螺旋CT增强扫描及肺动脉造影在肺动脉栓塞中的诊断价值

目的 评价螺旋CT增强扫描和肺动脉造影在肺动脉栓塞（PE）的诊断价值.方法 对11例同时行螺旋CT增强扫描和肺动脉造影、临床诊断PE的患者的影像学原始资料进行回顾性分析,逐支判断肺动脉的栓子情况.结果 11例患者共发现9支肺动脉主干栓塞及51支肺段动脉栓塞,其中CT增强诊断肺动脉主干栓塞敏感性和特异性均为100%,诊断肺段动脉栓塞敏感性66.7%、特异性91.9%;而肺动脉造影诊断肺动脉主干栓塞的敏感性88.9%、特异性100%,诊断肺段动脉栓塞的敏感性60.8%、特异性83.8%.结论 螺旋CT增强扫描对PE诊断有更高的敏感性和特异性,将成为首选的影像学检查方法.

Diagnostic value of pulmonary embolism by spiral CT angiography and pulmomary artery angiography (a report of 11 cases)

Objective To evaluate diagnostic value of pulmonary embolism(PE) by spiral CT angiography and pulmomary artery angiography.Methods To rivew the image data of 11 patients clinically diagnosed PE,who had undergone spiral CT angiography(CT) and pulmonary artery angiography(PAA). Results In all 11 cases,there were 9 mian pulmomary artery embolisms and 51 lobar pulmomary artery embolisms.Thereinto, by CT,the sensitivity and characteristicy, to detecting central PE were 100% both ,and to detecting branch PE the sensitivity was 66.7%,the characteristicy was 91.9%.by PAA, the sensitivity to detecting central PE was 88.9%, the characteristicy 100%, and to detecting branch PE the sensitivity 60.8%, the characteristicy 83.8%. Conclusions Spiral CT angiography is an accurate method for detecting main PE and lobar PE.