A Comparative Study on CTA and DSA in Diagnosis of Intracranial Aneurysms / 实用放射学杂志

ABSTRACT

Objective To evaluate the value of three dimensional CT angiography in the diagnosis of intracranial aneurysms by the comparison with DSA.Methods CTA and DSA were performed in 30 patients(aged 34~76 years) who were highly suspected with intracranial aneurysms.Feasible endovascular treatment were performed simultaneously.The sensitivity,specificity,accuracy in detecting the aneurysms,in demonstrating the neck of the aneurysms and the relationship of parent artery were compared between CTA and DSA.Results 26 intracranial aneurysms were detected by CTA,the sensitivity,sepcificity and accuracy were 95.5%,87.5% and 93.3% respectively.There were no statistical differences among the sensitivity,specificity,accuracy between CT and DSA(?