Typically, two vertebral arteries join and form the basilar artery. The vertebrobasilar system ... Neuroimaging of Ischemic Stroke With CT and MRI: Advancing Towards Physiology-Based Diagnosis ...

In addition, in cases of subclavian steal from the vertebral artery, there is a graded system ... The widespread use of CT scans for imaging the vascular system was made possible by the ...

Case 1. C.A. (S.E.H. No. 66–15874), a 49-year-old man, had syncopal episodes for 3 years occurring about once a week during the past year. The attacks were precipitated by driving a bus.