Four-dimensional refers to four-dimensional ultrasound, four-dimensional ultrasound is usually better to do within 22 to 26 weeks of pregnancy.
Four-dimensional ultrasound can observe the growth and development of the fetus in the uterus in multiple directions and angles, four-dimensional ultrasound has the role of malformation, can be used as an early diagnosis of fetal congenital malformations and congenital heart disease to provide an accurate scientific basis. When doing four-dimensional ultrasound need to pay attention to the pregnancy week, it is recommended that pregnant women do four-dimensional ultrasound examination within 22 to 26 weeks of pregnancy.
Within 22 to 26 weeks, the fetus has already developed and matured, the amniotic fluid volume is also more, and the space and activity of the fetus are more suitable for the examination of malformation, and the doctor can clearly see every organ and face of the fetus.
When doing 4D ultrasound examination, it is recommended to choose local public hospitals, the doctor’s clinical experience will be more abundant, can avoid examination errors to the greatest extent.