Can you take a four-dimensional ultrasound in six months?

First update a concept, four-dimensional ultrasound is actually called 4D ultrasound technology, that is, real-time three-dimensional imaging, on the basis of three-dimensional space imaging plus time variables, real-time dynamic observation of the fetus in the maternal situation. Prenatal systematic ultrasound screening refers to pregnant women in 23-28 weeks through color Doppler ultrasound to understand fetal growth and development, fetal spine, face, limbs and organs including the heart structure observation, eliminate most abnormalities, reduce birth defects, that is, we often say large row deformity, if in the screening process found that the fetus has structural abnormalities, need three-dimensional, four-dimensional imaging technology to supplement. Therefore, not every pregnant woman needs routine four-dimensional color Doppler ultrasound, but every pregnant woman should routinely undergo systematic ultrasound examination at 23-28 weeks, that is, large row abnormality examination.