http://www.stoneoakwomenscenter.com/ - What makes 3D ultrasounds in San Antonio TX different from 2D? When you visit clinics that specialize in womens health San Antonio has available, this is one of the things a pregnant woman will likely have available to her. San Antonio 3D ultrasound is more detailed than traditional 2D ultrasound, and the baby's facial expressions can be seen more clearly. 3D ultrasounds in San Antonio TX can show you the baby's features and give you a better idea of what he or she will look like at birth.