Comparison of the Effects of Embolic Coils and a Low Porosity Stent on Cerebral Aneurysm Fluid Dynamics

Wide-neck cerebral aneurysms are difficult to treat with embolic coils. Concerns over the stability of coils within the aneurysmal sac often lead to incomplete filling of the sac, which may cause recurrence [1]. To overcome this challenge, clinicians may deploy a high porosity stent in a staged process to act as a supporting bridge for coils. The stent is commonly deployed 6–8 week prior to coil embolization, which lengthens the treatment period [2].