Comparative study of computed tomography angiography and digital subtraction angiography in 102 cases of intracranial aneurysm

Objective To explore clinical values of computed tomography angiography(CTA) and digital subtraction angiography(DSA) in intracranial aneurysm.Methods There were 102 cases of subarachnoid hemorrhage(SAH) caused by aneurysm in hospitalized patients,in which 52 cases were male,50 cases female.All the patients underwent CTA and DSA examinations.If both CTA and DSA were negative,CTA would be reviewed four weeks later.Comparisons of differences between CTA and DSA were evaluated in diagnosis and prompt treatment of intracranial aneurysm.Results 108 aneurysms were confirmed in 102 patients.107 aneurysms were detected and two were false negative by CTA,in which one was false positive.107 aneurysms were detected by DSA and one was false negative.CTA suggested possible intervention or surgical treatment in 100 aneurysms.In other 7 aneurysms,the conservative therapy was accepted due to great base or too much branch of aneurysms.DSA suggested possible interventional or surgical treatment in 100 aneurysms,conservative treatment in 7 aneurysms.There were no significant difference between the two ways.Conclusion DSA for the diagnosis of intracranial aneurysms as a conventional method remains the gold standard.As a simple non-invasive vascular screening method,CTA can be used as the primary diagnosis mode of SAH and had a more practical value in postoperative patients,even CTA has broad prospects in the etiologic diagnosis of acute SAH.