螺旋CT肺血管造影对老年人肺栓塞的临床诊断价值  

Spiral CT Pulmonary Angiography in Diagnosis of Pulmonary Embolism in Elderly Patients

作　　者：乔国庆[1] 马红霞[2] 欧陕兴[1] 郭佑民[2] 彭光明[1] 钱民[1] 郭元星[1] 刘海凌[1] 柏瑞[1] 李小荣[1] 罗道首[1] 樊超[1] 

机构地区：[1]广州军区广州总医院放射科,广东广州510005 [2]西安交通大学医学院第一附属医院影像科

出　　处：《实用放射学杂志》2011年第7期1013-1016,共4页Journal of Practical Radiology

摘　　要：目的 评价螺旋CT肺血管造影（CTPA）对老年人肺栓塞的诊断价值.方法 对64例临床疑诊为肺栓塞的老年患者行螺旋CT 血管造影及二维或三维重建.CTPA 扫描参数取层厚2.0 mm,螺距1.5,用SmartPrep 软件对比剂智能触发技术获得最佳延迟扫描时间.结果 64例临床疑诊肺栓塞中,40例确诊为肺栓塞,共累及肺动脉850支.CTPA确诊36例,4例共5个亚段肺动脉的栓子漏诊.CTPA 诊断肺栓塞的特异性90.9%,敏感性90.5%,准确性90.6%,阳性预测值95.0%,阴性预测值83.3%.结论 螺旋CT血管造影在老年人肺栓塞的诊断中非常重要.Objective To evaluate the diagnostic value of spiral CT pulmonary angiography（CTPA）in elders with pulmonary embolism（PE）. Methods 64 cases with PE clinically suspected were examined with CTPA. The optimal delay time was acquired through SmartPrep software. Slice thickness was 2.0 mm and pitch was 1.5. Results 40 of 64 cases were confirmed with PE,850 branches were involved. 36/40 cases diagnosed accurately with PE and 4/40 cases with embolus at 5 sub-branches were misdiagnosed by CTPA. The specificity, sensitivity, accuracy, positive predictive value and negative predictive value in diagnosis of PE with CTPA were 90.9%, 90.5%, 90.6%, 95.0% and 83.3% ,respectively. Conclusion CTPA should be the modality of choice in diagnosis of PE in the elderly patients.

关 键 词：肺 肺栓塞 体层摄影术 X线计算机 血管造影 

分 类 号：R563.5[医药卫生—呼吸系统] R814.42[医药卫生—内科学]