CT血管成像与经胸超声心动图诊断部分型肺静脉异位引流

Diagnosis of partial pulmonary venous drainage by CT angiography and transthoracic echocardiography

目的 对比分析CT血管成像（CTA）与经胸超声心动图（TTE）对部分型肺静脉异位引流（PAPVC）的诊断价值.方法 回顾性分析21例PAPVC患者的CTA及TTE特点,并将两者检出情况与手术结果进行对比.结果 单纯性PAPVC 2例,CTA及TTE均检出.复杂性PAPVC 19例,CTA误诊1例,TTE误诊6例.CTA与TTE对PAPVC检出率分别为95.2％（20/21）和71.4％（15/21）,两者比较差异具有统计学意义（P＜0.05）.结论 TTE的优势在于心内细致结构、尤其是瓣膜病变的检出,可作为PAPVC首选筛查方法.CTA的优势在于心外大血管畸形的检出,可作为TTE的有效补充手段.联合应用两种检查方法,才能有效提高诊断率.

Objective To compared and analyze the diagnostic value of CTA and TTE for partial pulmonary venous heterotopic drainage （PAPVC）. Methods The characteristics of CTA and TTE in 21 patients with PAPVC were analyzed retrospectively, and the results were compared with the results of the operation. Results 2 cases of simple PAPVC were found, both CTA and TTE were detected. 19 cases were complicated PAPVC, 1 cases were misdiagnosed by CTA and 6 cases were misdiagnosed by TTE. The detection rates of CTA and TTE for PAPVC were 95.2%（20/21 ） and 71.4%（ 15/21 ） respectively, and the differences were statistically significant（P〈 0.05 ）. Conclusion The advantage of TTE lies in the detection of cardiac detailed structure, especially valve disease, which can be used as the first screening method for PAPVC. The advantage of CTA lies in the detection of large vascular malformation outside the heart, which can be used as an effective supplement for TTE. The combined application of two kinds of inspection methods can effectively improve the diagnostic rate.