title: [Value of bidirectional and transcranial Doppler studies in vascular insults of the vertebro-basilar area: 37 cases].
abstract: The examination techniques for identification of extra- and intracranial vertebral and basilar arteries are described. The clinical, Doppler sonographic and angiographic findings in 37 patients are presented and discussed. The vessels were recorded from a nuchal position via the posterior bone and/or the foramen magnum. A good correlation with the angiographic findings was found in 75.6% of cases but false-positive or false-negative results were observed in 9 patients. These results are good for Doppler evaluation of patients with vertebrobasilar circulation abnormalities, though angiography is still indicated when making a therapeutic decision.
authors.affiliation: Centre EEG-EMG et de diagnostic neurophysiologique, Centre hospitalier universitaire vaudois (CHUV), Lausanne.
authors.forename: P A
authors.initials: PA
authors.lastname: Uldry
authors.forename: P A
authors.initials: PA
authors.lastname: Despland
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001488:Basilar Artery / Q000000981:diagnostic imaging; D002533:Cerebral Angiography; D002561:Cerebrovascular Disorders / Q000000981:diagnostic imaging* / Q000503:physiopathology; D005188:False Negative Reactions; D005189:False Positive Reactions; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012680:Sensitivity and Specificity; D014463:Ultrasonography; D014711:Vertebral Artery / Q000000981:diagnostic imaging; D014715:Vertebrobasilar Insufficiency / Q000000981:diagnostic imaging*
vernacular_title: Intérêt du Doppler bidirectionnel et transcrânien dans les atteintes vasculaires du territoire vertébro-basilaire: 37 cas.