3D ultrasounds use sound waves coming from different angles returning that echo through a sophisticated computer program to create a reconstructed three dimensional image almost like a photograph, thus allowing to see more than just a skeletal image. 4D takes the image and turns on the dimension of time in certain motions to see the object come to life. This can be useful in detecting birth defects. It should be noted that using either 3D or 4D ultrasounds should be only handled by trained personnel as the FDA advise, so as to not receive inaccurate or harmful information. To not be misled in this way, we offer the best ultrasounds that have both of these features as well as your standard 2D, and for a very reasonable price.