FIG 1. Patient 6, a 53-year-old woman with a ruptured basilar tip aneurysm 14 days after initial hemorrhage.

A and B, Left vertebral artery angiograms, frontal (A) and lateral (B) projections, show severe vasospasm of the basilar artery and posterior cerebral arteries. Present is a basilar tip (single solid arrow) and aneurysm (double solid arrows) complex pointing posteriorly. Note thalamoperforators (open arrow) appearing to arise from the basilar tip.

C, Left vertebral artery angiogram, frontal projection, shows partial coiling of the aneurysm.

D and E, Left vertebral artery angiograms, frontal (D) and lateral (E) projections obtained after embolization of the aneurysm and balloon angioplasty, show improved caliber of the midbasilar artery. Note residual vasospasm still exists at the origin of aneurysm entry zone.