Volume 63 No 2  Cover Story

Intracranial flow-diverting stent (FDS) was developed to address several challenges related to coil embolization by targeting aneurysm hemodynamics to promote aneurysm occlusion. The figures shows that successful FDS deployment requires a balance between pushing deliverywire and unsheathing microcatheter from the device. Left : It is ideal that the proximal or “unsheathing” FDS be shaped like a wine glass. Middle : Insufficient forward-loading or aggressive unsheathing can result in cells expanding in the shape of a champagne flute. Right : Excessive forward loading of the FDS will result in the expanding FDS cells taking the shape of a martini glass.