64层螺旋CT血管成像对儿童肺静脉异位引流的诊断价值

64-slice CT angiography in the diagnosis of anomalous pulmonary venous drainage in children

目的:研究64层螺旋CT血管成像(MSCTA)在儿童肺静脉异位引流(APVD)中的应用价值。方法:回顾性分析18例APVD患者的MSCTA资料,常规行多平面重组(MPR)、薄层最大密度投影(MIP)和容积再现(VR)等后处理,并与经胸超声心动图(TE)进行对照研究。结果:所有患儿MSCTA均显示肺静脉回流异常,17例完整显示引流静脉行径,17例患儿引流位置诊断明确,显示率均高于TE。重组图像能直观明确的显示引流静脉的整体形态。结论:MSCTA结合后处理技术对APVD诊断价值高于TE,能全面的评价患儿状况并指导治疗。

Objective：To study the application value of 64-slice spiral CT angiography（MSCTA） in the diagnosis of anomalous pulmonary venous drainage（APVD）.Methods：The MSCTA materials with post-processed techniques including multiplanar reformation（MPR）,thin slice maximum intensity projection（MIP） and volume rendering（VR） of 18 patients were retrospectively analyzed,and correlated with transthoracic echocardiography（TE） findings.Results：The anomalous pulmonary venous drainage in all 18 patients（100%） were showed on MSCTA,the complete course of the drainage vein in 17 patients（99.4%） were revealed,the location of drainage site in 17 patient（99.4%） were accurately diagnosed.The diagnostic sensitivity of MDCTA was higher than that of TE.The whole course of the drainage vessels could be clearly displayed on the reconstructed/reformed images.Conclusion：MSCTA in combination with post-processed techniques is superior to TE,which provided comprehensive information of the patients and is significant for treatment guidance.