Characteristics and Clinical Course of Fusiform Middle Cerebral Artery Aneurysms According to Location, Size, and Configuration.

A previous meta-analysis for the natural history of vertebrobasilar dolichoectatic and fusiform aneurysms demonstrated that patients with fusiform aneurysms, which means c-type 2 in this study, had higher rupture rates than those with dolichoectatic aneurysms, which means c-type 3 in this study, and patients with dolichoectatic aneurysms had higher ischemic stroke rates than those with fusiform aneurysms, but this did not reach statistical significance [ 27 ].

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