What are the parameters for fetometry?
Among the most important dimensions of the future child, which are important and changing for weeks of gestation, is:
- head circumference (OG);
- circumference of the abdomen (OJ);
- length of thigh (DB);
- coccygeal parietal size (CT);
- biparietal size (BDP).
Thus, the head circumference and biparietal size help to judge the degree and speed of development of brain structures. BDP is the distance from the upper contour of one parietal bone of the skull to the surface of the lower contour of the second one.
The circumference of the abdomen and the length of the thighs make it possible to assess the degree of physical development of the future baby. Has an important diagnostic value, because provides an opportunity to determine the delay in intrauterine development at a very short time.
How do you evaluate the results of measurements?
Estimating the size of the future child is carried out with each pregnancy, and is compared according to the table, where for each week the norm of all the above-mentioned indicators is indicated. However, it is worth noting that doctors always make a correction for the peculiarities of the course of a specific gestation. That is why none of the values can not be called absolute.
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Given this fact, the future mother herself should not be engaged in deciphering the results. Evaluate the size of the fetus (the future child), compare the values with the tables for the weeks of pregnancy, can only the doctor.