Ordinary Color Doppler Ultrasound And Three-dimensional Color Doppler Ultrasound, Four-dimensional Color Doppler Ultrasound

The images of 3D color Doppler ultrasound and 4D color Doppler ultrasound are generated later. It does not mean that the observed image is 3D or 4D. Instead, ordinary color Doppler ultrasound is still used to observe, and then the observed plane image is converted into a 3D, 3D image through the conversion software in the instrument. The four-dimensional three-dimensional image allows people who do not understand B-ultrasound images to see the appearance of the fetus.