How do hemodynamic factors change during the growth process of micro saccular intracranial aneurysms in computational models?
Computational fluid dynamics modeling demonstrates that mean wall shear stress is significantly higher in smaller (scaled-down) models of saccular intracranial aneurysms.
The significance of the hemodynamic analysis in the growth process of the micro saccular intracranial aneurysm is undeniable. This study has investigated the change of hemodynamic factors in the evolution process of the saccular aneurysm. The main goal is to estimate the rupture risk of aneurysm in the growth process. The numerical method is applied for the investigation of the hemodynamic factors in the evolution process of the saccular intracranial aneurysms. Wall shear stress, pressure and Oscillatory index are analyzed in this research. Two scale-down models and one scale-up geometry of the saccular aneurysm are studied in this paper. Presented results disclosed that mean wall shear stress increases more than two times when the intracranial aneurysm scale is 1/4 original size.
Shiryanpoor et al. (Mon,) studied this question.
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