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目的:探讨多层螺旋CT血管造影(multislice CT angiography,MSCTA)及图像后处理在肺静脉异位引流诊断中的临床应用价值。方法:对2007年6月～2009年6月采用MSCTA诊断的14例先天性肺静脉异位引流病例进行回顾性分析。所有病例均行MSCTA,随后在工作站进行分析,用最大密度投影(maximum intensity projection,MIP)、多平面重组(multiplanar reconstruction,MPR)和容积再现(volume rendering,VR)等方法,观察异位引流肺静脉的位置、形态及所流入的心腔与其合并的心脏畸形。结果:14例中完全型肺静脉异位引流8例(其中心上型7例,混合型1例);部分型肺静脉异位引流6例(其中心上型2例,心内型3例,心下型1例)。结论:MSCTA在肺静脉异位引流临床诊断中具有重要作用,是肺静脉异位引流有效的、无创的检查方法。
Objective: To investigate the clinical value of multislice CT angiography (MSCTA) and image postprocessing in the diagnosis of pulmonary venous heterotopic drainage. Methods: A retrospective analysis of 14 patients with congenital pulmonary venous drainage treated with MSCTA from June 2007 to June 2009 was performed. MSCTA was performed in all cases, and then analyzed at the workstation. The maximum intensity projection (MIP), multiplanar reconstruction (MPR) and volume rendering (VR) The location, shape and inflow of the heart chamber with its combined cardiac malformations. Results: Epidural drainage of complete pulmonary veins in 8 cases (7 cases of superior type, 1 case of mixed type), 6 cases of partial anomalous pulmonary venous drainage (2 cases of superior type, 3 cases of cardiac type, 1 under the model). Conclusion: MSCTA plays an important role in the clinical diagnosis of pulmonary venous drainage. It is an effective and noninvasive method for the diagnosis of pulmonary venous drainage.