Khan, H G The effect of contrast material on transcranial Doppler evaluation of normal middle cerebral artery peak systolic velocity. [electronic resource] - AJNR. American journal of neuroradiology Feb 2000 - 386-90 p. digital Publication Type: Journal Article ISSN: 0195-6108 Subjects--Topical Terms: AdolescentAdultAgedBlood Flow Velocity--drug effectsContrast Media--pharmacologyFemaleFourier AnalysisHumansImage EnhancementMaleMiddle AgedMiddle Cerebral Artery--diagnostic imagingPolysaccharides--pharmacologySystole--drug effectsUltrasonography, Doppler, Transcranial