Objective To compare and assess the value of two-dimensional (2D) echocardiography and three-dimensional (3D) ultrasound examination with spatiotemporal image correlation (STIC) in the prenatal characterization of anomalous pulmonary venous connection (APVC). Methods The study comprised a group of 10 cases suspicious of APVC by prenatal 2D ultrasound examination during Jan. 2008 to April 2011. According to the autopsy and postnatal operation, the visualization of the pulmonary venous (PV) connection and the drainage detected by 2D echocardiography and 3D ultrasound with STIC was compared. Results Five cases of TAPVC (anomalous drainage was cardiac to the coronary sinus in three cases, supracardiac to the superior vena cava in two cases) , one of PAPVC (infracardiac to the portal vein of two PVs), and four cases without any APVC were confirmed pathologically. Among them, four cases were isolated TAPVC, one TAPVC and one PAPVC had associated cardiac anomalies. All PVs connection were accurately visualized in two cases, partially visualized in four cases and failed to be visualized in four cases with 2D ul-trasonography, whereas 4D ultrasound imaging with STIC visualized the pulmonary vein connection clearly in nine and partially in one case, respectively (P = 0. 006). Conclusions 3D echocardiography with STIC may be able to accurately identify the anatomical features of PV drainage, thus supplying additional diagnostic information of APVC over that provided by 2D ultrasonography.%目的 比较和评价二维与三维超声时间-空间复合成像(STIC)技术对胎儿肺静脉异位引流(APVC)的诊断价值.方法 对产前二维超声检查疑诊胎儿肺静脉异位引流的病例共10例,对照引产后病理或出生后手术结果,比较产前二维超声、三维STIC超声显示肺静脉连接的准确性.结果 经病理及手术证实5例为TAPVC(3例心内静脉窦回流,2例上腔静脉回流),1例为PAPVC(部分肝内门静脉回流),4例无APVC.其中4例为单纯性TAPVC,1例TAPVC和1例PAPVC合并心内异常.产前二维超声正确显示肺静脉连接2例,部分显示4例,未能显示4例;三维STIC正确显示肺静脉连接9例,1例部分显示.两者显示肺静脉连接准确性的差异有统计学意义(P=0.006).结论 三维STIC技术可准确显示异常肺静脉回流途径,获得比二维超声更多、更准确的肺静脉异位连接的信息,为APVC的产前诊断提供了辅助手段.
展开▼
