Sonographers can perform 2D, 3D or 4D ultrasounds.
After having a 2D ultrasound as part of routine prenatal care, many expectant parents seek out elective 3D and 4D ultrasounds because they want to see a more detailed view of their baby. 4D ultrasounds have become the most popular because they add the element of time in a live-action view.
2D Ultrasounds
2D ultrasounds are primarily done between 18 and 20 weeks of gestation and are considered diagnostic because they are used to check for abnormalities in the baby's pre-natal development. These images are viewed in layers and are black and white.
3D Ultrasounds
Ultrasounds that show a detailed surface view of your baby are known as 3D imaging. 3D ultrasounds use advanced technology to produce color pictures and videos that allow you to see a true picture of what your baby looks like. 3D ultrasounds can also be used to diagnose certain conditions like a cleft-lip that 2D ultrasounds may not be able to pick up.
4D Ultrasounds
4D ultrasounds have become quite popular in recent years as more state-of-art equipment is available. 4D imaging provides the same up-close pictures as 3D imaging, but adds the element of motion in live-streaming views of your baby. With a 4D ultrasound you can see what your baby is doing as it happens, almost like watching a video monitor. Most 4D ultrasounds come with a DVD of the procedure and include background music of your choice. 4D ultrasounds produce the best results between 24 and 34 weeks gestation, but can be done as early as 18 weeks into the pregnancy.
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