Diagnostic Value of DSA Ultra Sonography and TCD in Carotid Terr Itory TIAS

Objective:To evaluate the diagnost ic values of DSA,ultrasonography and TCD in carotid terri tory TIA.Methods: 96 patients with TIA swere examined by DSA,ultrasonography and TCD.Results: DSA showed 78 cases(81.2%)were found artery stenosis in 96 cases with TIA.In general.there were more patientsith intracranial stenosis than extracranial stenosiS(57.5%、42.4%).Extracranial artery stenosiswere most common in Extracranial artery stenosiswere most common in the extracranial segments of internal carotid artery(45.2%),and the middle cerebral arteries were most common in the intracranial counterparts(41.2%).Abnormalities of intracranial arteries were detected by TCD in 83 cases(83/96,86.4%)and abnormalities of carotid arteries were detected by ultrasonography in 75 cases(75/96,78.1%).Conclusion: DSA,ultrasonography and TCD are useful in the evaluation of etiological factors of Tlhs.