J0203-1-2 Hemodynamic studies of coiling in cerebral aneurysm model

Abstract

The coil embolization for cerebral aneurysm is one of the effective treatments. However, sometimes blood flow may induce recanalization or growth of the aneurysm. Therefore, the measurements of flow speed with coils in aneurysm are necessary for analyzing the effect of coil on the flow in the aneurysm. However, the method for quantitative measurement using an optical image based velocimetry such as PIV has not been established because coil makes shades in flow field. In this study, we tried to identify the shades by coils and the traces by particles by superimposing consecutive images. Several parts of coils are placed on out of aneurysm cavity and it placement may induce that the speed in inflow zone with coils is larger than that of no coil model. These results will clarify the relationship between coil formation at the neck and the flow in aneurysm.