Carotid phono-angiography and directional Doppler ultrasound in the assessment of carotid artery stenosis.
A combination of non-invasive tests consisting of Doppler ultrasound carotid velocity assessment, carotid phono-angiography and directional Doppler supra-orbital flow evaluation was used to detect internal carotid stenosis of 50% or more in patients with symptoms suggestive of cerebrovascular disease. When compared with contrast arteriography in 75 carotid arteries this battery of non-invasive tests detected 18 of 19 cases of carotid stenosis, resulting in a sensitivity of 95%. Three false-positive results yielded a specificity of 95%. The accuracy achieved with this non-invasive battery of tests suggested that clinical decisions are warranted on the basis of their results.
D000792:Angiography; D001157:Arterial Occlusive Diseases / Q000175:diagnosis / Q000000981:diagnostic imaging; D002340:Carotid Artery Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging; D002342:Carotid Artery, External; D002343:Carotid Artery, Internal; D006801:Humans; D012039:Regional Blood Flow; D014463:Ultrasonography