RESUMEN
The study population consisted of 646 carotid artery in 323 cases with 174/149 male/female ratio and a mean age of 54.6 +/- 3.9 years. They included cases with transient ischemic attack [TIA, 176 cases], developed stroke [CVA, 21 cases], cases with non-focal symptoms [NFS, 38 cases], cases with asymptomatic cervical bruit [CB, 58 cases] and normal volunteers [30 cases]. It was concluded that the best documented clinical indication for carotid duplex sonography is the detection of high grade stenosis in patients with TIA or stroke with good recovery. Particular attention should be paid for the study of the plaque morphology for detection of risky lesions that warrant surgical intervention. Excellent argument can be made for examination of asymptomatic persons particularly in the presence of any of the risky factors [hypertension, heart disease, smoking or diabetes]. These cases have to be scheduled for follow up duplex examination as a prophylactic measure to avoid if any future cerebral ischemic lesions is anticipated