730 four-dimensional color Doppler ultrasound equipment is particularly sensitive in obstetric malformation screening, such as using speckle noise suppression technology (SRI) to display fetal lung, liver and intestine; ge
730 four-dimensional color Doppler ultrasound equipment shows fetal umbilical artery and placental blood flow; The application of high resolution magnification (HD-Zoom) and speckle noise suppression (SRI) to display the transparent layer behind the fetal neck and its measurement is incomparable with previous ultrasonic diagnostic instruments.