3D and 4D Ultrasound

What is difference between 3D and 4D ultrasound?

3D imaging allows for the visualization of fetal structures and the internal anatomy as static 3D images. Comparatively, 4D ultrasounds allow for a live-streaming video of the images, showing the motion of the fetal heart wall or valves, as well as the current blood that is flowing through various vessels.

What is the meaning of 3D 4D ultrasound?

Like regular ultrasounds, 3D and 4D ultrasounds use sound waves to create an image of your baby in your womb. What's different is that 3D ultrasounds create a three-dimensional image of your baby, while 4D ultrasounds create a live video effect, like a movie -- you can watch your baby smile or yawn.