Fig. 3From: Frontal tangential coronal view two-dimensional ultrasonography in assessment of fetal face [mouth and nose] in comparison with four-dimensional ultrasonographyDecreased amniotic fluid effect; 24Â weeks gestational age fetus shows that the nose [arrow head] and lips [arrow] could be seen in the 2D image, and no details could be depicted from the 4D imagesBack to article page