You don't need to hold your urine or have an empty stomach to do four-dimensional color Doppler ultrasound. Pregnant women refer to the need to go to the hospital for examination within the specified time. Before the four-dimensional color ultrasound examination, it is best for pregnant women to wear their shirts and trousers 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 and spine. If the fetus is found to have abnormal performance during the examination, the examination time may be relatively long.
Extended data:
The role of four-dimensional color Doppler ultrasound examination;
1, facial deformity
Four-dimensional color Doppler ultrasound examination focuses on observing whether the fetal eyes and orbit are equal and round, as well as the measurement of eye distance and whether the arc curves of hard palate, soft palate and upper lip are continuously interrupted. Next, screen the baby's neck to see if there is any abnormal mass.
2. Nervous system
Anencephaly, hydrocephalus, microcephaly, spina bifida and meningocele. In the examination of fetal sieve malformation by four-dimensional color Doppler ultrasound, the first thing to be screened is skull malformation. During the examination, the examiner will carefully observe the fetal head shape, brain tissue (thalamus, cerebellum, cerebellar vermis, posterior fossa and lateral ventricle) and the distance between the midline and the skull plates on both sides to screen anencephaly, encephalocele and hydrocephalus.
People's Daily Online-Functions and Precautions of Four-dimensional Color Doppler Ultrasound Examination