Abstract W P70: What Cfd Parameter is Different Between Growing and No Growing Aneurysm
Background & Purpose: Research has not yet identified the growth mechanism of cerebral aneurysms. We investigated the values of CFD-derived parameters in cases of growing and non- growing aneurysms.
Methods: We extracted 30 growing and 30 non- growing aneurysm cases randomly from our database. Commercially available software (ANSYS ICEM CFD14.0) was used for both mesh generation and fluid simulation. The aneurysm geometries were extracted from CTA and analyzed using a mathematical formula for fluid flow under pulsatile blood flow conditions. Simulations were performed before and after growth, and hemodynamic parameters were compared between the two growing and no-growing groups.
Result: In the growing aneurysms group, The the “growth” area is was different from the bloodstream inflow “impact” area. There was no statistically significant difference in velocity, WSS and OSI between growing and no growing cases. Pressure, however, was significantly different between the two groups(P<0.05).
Conclusion: CFD-derived pressure values in the aneurysm dome may predict growth of aneurysms and therefore may also predict rupture.
Author Disclosures: H. Takao: Research Grant; Significant; FUJIFILM, Siemens Japan K.K.. Consultant/Advisory Board; Modest; ASAHI INTECC. S. Kadokura: None. T. Suzuki: None. Y. Kanbayashi: None. S. Masuda: None. K. Shinohara: None. A. Mohamed: Employment; Significant; Siemens Japan K.K.. M. Yamamoto: None. T. Ishibashi: None. F. Vinuela: Employment; Significant; DINR research grant. Y. Murayama: Research Grant; Significant; Siemens Japan K.K..
- © 2014 by American Heart Association, Inc.