FIG 1. Case 1. Anteroposterior (AP) angiograms obtained in a 37-year-old woman with a progressive alteration of consciousness, with a motor ocular deficit, right hemiparesis, and eventual coma.

A, View of the posterior circulation after an injection through the left vertebral artery. The proximal basilar artery is occluded.

B, View of the basilar artery after the injection of 1,000,000 U of urokinase. The basilar artery is mostly recanalized. A residual clot (arrow) occludes the basilar bifurcation.

C, View of the basilar artery after thromboaspiration. The basilar artery is permeable after aspiration with a 4F catheter placed at the level of the thrombus.