We use ultrasound to confirm your due date, check for obvious abnormalities, and check placental location. Ultrasound is also used to detect a number of possible birth defects such as Down Syndrome, a neural tube defect (Level II ultrasound is used for this) and others.
A 3D ultrasound scan is just what it sounds like – it’s a three-dimensional image of your baby. A 4D ultrasound scan shows a 3D image of your baby moving over time. The fourth dimension is time.