颈褶
Conclusion The detection rate of trisomy 21 fetuses can be improved by mid trimester ultrasound finding of the increased nuchal fold thickness, especially in those cases with a maternal age less than 35 years and no major fetal abnormalities.
结论应用颈背部皮肤增厚这一超声指标可以提高产前21三体胎儿检出率,特别是母亲年龄小于35岁,且不合并严重畸形的病例,减少产前漏诊。
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