Computational study of blood hemodynamic in ICA aneurysm with coiling embolism

The importance of the blood flow feature on the hemorrhage of the cerebral aneurysm is confirmed by surgeons and scientists. In this paper, the effects of blood hemodynamics on the growth and rupture of the Internal Carotid Intracranial (ICA) are fully investigated. This study tries to demonstrate the blood feature inside the ICA at different time stages. Besides, the effect of coiling on blood characteristics is extensively studied in this research. Computational Fluid dynamic (CFD) is used for the analysis of the blood hemodynamics on the wall shear stress and pressure distribution within the aneurysm. Obtained results indicate that reducing the coiling porosity from 0.89 to 0.79 declines maximum WSS by about 26% and 61% for HCT = 0.35 and 0.45, respectively, at the peak systolic stage. Our findings show that decreasing the porosity (or increasing coiling fraction) would decrease the maximum OSI by more than 55% in high blood viscosity of HCT = 0.45.

Automated summary

The importance of blood flow characteristics in the hemorrhage of cerebral aneurysms has been confirmed. This study investigates the effects of blood hemodynamics on the growth and rupture of the Internal Carotid Intracranial (ICA) and demonstrates the blood features inside the ICA at different time stages. The study also examines the impact of coiling on blood characteristics. Computational Fluid Dynamics (CFD) is used to analyze the effects of blood hemodynamics on wall shear stress and pressure distribution within the aneurysm. The findings suggest that reducing coiling porosity can decrease maximum WSS and OSI, especially in high blood viscosity.