脳前交通動脈回りに発生した実動脈瘤内の流れ構造(流体工学,流体機械)

概要

論文の詳細を見る
The mechanism involved in the formation and subsequent rupture of cerebral aneurysm has not been clarified adequately. The aneurysm frequently appears at the flow divider where the flow bifurcates to the anterior communicating artery and the anterior cerebral artery. In the present study, the flow pattern and the wall shear stress (WSS) within the real aneurysm model having bleb are measured using PIV. On the basis of the MRI data of human cerebral artery with aneurysm, the aneurysm model is reconstructed by the optical 3D design with CAD. WSS abruptly changes along the aneurysmal wall and minimum WSS appears at bottom wall of the bleb. Particularly, WSS is small along the bleb wall. It would be associated with the degeneration of bleb wall such as the formation of thrombosis.
社団法人日本機械学会の論文
2008-09-25