A comparative study of computed tomography angiography and digital subtraction cerebral angiography in patients with transient ischemic attack
Abstract：Objective To observe the differences of computed tomography angiography (CTA) and digital subtraction cerebral angiography (DSA) in the evaluation of cerebrovascular situation of the patients with transient is -chemic attack(TIA).Methods Seventy-four patients with TIA were examined by CTA and DSA , then the differ-ences of results were observed.Results In the internal carotid artery system TIA, there was no statistically signifi-cant difference in the sensitivity and specificity between CTA and DSA (P>0.05);And in the vertebral-basilar ar-tery system TIA, the sensitivity and specificity of DSA was higher than that of CTA ,the difference was statistically sig-nificant(P<0.05);But on the aspect of the degree of vascular stenosis ,DSA was superior to CTA, the difference was statistically significant(P<0.05).Compared with DSA,the consuming time and incidence of complications were lower in CTA(P<0.01 and P<0.05,respectively), and the inspecting cost was lower obviously .Conclusion CTA is a screening method for assessment of cerebral vascular status in the internal carotid artery system TIA , but the DSA is still the best choice in assessment of cerebral vascular the status in the vertebral -basilar artery system TIA.
Keywords：Computed tomography angiography (CTA)Digital subtraction cerebral angiography (DSA)Transient ischemic attack(TIA)
Publication Date：2013-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 839-841 )