Best time for 3D B-ultrasound

The first examination a married woman needs to go to the hospital for after she becomes pregnant is to confirm that the fertilized egg has landed inside the uterus. If the examination shows that it is an ectopic pregnancy, the pregnancy needs to be terminated as soon as possible. Pregnant women have to undergo many examinations during pregnancy, some of which are to check their own health, and some are to check the development of the fetus. Three-dimensional B-ultrasound is one of them. The best time for 3D B-ultrasound_When is the best time for 3D color ultrasound?

Generally, the best time to do three-dimensional color ultrasound is at 24 weeks, and it can be done after 24 weeks. Color Doppler ultrasound can be used to check whether the fetus has any malformations, especially heart conditions. Three-dimensional ultrasound can be used to check the facial condition of the fetus: whether there is cleft lip, cleft cheek, cleft palate, etc. Three-dimensional color ultrasound is a type of color ultrasound, and three-dimensional color ultrasound is a three-dimensional dynamic display.

The main advantage of color ultrasound in obstetrics and gynecology is the differentiation of benign and malignant tumors and umbilical cord diseases, fetal congenital heart disease and placental function. It can clearly display the organs of the fetus, understand the growth and development of the fetus, and observe whether the head, limbs and the gross structure of the organs are deformed, especially cleft lip of the upper lip, which is commonly known as cleft lip, which can be detected at this time. There is also the continuity of the spine, the condition of the internal organs, and so on. The most important thing is that you can see the baby's development, including the baby's biparietal diameter, head circumference, abdominal circumference, femur length, etc.

The four stages of 3D color ultrasound in obstetric examination:

1. Early pregnancy: It can show the complete gestational sac and the embryo that is beginning to take human form.

2. Mid-term (24-32 weeks): It can clearly display the various organs of the fetus and understand the growth and development of the fetus. Observe whether there are any deformities in the gross structure of the head, limbs and organs. Because the fetus is fully developed and the amount of amniotic fluid increases at this stage, three-dimensional imaging is more effective under liquid surrounding conditions, and can display most tissue and organ structures and the entire fetal development status. The fetus at this stage has a plump face and clear facial features. This is the best period for diagnosis and the imaging success rate is high.

3. Late pregnancy: It can accurately determine the fetal position, check the maturity of the placenta, whether the umbilical cord is wrapped around the neck, measure the umbilical artery hemodynamic change index (CDFI, S/D), and evaluate whether the fetus is suffering from intrauterine hypoxia.

4. Post-delivery examination: observe whether the placenta is retained and the condition of uterine involution. Therefore, pregnant women should undergo necessary perinatal examinations in these four specific stages under the guidance of a doctor to provide a reliable basis for treatment.