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目的:探究分析对肺动脉栓塞(PE)患者采用一日法肺通气/灌注(V/Q)断层显像与CT肺动脉造影(CTPA)进行诊断的效果,并分析其诊断效能。方法:选取我院2011年4月~2013年4月收治的77例肺动脉栓塞患者作为临床研究对象,所有患者均给予一日法肺V/Q平面显像和断层显像,并给予常规ATPA检查,根据检查结果对其诊断效能进行分析,并分析对比不确定诊断率的差异。结果:肺V/Q断层显像结果:共确诊52例PE患者(67.5%),排除23例PE患者(29.9%),不确定2例PE(2.6%),准确率为87.2%,敏感度为82.4%,特异度为91.5%;肺V/Q平面显像结果:共确诊56例PE患者(72.7%),排除12例PE患者(15.6%),不确定9例PE(11.7%),准确率为80.3%,敏感度为81.3%,特异度为92.6%;CTPA结果:共确诊,70例PE患者(90.9%),排除4例PE患者(5.2%),不确定3例PE(3.9%),准确率为89.6%,敏感度为86.2%,特异度为90.2%。结论:肺V/Q断层显像能够有效降低诊断不确定率,结果优于CTPA与平面V/Q显像,可将其作为诊断PE的主要检查方法。
Objective: To investigate the effect of one-way pulmonary ventilation / perfusion (V / Q) imaging and CT pulmonary angiography (CTPA) in patients with pulmonary artery embolism (PE) to analyze and analyze the diagnostic efficacy. Methods: Totally 77 patients with pulmonary embolism who were treated in our hospital from April 2011 to April 2013 were enrolled in this study. All patients were given one-day lung V / Q planar imaging and tomography and routine ATPA , According to the test results of its diagnostic efficacy analysis, and analysis of the contrast of the diagnostic accuracy of the difference. Results: The results of V / Q tomography in 52 patients with PE were confirmed (67.5%), 23 patients (29.9%) were excluded and 2 patients (2.6%) were unsure, the accuracy rate was 87.2%. The sensitivity The results of lung V / Q imaging showed that a total of 56 PE patients (72.7%) were diagnosed, 12 PE patients (15.6%) were excluded, 9 PE (11.7%) were undetermined, The accuracy was 80.3%, the sensitivity was 81.3% and the specificity was 92.6%. CTPA results: A total of 70 PE patients (90.9%), 4 PE patients (5.2%), 3 PE %). The accuracy was 89.6%, the sensitivity was 86.2% and the specificity was 90.2%. Conclusion: Pulmonary V / Q tomography can effectively reduce the diagnostic uncertainty, the result is better than CTPA and planar V / Q imaging, which can be used as the main method of diagnosis of PE.