Why the study?
Selecting the optimum endovascular method for treating different cerebral aneurysms has been a primary challenge for surgeons.
How do endovascular stenting and coiling affect hemodynamics and hemorrhage risk in computational models of internal carotid artery aneurysms?
How do endovascular stenting and coiling affect hemodynamics and hemorrhage risk in computational models of internal carotid artery aneurysms?
Computational hemodynamic analysis suggests endovascular techniques are more efficient for small ICA aneurysms, while stenting for giant aneurysms requires specific parent vessel alignment to effectively limit sac blood flow.
Should not yet change endovascular selection by aneurysm size; leaves open whether CFD can prospectively identify stent-responsive giant ICA aneurysms.
The selection optimum endovascular method for the treatment of different cerebral aneurysms has been the main challenge for surgeons. In the present article, the computational technique is used for the hemodynamic evaluation of two main endovascular techniques of stent and coiling for the reduction of the hemorrhage risk of ICA aneurysms. Comprehensive analyses of the blood flow are performed to detect potential regions with high risk at critical stages of the cardiac cycle. Two coiling porosity conditions and stent deformation have been investigated via computational study to reveal the main change related to hemodynamics when these techniques are implemented. The hemodynamic results of this study show that the endovascular technique is more efficient in small aneurysms rather than giant ones. Meanwhile, the stent treatment of the giant saccular aneurysm is effective when the parent vessel of this type of aneurysm is fully aligned and limited blood flow enters the sac area.
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Pei et al. (2024) studied this question.
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