[Reliability of the results of the ultrasonic hemodynamic recording (Doppler effect) in the diagnosis of cerebral ishemic ischemia of carotid origin].
The Doppler ultrasound diagnosis of carotid artery stenosis (asymetrical systolic and diastolic flows; elevated resistance index: ratio of flow pulse amplitude to systolic and diastolic values; flow reversal in the ophtalmic artery) is compared, in 52 patients, to the clinical, angiographic (40 patients) an surgical findings and to the peroperative measure of intra-arterial pressure and flow (30 patients). Its reliability is proved as a guide for angiographic exploration and for postoperative watching, but it is restricted to great vessels (cervical carotid artery) and is unable to detect ulcerated plate without stenosis.
D000792:Angiography; D001775:Blood Circulation; D001794:Blood Pressure; D001921:Brain / Q000098:blood supply*; D002340:Carotid Artery Diseases / Q000175:diagnosis*; D003251:Constriction, Pathologic; D004301:Doppler Effect; D055590:Electromagnetic Phenomena; D006439:Hemodynamics; D006801:Humans; D007511:Ischemia / Q000175:diagnosis*; D014463:Ultrasonography
Fiabilité des résultats du bilan hémodynamique ultrasonographique (effet Doppler) dans le diagnostic de l'ischémie cérébrale d'origine carotidienne.