Neck Vascular Ultrasound And Head Mra Value In The Diagnosis Of Ischemic Cerebrovascular Disease

Objective: To evaluate the diagnostic values of carotid duplex ultrasound and MRA in patients with ischemic cerebralvascular disease and to evaluate whether carotid atherosclerosis is related to cerebrovascular disease. Methods: We studied 80 cases of cerebral thrombosis, 30 cases of transient ischemic attack and 40 controls . Carotid atherosclerosis was assessed by duplex ultrasound .40 cases of cerebral thrombosis were examined with MRA. Comparison analysis were performed by using a SPSS 11.5 statistical package. Results: The prevalence of carotid atherosclerosis in C1 group ,TIA group and controls were 58.75%, 50.00% and 22.50% , respectively. It is significantly higher in CI group than controls ( P < 0.01 ) . IMT was significantly higher in Cl group versus controls ( P < 0.01 ) . The detection rate of blet in C1 groupTIA group and controls were 67.5%, 53.3% and 10.0% , respectively. It is significantly higher in Cl group than controls ( P < 0.01 ). Plaques is the most common near the bilateral plaques or ipsilateral plaques to the ischemic event. Carotid duplex ultrasound has high coincidence rate with MRA in diagnosis of internal carotid arterial occlusion (100%). The coincidence rate of mild and severe arterial stenosis diagnoses by carotid duplex ultrasound and MRA were 75% and 80% , respectively. Logistic regression analysis identified 1 significant variable that accounted for the carotid atherosclerosis. That was hypertension. Conclusion: The baseline degree of carotid artery stenosis on carotid duplex ultrasound was the most significant predictor of future ischemic cerebralvascular disease. Routine screening with duplex ultrasound in high-risk patient population is justified and costeffective, as MRA's high cost precludes its using as a screening modality.