The Second Best Time for Four Dimensions

Four-dimensional color Doppler ultrasound is a multi-dimensional imaging technology through ultrasound to detect fetal growth and development, each organ system has no abnormality of a large row of abnormal examination. General four-dimensional color Doppler examination time is between 20 weeks and 26 weeks, the best four-dimensional color Doppler examination time is between 22 and 24 weeks. If the gestational age is too small, before 20 weeks of fetal organ system has not been fully developed, there are some exploration is not clear. If more than 26 weeks to do four-dimensional color ultrasound, then the fetal activity is limited, some organs will be blocked by the body will not be clear, it is not easy to fully explore the development of various organ structures. Therefore, four-dimensional color ultrasound time is required, the best time is between 22 and 24 weeks.