Big row is four-dimensional?

Four-dimensional color Doppler ultrasound belongs to a kind of big row abnormal examination, during pregnancy, generally in pregnancy 24 weeks to 26 weeks or so, it is recommended to do four-dimensional color Doppler ultrasound. Can check the specific development of fetal organs, such as heart, such as brain development, there is no brain hydrocephalus, or there is no congenital heart disease, after four-dimensional color Doppler ultrasound can be checked out. During pregnancy need to do nt, do Down screening, do four-dimensional color Doppler ultrasound, this belongs to row abnormal examination. If there is a problem, further examination can be carried out, such as non-invasive DNA, or amniotic fluid puncture, can be judged out. If there is a problem, induction surgery can be done, that is to say, early termination of pregnancy is needed.