확장된 목투명대(Nuchal Translucency) 정밀 패널
확장된 목투명대(NT)는 두꺼워진 초음파투과 부위로 시각화되는 목덜미 부위에 비정상적인 체액 축적으로 정의됩니다. NT는 태아가 임신 11주에서 14주 사이에 측정하여, 염색체 이수성 위험도를 계산합니다.

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