shear
stress and flow patterns in the blood vessel. In order to provide better
understanding of phenomena, the paper presents the numerical analysis system,
which consists of pre-processing, simulation and post-processing. In the
pre-processing, the medical imaging data, mainly CT (Computerized Tomographic)
angiography, are used to construct the three-dimensional geometry of the
artery. Various simulations are carried out varying curvature or location of
bifurcation, and the results are visualized to investigate geometry effect.
