Included in the analysis were 3D ultrasound scans of 2,604 ... having proportionately 2.7% to 4.2% less fat from 15 to 37 weeks. Previous studies of twin growth in the womb involved 2D ...

Ultrasounds performed for non-medical reasons, on the other hand, are typically not recommended. Health experts generally advise against keepsake three-dimensional (3D) and four-dimensional (4D ...