PMC3130439_01
CT on admission showing diffuse subarachnoid hemorrhage in the basal cistern (a). 3D CT angiogram, superior posterior view (b), superior view (c), and inferior view (d) showing a segmental duplication of the distal one-third of the right A1 with blebs
SNI-2-85-g001.jpg
PMC3130439_01_SNI-2-85-g001.jpg
F1
Three-dimensional (3D) CT image reconstruction revealed a segmental duplication of the distal one-third of the right A1 segment, associated with an irregular aneurysm and blebs[Figure 1].
Preoperative right carotid angiogram showing two aneurysms appearing to be "kissing" each other, associated with A1 fenestration (a, b, c, and d). Coil embolization of distal aneurysm: e, coil embolization of both aneurysms: f, and final view: g
SNI-2-85-g002.jpg
PMC3130439_01_SNI-2-85-g002.jpg
F2
During the endovascular procedure, we used 3D angiographic reconstruction to determine the appropriate working angle for separating the aneurysmal sac from the fenestration[Figure 2].