title: [The transcranial Doppler in the adult. Preliminary results in 31 patients].
abstract: Non-invasive transcranial Doppler US investigation in adult patients was first described by Aaslid et al. (1982). The apparatus consists in a 2 MHz bidirectional pulsed Doppler with spectrum analyser. Middle and anterior cerebral arteries were insonated by transtemporal exploration, basilar artery by occipital foramen. The criteria of identification were: position and angulation of the probe, direction of the flow, depth of sample volume. The authors present a first series of 31 patients, all with cervical CW Doppler and B-mode Echo. The percentage of identification was: MCA 72%; ACA 69%; BA 54%. Some clinical cases are illustrated. The interest of the method is emphasized in spite of constraints depending on probe position and anatomical variability of the circle of Willis: ambulatory and non-invasive methods; assessment of intracranial blood flow in various conditions: cerebral ischemia and infarction, intracerebral angioma; complementarity with other non-invasive and non-expensive techniques: EEG and cervical US investigation.
mesh_terms: D000328:Adult; D000368:Aged; D000784:Aortic Dissection / Q000175:diagnosis; D001783:Blood Flow Velocity; D001927:Brain Diseases / Q000175:diagnosis*; D001932:Brain Neoplasms / Q000175:diagnosis; D002560:Cerebrovascular Circulation; D002561:Cerebrovascular Disorders / Q000175:diagnosis; D004453:Echoencephalography; D004569:Electroencephalography; D005260:Female; D006391:Hemangioma / Q000175:diagnosis; D006801:Humans; D008297:Male; D012212:Rheology
vernacular_title: Le Doppler transcrânien chez l'adulte. Résultats préliminaires chez 31 patients.