Results 3D PDU showed the fetal cardiovascular connections, including inferior vena cava to right atrium, umbilical vein to inferior vena cave, arches, pulmonary veins to left atrium.

• 结果54例均可以在多切面显示胎儿心血管连接及其比邻关系,包括下腔静脉-右房连接,脐静脉-下腔静脉连接,动脉弓,肺静脉-左房连接。