先天性心脏病(先心病)是一类常见的先天性疾病。通常认为,人群发病率为0·8%,而在我国围生期发生率呈上升趋势[1]。随着超声设备和技术的不断更新和进步,以及心血管胚胎学等相关基础研究的不断深入和细化,使得对先心病的自然病史的认识扩展到了胎儿阶段。因此,在胎儿期诊断先心 Congenital heart disease (CHD) is a common form of congenital disease. It is generally assumed that the incidence of the population is 0.8%, while the incidence in the perinatal period is on the rise [1]. With the unceasing renewal and progress of ultrasound equipment and technology, and the continuous deepening and refinement of related basic research such as cardiovascular embryology, the cognition of the natural history of congenital heart disease has been extended to the fetal stage. Therefore, in the fetal diagnosis of heart