FIG 1.

Representative case of FD malapposition resulting in incomplete occlusion. A, Image represents a hypophyseal aneurysm in the left internal carotid artery. B and C, These images were obtained by the dual-volume fusion reconstruction method. ISA on both sides of the aneurysm neck can be observed in the transverse (B) and sagittal planes (C) (white arrows). D, At 9 months after stent placement, the aneurysm has reduced in size, though the angiographic filling grade is B per the OKM grading scale.