Comparative analysis of the cerebral artery occlusion:transcranial doppler versus digital subtraction angiography

Objective To evaluate the diagnostic value of transcranial doppler(TCD) in detecting cerebral artery occlusion against digital subtraction angiography(DSA).Methods We retrospectively analyzed 83 patients's DSA and TCD results who had cerebral artery occlusion.TCD and DSA detection results were compared.Results The TCD showed that there were 38 occlusion of cerebral arteries with DSA detection to meet,among them 1 TCD diagnosis of occlusion of basilar artery in normal DSA detection.The TCD showed that there were 74 stenosis of cerebral arteries,but the DSA showed there were 43 corresponding cerebral artery occlusion,in which 31 TCD diagnosis of stenosis of cerebral arteries in normal DSA detection.Detection of DSA found another 18 occlusion of cerebral arteries of normal TCD detection.Regulating the result of DSA as the standard,we can calculate the TCD diagnosis of arterial occlusion or stenosis of the sensitivity of 81.81% and the sensitivity of 96.49%.Conclusion As the first method in screening of cerebral artery occlusion,TCD had higher specificity and sensitivity for the diagnosis of cerebral artery occlusion.