64层螺旋CT对肺静脉异位引流的诊断价值

Value of 64-slice Spiral CT in the Diagnosis of Patients with Anomalous Pulmonary Venous Drainage

目的探讨肺静脉异位引流的64层螺旋CT及后处理图像征象,以提高对该病的诊断价值。资料与方法回顾性分析16例先天性肺静脉异位引流患者的64层螺旋CT图像在工作站进行多平面重组(MPR)、最大密度投影(MIP)和容积再现(VR)等后处理资料,观察异位引流肺静脉的位置、形态、其异位连接(心腔或静脉)以及合并的心脏畸形,并对8例行手术治疗病例的CT诊断、超声心动图检查与手术结果进行比较。结果 64层螺旋CT诊断完全性肺静脉异位引流8例,其中心上型5例,心内型3例;部分性肺静脉异位引流8例,其中心上型4例,心内型4例。8例手术病例CT诊断与手术结果完全相符。结论 64层螺旋CT在诊断肺静脉异位引流中具有重要作用,是肺静脉异位引流的有效、无创检查方法。

Purpose To investigate the features of 64-slice spiral CT and post- processed images of anomalous pulmonary venous drainage （APVD）. Materials and Methods The imaging data of 16 patients diagnosed as APVD were analyzed retrospectively. 64-slice spiral CT images were reconstructed at the workstation, including multiplanar reconstruction （MPR）, maximum intensity projection （MIP）, and volume rendering （VR）. The position, appearance of abnormal pulmonary veins, and the chambers （or veins） which they connected were observed. The CT findings of 8 cases who received surgery were analyzed and compared with transthoracic echocardiography （TTE） and operation. Results Of the cases received 64-slice spiral CT, complete anomalous pulmonary venous drainage （TAPVD） was diagnosed in 8, including supracardia type （ n=5）, cardiac type （n=3）. Partial anomalous pulmonary venous drainage （PAPVD） was diagnosed in 8, including supracardia type （ n=4 ） , cardiac type （n=4）. CT findings of 8 patients matched their surgical results. Conclusion 64-slice spiral CT is an effective non-invasive examination in diagnosing APVD, as it plays an important role in the diagnosis of APVD.