title: Pulsed Doppler imaging for carotid artery disease.
abstract: Ultrasonic imaging using a six-channel pulsed Doppler system combined with Doppler spectral analysis of 65 carotid bifurcations has been studied in a prospective clinical trial. The results were compared with X-ray contrast angiography. An overall sensitivity in excess of 90 per cent was achieved using the ultrasound technique, with a specificity of 89 per cent in the detection of significant stenosis or occlusion of the internal carotid artery. The ability to recognise significant arterial stenosis with a non-invasive system suggests that it has a major part to play in screening patients with suspected carotid artery disease.
mesh_terms: D000368:Aged; D002340:Carotid Artery Diseases / Q000175:diagnosis*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D014463:Ultrasonography