The V4 segment is the intracranial vessel that joins the contralateral vertebral artery to form the basilar artery. This segment is infrequently affected by atherosclerosis, but is vulnerable to ...

Background: Vertebral artery dissection (VAD ... Subarachnoid hemorrhage was seen only with intracranial dissections (57% vs. 0%, P=0.003). Fewer than half of the patients had obvious trauma ...

Patients with vertebrobasilar stenosis are currently being enrolled in two other randomized studies; the Vertebral Artery Stenting Trial (VAST), 8 for stenting of intracranial or extracranial ...

all from the vertebral artery dissection. Complications after TPA or TNK for stroke include intracranial hemorrhage, cardiac tamponade (especially if the stroke was caused by aortic dissection ...

In 21 cases at least 1 extracranial cerebral vessel was ... as described above, and the vertebral arteries were visualized by retrograde brachial-artery catheterization according to the Seldinger ...