CTA与MRA对颅内动脉瘤诊断价值探讨

Evaluation of CTA and MRA in Diagnosis of Intracranial Aneurysms

目的探讨CT血管造影(CTA)与磁共振血管造影(MRA)对颅内动脉瘤的诊断价值。方法对120例疑似颅内动脉瘤患者均行CTA,MRA及数字减影血管造影(DSA)检查,以DSA检出结果为金标准,将两种检查结果与其进行对比,比较两者的诊断准确性、灵敏性及特异性。结果 DSA检出颅内动脉瘤104例,CTA检出动脉瘤93例,MRA检出动脉瘤89例;CTA诊断灵敏度、特异度、准确度分别为86.5%,72.7%,89.4%;MRA诊断灵敏度、特异度、准确度分别为78.8%,53.3%,85.6%,两者差异无统计学意义(P>0.05)。结论CTA与MRA对颅内动脉瘤诊断无明显差别,可作为DSA的辅助检查方法。

Objective To estimate the values of CTA and MRA in diagnosis of intracranial aneurysms.Methods One hundred and twenty patients with suspected intracranial aneurysms were performed CTA,MRA and DSA examination. The test results of CTA and MRA were compared with DSA which was used as the gold standard,compared their sensitivity,specificity and accuracy in diagnosis of intracranial aneurysms. Results One hundred and four cases of intracranial aneurysms were detected by DSA,93 cases were diagnosed by CTA,and 89 patients were diagnosed by MRA. The sensitivity,specificity and accuracy of CTA were 86. 5%,72. 7%,89. 4%; The sensitivity,specificity and accuracy of MRA were 78. 8%,53. 3%,85. 6%. The difference was not statistically significant（ P〉0. 05）. Conclusion There is no obvious difference between CTA and MRA in the diagnosis of intracranial aneurysms,and they can be used as a supplementary examination method of DSA.