For pregnant expectant mothers, when the fetus is about four months old, they need to do four-dimensional color Doppler ultrasound. What problems should we pay attention to? Do four-dimensional color Doppler ultrasound need an empty stomach? These questions are answered one by one!
Four dimensional ultrasound precautions 1, do four-dimensional ultrasound do not need to hold urine, do not need an empty stomach. Pregnant women refer to those who need to go to the hospital for examination within the prescribed time.
2. Before the four-dimensional ultrasound examination, pregnant women had better wear their own tops and pants separately. In the examination of four-dimensional color Doppler ultrasound, doctors mainly check the current facial development of the fetus, as well as whether there are developmental defects in the heart, brain, spine, etc. through the examination equipment. If the fetus is found to have abnormal performance in the course of examination, the examination time may be relatively long.
3. In fetal examination, due to the limitations of ultrasound technology, all fetal malformations can not be detected, that is, the accuracy rate of ultrasound diagnosis can not reach 100%.
4. Soft tissues such as ears, gender, genitals and jaw arch are not included in the ultrasound examination.
5. The number of phalanges and phalanges is not included in the fetal limb examination. The fetal four chamber heart examination can only exclude 50% - 60% of congenital heart disease.