What are the differences between 3D color ultrasound and 4D color ultrasound?

Patient's question:

No

Doctor's answer:

Hello, the three-dimensional color ultrasound is mainly used as a diagnostic tool to observe whether the five internal organs and six bowels are deformed and to rule out structural abnormalities. Four-dimensional color ultrasound is mainly used to observe whether the nervous system is normal and whether the movement is coordinated.