CTA后期三维重建与DSA对老年肺栓塞的诊断价值对照研究

Diagnostic Value of Three-dimensional Reconstruction of CTA and DSA in Elderly Patients with Pulmonary Embolism

目的对比分析CT血管成像(CTA)后期三维重建与肺动脉造影(DSA)对老年肺栓塞的诊断价值。方法选取本院2017年4月至2019年6月确诊为肺栓塞的46例患者作为研究对象,分析其直接征象与间接征象,比较DSA、CTA检查诊断肺栓塞的敏感性、特异性、准确性。结果CTA检查.诊断肺栓塞.的敏感性.、特异性、准确性分别为8750%、10000%、8913%;DSA检.查诊断肺栓.塞的敏感性.、特异性、准确性分别为9250%、10000%、9348%。两者诊断肺栓.塞的敏感性、特异性、准确性比较无明显差异(P>005)。结论CTA后期三维重建诊断肺栓塞的效能与DSA相近,具有较高的敏感性、特异性、准确性,且属于无创性检查,可作为替代DSA的一类影像学方法。

Objective To compare and analyze the diagnostic value of three-dimensional reconstruction of CT angiography(CTA) and digital substraction angiography(Ds A) in elderly patients with pulmonary embolism. Methods 46 patients diagnosed with pulmonary embolism in our hospital from April 2017 to June 2019 were selected as the research objects, and their direct signs and indirect signs were analyzed to compare the sensitivity, specificity and accuracy of Ds A and CTA in the diagnosis of pulmonary embolism. Results The sensitivity, specificity, and accuracy of CTA in the diagnosis of pulmonary embolism were 87.50%, 100.00%, and 89.13%;the sensitivity, specificity, and accuracy of Ds A in the diagnosis of pulmonary embolism were 92.50%, 100.00%, and 93.48%. There was no significant difference in sensitivity, specificity, and accuracy between them in the diagnosis of pulmonary embolism(P>0.05). Conclusion The efficacy of three-dimensional reconstruction of CTA in the diagnosis of pulmonary embolism is similar to that of Ds A. It has high sensitivity, specificity, and accuracy, and it is a non-invasive examination, which can be used as a type of imaging method which can substitute DsA.