Pulsed Doppler Imaging and Spectrum Analysis for Detection of Carotid Artery Disease

Murie, J.A.; Quin, R.O.; Forrest, H.; Sheldon, C.D.
April 1984
Angiology;Apr1984, Vol. 35 Issue 4, p215
Academic Journal
One hundred carotid arteries in 53 patients suffering from transient cerebral ischaemia or amaurosis fugax have been studied prospectively. Internal carotid arteries were assessed by a six-channel pulsed Doppler imaging system combined with Doppler spectrum analysis and the findings compared with those obtained by X-ray contrast arteriography. Stenosis (>25% diameter reduction) was correctly diagnosed by ul- trasonography with a sensitivity of 93% and a specificity of 96%. Occlusion was correctly diagnosed with a sensitivity of 92% and a specificity of 97%. The ability to recognize arterial stenosis and occlusion with this noninvasive system suggests that it has a major part to play in screening patients with suspected carotid artery disease.


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