After each ultrasound, many mothers-to-be have a lot of questions and confusion: Can I deliver my baby naturally with a large biparietal diameter? What should I do if my baby has short legs? Is the placenta too old to take calcium supplements?
Ultrasound is the eye of the obstetrician, and nowadays the resolution of ultrasound machines is getting higher and higher, so more information about the fetus can be obtained, and more small changes that were not seen before can be found, but at the same time, it also brings the trouble of interpretation. If you don’t write down these small changes, you don’t feel safe, but if you do, the obstetrician doesn’t know how to explain them to the mother-to-be, because the clinical significance of many small changes is not very clear. So we all lamented that we wouldn’t be doctors if we knew too much, but we didn’t know so many details in the past, but we didn’t suffer so much now.
How many ultrasounds do I need to do during pregnancy?
Normally you need to do 5 ultrasound examinations
1.Early pregnancy test (ultrasound dating) at 6-7 weeks: to confirm the pregnancy week, to see if the pregnancy is intrauterine or ectopic, single or twin (to confirm chorionicity) or multiple, and whether the embryo is dead or alive.
2.NT scan at 11-14 weeks: mainly to check NT and draw blood for early pregnancy Down’s syndrome screening.
3.Systematic ultrasound examination (structure scan) at 20-24 weeks: mainly screening for large malformations of the fetus (more on this in another article).
4.The examination around 32 weeks (growth scan): mainly to monitor the fetal growth and development
5.Checkup around 37 weeks: mainly to estimate the weight of the fetus and to confirm the mode of delivery (not all hospitals do this).
Should I do 3D color ultrasound and 4D color ultrasound?
Normally, 3D ultrasound and 4D ultrasound are not necessary. In the hands of an experienced sonographer, 2D ultrasound is sufficient for screening of large malformations. It is only in some special cases, such as when a more visual inspection of the fetus’ facial abnormalities is needed, that 3D ultrasound is required. The 4-D ultrasound is a gimmick, but it adds a time axis to the 3-D imaging, so that you can see the dynamic 3-D imaging in real time, which is only used in a few cases.
Frequently asked questions about obstetric ultrasound reports.
1. Does a large biparietal diameter mean that a vaginal delivery is not possible and a cesarean section is necessary?
He arranged that the baby’s cranial sutures are not closed and can overlap when the birth canal is squeezed (not for adults), so the biparietal diameter will be reduced and it will be easier to pass through the birth canal. The baby’s head shape changes from round to long during delivery, and then returns to round a few days after birth.
2. The short legs of babies are a cause for concern.
Oriental baby’s legs are on the short side, ultrasound and obstetricians casually say that the baby’s legs are a little short is meaningless, if it is a real short limbs, the ultrasonographer is to write down in black and white, is to reach below the standard value of 2.5 th%. I have seen my real friends know that my legs are not long, fortunately my mother pregnant with me when the ultrasound is very rare, or else meet irresponsible ultrasound doctor and obstetrician will say with my mother, this child has short legs, can not want, abort it, then there is no Duan Tao to write science for you to see.
3, the placenta aging is not to supplement calcium?
The placenta grading is actually not related to the prognosis of the perinatal baby, and it is also not related to calcium supplementation, in fact, it is not necessary to write it out, even if the ultrasonographer wrote it out, you simply do not need to pay attention to it.
4. Why is the amniotic fluid volume written on the report sometimes and the amniotic fluid index written on the report sometimes?
If the amount of amniotic fluid is normal, only the depth of one amniotic fluid pool is written, if the amniotic fluid is too much or too little, the amniotic fluid index of the four amniotic fluid pools combined is written.