How is 4D Ultrasound Different from 2D and 3D Ultrasound?
While 2D ultrasound uses sound waves to create a flat image of the fetus, 3D ultrasound compiles multiple 2D images to generate a three-dimensional view. 3D ultrasound provides still images, whereas 4D ultrasound adds the element of time, creating a live video effect that shows the fetus in motion. This can be particularly useful for observing fetal activities like yawning, stretching, and even facial expressions.
