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先天性心脏畸形(CHD)是最常见的先天性畸形,约占活产总数的80/万~100/万[1]。CHD种类繁多、病因复杂、难以预防,且常常预后不良。因此,CHD的产前诊断尤为重要。目前,胎儿心脏的超声检查技术日臻成熟,CHD的产前检出率能达90.0%以上。1胎儿心脏超声检查的最佳时间及影响因素孕中
Congenital heart disease (CHD) is the most common congenital malformations, accounting for the total number of live births 80 / million to 100 / 10,000 [1]. A wide range of CHDs, complex causes, difficult to prevent, and often poor prognosis. Therefore, prenatal diagnosis of CHD is particularly important. At present, the fetal heart ultrasound technology matures, CHD prenatal detection rate of 90.0% or more. 1 fetal ultrasound examination of the best time and influencing factors in pregnancy