A 2D ultrasound visualizes the baby in layers, or looks through everything, and a 3D ultrasound only looks at the surface of the baby from multiple angles. This technology allows you to see images of the baby's face in detail and in color. A 3D/4D ultrasound uses the same power levels of a traditional 2D ultrasound and the FDA has set standards for its proper use.
While 3D/4D ultrasounds are not medically necessary, however studies have shown that this experience has had a profoundly positive impact on parents and significantly benefited the pregnancy. When mothers are able to see a realistic view of their baby in the womb, the pregnancy becomes more real to them and often aides the mothers in taking better care of themselves. Fathers, siblings, and extended family members experience a bonding through viewing a 3D ultrasound, helping them to produce a closeness that is very important during this time.
A 3D ultrasound can be obtained at any time during the pregnancy. A good time to see the baby as a whole would be as early as 15 weeks. After 34 weeks, the baby begins to run out of room and may be facing the mother's spine in preparation for birth. Earlier ultrasounds allow you to see more complete images of the baby while later ultrasounds show better facial features as the baby's face fills out. It is important to remember that all images are dependent on the baby's position, movement, size, and the amount of surrounding amniotic fluid. It is important for the mother to stay hydrated throughout the pregnancy. Extra fluid intake as early as a few days prior to your session is known to help with the clarity of the images.