64层CT血管成像与肺通气灌注显像诊断肺栓塞的对比研究

摘要

Objective:There are two non-invasive imaging comparison in clinical diagnosis of pulmonary embolism provide a more meaningful guidance imaging method to further improve the diagnosis of PE. Methods: From March 2006 to November 2009, clinical suspected pulmonary embolism, and in the anticoagulation and / or thrombolytic therapy in the former also accept a 64-slice spiral CT pulmonary angiography and lung ventilation / perfusion imaging and medical records of 180 patients with complete data as the study. Each patient's of 64-slice spiral CT pulmonary angiography and lung ventiiation / perfusion imaging of the image based an the same diagnostic criteria to conduct an independent analysis. Results : CTPA and V / Q imaging in diagnosis of PE, the sensitivity, specificity, consistent with the rate of positive likelihood ratio,negative likelihood ratio were 90. 5 ％ vs 83. 8％ , 91, 5 ％ vs 85％, 91. 1％ vs 84. 4％ , CTPA and V / Q imaging in diagnosis of PEs K values were 0. 680, 0. 648. Conclusion: Cases of suspected pulmonary embolism, both can be excluded as a diagnosis of suspected cases of pulmonary embolism screening method.%目的:通过比较两种无创影像检查为临床诊断肺栓塞提供有指导意义检查方法.方法:64层螺旋CT肺动脉成像和肺通气/灌注显像图像依据相同的诊断标准进行独立的分析.V/Q显像和多层螺旋CT肺动脉成像两种检查方法的判定结果进行相关分析,两者准确性、符合性及不确定性诊断比率的差异采用X2检验进行比较.结果:180例患者中CTPA和V/Q显像诊断PE的敏感性、特异性、符合率分别为90.5%对83.8%,91.5%对85.0%,91.1%对84.4%,CTPA和V/Q显像诊断PE的K值分别为0.680,0.648.结论:疑诊肺栓塞病例中两者皆可作为确诊及排除疑诊肺栓塞病例的检查方法.