[Angiographic demonstration of the circle of Willis and posterior cerebral artery by carotid artery angiography--application of vertebral artery compression using ultrasonic A-scope echo of the vertebral artery as the index].
D000328:Adult; D002339:Carotid Arteries / Q000000981:diagnostic imaging*; D002533:Cerebral Angiography; D002561:Cerebrovascular Disorders / Q000000981:diagnostic imaging; D002941:Circle of Willis / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008722:Methods; D008875:Middle Aged; D014463:Ultrasonography; D014711:Vertebral Artery