Analysis of clinical value of multi-slice spiral CT in diagnosis of acute pulmonary embolism
Objective To explore the practical value of multi-slice spiral CT in diagnosis of acute pulmonary embolism.Methods 50 patients with suspected acute pulmonary embolism were selected for study,and multi-slice spiral CT and X-ray detection were performed simultaneously to evaluate the detection rate and accuracy of the two methods.The diagnostic results of the two methods were analyzed.The diagnostic efficacy,detection rate of different types of diseases and detection rate of embolization in different arterial branches were compared between the two methods.Results Using arteriography as the"gold standard",43 cases were positive(including 27 cases of acute generalized pulmonary embolism and 16 cases of acute generalized sub-pulmonary embolism)and 7 cases were negative(all of them were chronic pulmonary embolism).Multislice spiral CT showed 41 positive cases and 9 negative cases;X-ray showed 38 positive cases and 12 negative cases.The sensitivity of multi-slice spiral CT was 93.02%,the specificity was 85.71%,the diagnostic accuracy was 92.00%and the negative predictive value was 66.67%,which were higher than 76.74%,28.57%,70.00%and 16.67%of X-ray(P<0.05).There was no significant difference in positive predictive value between the two methods(P>0.05).The detection rates of multi-slice spiral CT for acute generalized pulmonary embolism,acute generalized sub-pulmonary embolism and chronic pulmonary embolism were 96.30%,100.00%and 100.00%,which were higher than 70.37%,68.75%and 42.86%of X-ray(P<0.05).The detection rate of multi-slice spiral CT for embolism in different arterial branches was 100.00%,which was higher than 85.96%of X-ray(P<0.05).Conclusion Multi-slice spiral CT can accurately judge acute pulmonary embolism,which is more accurate than X-ray,and the overall prediction of diagnostic efficiency is also very ideal,which provides a strong reference for the clinical formulation of detailed diagnosis and treatment plan,and is worthy of clinical promotion.
万方数据
维普
