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目的:研究多层螺旋CT血管造影联合患者血清D-二聚体水平诊断肺栓塞(PE)的临床价值。方法:选择疑似PE的患者250例作为研究组进行多层螺旋CT血管造影以及血清D-二聚体的分析,评价多层螺旋CT血管造影、血清D-二聚体水平分析及多层螺旋CT血管造影联合血清D-二聚体水平对PE的临床诊断价值。结果:在250例疑似PE的患者中有170例被确诊为PE,其余80例被排除。多层螺旋CT血管造影对130例疑似PE做出确定性诊断,另外40例为非确定性诊断。血清D-二聚体诊断PE的灵敏度为71.76%,特异性为31.13%,假阳性率为30.68%,假阴性率为64.86%。结论:当多层螺旋CT血管造影的诊断为不能确诊时,患者血清D-二聚体水平可以作为排除PE的依据,多层螺旋CT血管造影联合患者血清D-二聚体水平诊断PE更具有特异性。
Objective: To study the clinical value of multi-slice spiral CT angiography combined with serum D-dimer level in the diagnosis of pulmonary embolism (PE). Methods: Two hundred and fifty patients with suspected PE were selected as the study group for multi-slice spiral CT angiography and serum D-dimer. The multi-slice spiral CT angiography, serum D-dimer level and multi-slice spiral CT Clinical value of angiography combined with serum D-dimer in the diagnosis of PE. Results: Of the 250 patients with suspected PE, 170 were diagnosed with PE and the remaining 80 were excluded. Multi-slice spiral CT angiography of 130 cases of suspected PE to make a definitive diagnosis, the other 40 cases for the non-definitive diagnosis. Serum D-dimer diagnostic sensitivity of 71.76% PE, specificity was 31.13%, false positive rate was 30.68%, false negative rate was 64.86%. Conclusion: When the diagnosis of multi-slice spiral CT angiography can not be diagnosed, serum D-dimer levels can be used as the basis for the exclusion of PE, multi-slice spiral CT angiography combined with serum D-dimer levels in patients with PE diagnosis more Specificity.