Enhancing understanding of stent-induced deformation in MCA aneurysms: a hemodynamic study

Abstract

Abstract This article provides a comprehensive hemodynamic assessment of two endovascular techniques for treating cerebral aneurysms. Through finite volume simulations of pulsatile blood flow in saccular aneurysms, we evaluated hemodynamic factors under two coiling conditions with varying porosities and deformation stages to determine the most effective treatment for each case. Our analysis shows that stent and coiling treatments are more effective for aneurysms with smaller sac volumes. In particular, stent placement is found to be more effective than coiling for managing saccular aneurysms. The results indicate that stent-induced deformation effectively redirects the main blood flow, significantly lowering the risk of aneurysm rupture near the ostium. Obtained results emphasize the role of deformation and porosity in controlling wall shear stress, which is essential for understanding aneurysm progression and potential rupture risk.