In 11-13 + 6 weeks, fetal nuchal translucency (nt) thickness has become an important index of down's syndrome of early pregnancy screening.
孕11 - 13 + 6周胎儿颈项透明层(NT)厚度已经成为早孕期筛查唐氏综合征的重要指标。
Objective To investigate the clinical value of fetal echocardiography in prenatal screening of congenital heart diseases.
目的探讨超声心动图在产前筛查胎儿先天性心脏病的临床价值。
Objective Screening for fetal Down syndrome clinical significance.
目的探讨筛查胎儿唐氏综合征的临床意义。
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