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目的探讨64排、256层CTA与平板DSA诊断颅内动脉瘤的诊断价值。方法收集2011年1月-2014年9月该院颅内动脉瘤待确诊患者190例,所有患者分别给予64排、256层CTA和平板2D-DSA、3D-DSA检查,根据诊断金标准统计各项检查的灵敏度、特异度、阳性和阴性似然比,比较其差异。结果 256层CTA与3D-DSA诊断效果相近,差异均无统计学意义(P>0.05),且二者诊断的灵敏度、阳性似然比和阴性似然比均优于64排CTA和2D-DSA,差异有统计学意义(P<0.05),但其诊断特异度无明显差异(P>0.05)。结论 256层CTA和64排CTA效果分别不亚于平板3D-DSA和2D-DSA,且256层CTA诊断效果更优。
Objective To investigate the diagnostic value of 64-slice, 256-slice CTA and DSA in diagnosis of intracranial aneurysms. Methods Totally 190 patients with intracranial aneurysms to be diagnosed in our hospital from January 2011 to September 2014 were collected. All patients were examined by 64-slice, 256-slice CTA and 2D 2D-DSA and 3D-DSA respectively. According to the diagnostic criteria The sensitivity, specificity, positive and negative likelihood ratios of the items examined were compared for differences. Results There was no significant difference between 256-slice CTA and 3D-DSA (P> 0.05), and the diagnostic sensitivity, positive likelihood ratio and negative likelihood ratio were better than 64-row CTA and 2D-DSA , The difference was statistically significant (P <0.05), but the diagnostic specificity was no significant difference (P> 0.05). Conclusion The results of 256-layer CTA and 64-row CTA are as good as that of plate 3D-DSA and 2D-DSA, respectively.