At the beginning of an ultrasound a special gel is rubbed over the
woman's abdomen and a wand that emits sound waves is rubbed across the
gel. The sound waves travel into the abdomen and bounce off the baby to
create an image for the doctor to analyze and the family to treasure. A
3D ultrasound is more detailed than a traditional ultrasound, allowing
everyone in the room to see the baby's facial expressions and get an
idea of what the baby's features will look like at birth.
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