A 4D ultrasound is usually around$360, and nowadays many pregnant women are willing to have a more comprehensive checkup between 22 and 26 weeks of pregnancy, which is a 4D ultrasound. The four-dimensional color ultrasound is more three-dimensional than the three-dimensional color ultrasound, see more clearly, so the price is also slightly higher. Four-dimensional color ultrasound is called four-dimensional color ultrasound diagnostic instrument, is the world’s most advanced color ultrasound equipment. Four-dimensional color ultrasound has many functions, it can surface imaging, such as fetal cleft lip and palate, limb developmental deformities, meningeal bulge, spina bifida, abdominal wall bifida and other congenital anomalies, can be more clearly found out, so now a lot of pregnant mothers will choose this examination. There is also a more advantageous advantage that it can observe the three-dimensional motion image of the fetus like a camera, so that the fetus in the uterus can be more comprehensive, real and clear display.