64层螺旋CTA与DSA在基底动脉狭窄研究中的应用

目的：探讨64层螺旋CTA与DSA在基底动脉狭窄的临床应用价值。方法：收集临床拟诊为脑梗死或TIA发作的患者152例，进行64层螺旋CTA检查并同时行DSA检查，将CTA与DSA结果相对照，分别计算出基底动脉狭窄程度的敏感性和特异性。结果：本组行CTA检查的152例患者中有88例患者基底动脉有不同程度的狭窄，同时行DSA检查判断基底动脉狭窄程度，计算出基底动脉狭窄CTA与DSA的敏感性和特异性为73．9％、85．4％。结论：64层螺旋CTA能够清晰地显示基底动脉系统的异常，在某些方面上可替代DSA检查。

Application of 64-slice spiral CT angiography and DSA in basilar artery stenosis

Objective To explore the clinical application values of 64-slice spiral CT angiography(CTA) and DSA in basilar artery stenosis.MethodTotal 152 patients were clinically diagnosed as cerebral infarction or TIA.They were examined by 64SCTA and DSA.The results of CTA were compared with that of DSA.The sensitivity and specificity of CTA and DSA of basilar artery were figured out.ResultsFor 88 of 152 patients had stenosis in basilar artery.They were examined by DSA.The diagnostic sensitivity and specificity of basilar artery stenosis were 73.9% and 85.4%.Conclusion64SCTA can demonstrate the changes of basilar artery stenosis and can replace DSA in certain field.