Noninavasive angiography for the diagnosis of carotid artery disease using Doppler ultrasound (carotid artery Doppler).

800 patients evaluated for carotid artery stenosis, with a subset of 186 patients (249 angiograms) used for comparison, and 28 patients (32 extracranial endarterectomies) for intraoperative application.

Noninvasive angiography using bidirectional continuous-wave Doppler ultrasound (carotid artery Doppler) evaluating flow signals over terminal branches of the ophthalmic artery, common carotid arteries, and using compression techniques with a set of eight criteria.

Angiography (in a subset of 186 patients/249 angiograms).

Diagnostic reliability/accuracy for detecting carotid artery stenosis.surrogate