Ultrasound is an opportunity for a future mother to learn that everything is in order with her baby, he develops well, he does not lack oxygen, and also any congenital pathologies. That is why the results of ultrasound during pregnancy worry every woman in position.
Explanation of US pregnancy 12 weeks
At 12 weeks, the pregnant woman first comes to the ultrasound, if before that she had no problems with the threat of miscarriage and detachment of the fetal egg. At this time, the embryo is still very small, in length it is only about 4 cm, but there are indicators of ultrasound during pregnancy, which necessarily require evaluation. First of all, this is the thickness of the collar space (normally up to 2.5 mm) and the length of the nasal bone (normal to 4.2 mm). Variations in size may indicate a deviation in fetal development and require consultation of a geneticist and, possibly, additional tests. In addition, on ultrasound at 12 weeks, estimated coccygeal parietal size, it should vary in the range from 42 to 59 mm. It should be borne in mind that the norms of ultrasound in pregnancy change daily with the growth of the baby, so at 12 weeks and 1 day they will be somewhat different.
Also at this time, the heart rate of the fetus, the placenta condition, the length of the umbilical cord and the number of vessels in it, the absence of cervical dilatation, as well as the attachment of the placenta and other indicators are estimated. Decipher the ultrasound of the fetus and appoint, if necessary, treatment, your doctor can.
Data of ultrasound in pregnancy at 20 weeks
At 20 weeks, a second screening ultrasound is performed, which assesses more fetometric indicators. The baby has already grown up and you can measure not only the coccyx-parietal size, but also the length of the femur, the diameter of the chest, the biparietal size of the head. On ultrasound, the internal organs of the fetus are already clearly visible - therefore on ultrasound during pregnancy the conclusion will contain information about the heart, brain structures, stomach, kidneys and lungs of the child. The diagnosis will once again examine the face for the correct structure of the facial structures, and according to a special formula will calculate the approximate weight of the baby. Parameters of ultrasound in pregnancy will also include the placenta and the degree of its maturity, the condition of the amniotic fluid. Once again, the heart rate will be evaluated. The results of the ultrasound of the fetus will help evaluate the development of the child and the lack of lag in growth and weight.
Ultrasound 32 weeks gestation - transcript
At 32 weeks, with uncomplicated pregnancy, ultrasound is performed for the last time. Decoding of pregnant women will also include fetometric indicators (except for coccyx-parietal size, at this time it is no longer evaluated), the specialist will once again assess the condition of the main internal organs and the absence of malformations. In addition, it will be possible to evaluate the presentation of the fetus and the place of attachment of the placenta.
Comments on the table:
BRGP (BPR) is the biparietal size of the head. DB is the length of the thigh. DGPK is the diameter of the chest. Weight - in grams, height - in centimeters, BRGP, DB and DGRK - in millimeters.
If there are indications, ultrasound during pregnancy can be performed before childbirth. However, as a rule, this is no longer required, it is possible to assess the fetal status with the help of CTG (cardiotocography).
The decoding of the results of ultrasound in pregnancy should be performed by a doctor taking into account the most varied indicators - the state of the mother, the results of previous ultrasound (always take the decoding of all 3 ultrasound in pregnancy) and even the features of the constitution of both parents (for example, if mom and dad have high growth, baby can also grow more intensely than the norms prescribe). In addition, all children are different, and can not fully meet the averaged standards. If you are in doubt about some indicator, be sure to share with a doctor who you trust. He will tell you about the features of the development of the baby or will prescribe an adequate treatment.