With the development of technology, many pregnant women want their fetuses to be in a healthy state, so they naturally go to the hospital for some ultrasound examinations. For example, ultrasound can see the development status of the fetus in the belly, such as gender and the development status of various organs. So, is the fetal weight accurate on ultrasound?
No, due to the large error in measuring fetal length, such as the curled posture of the fetus or the size of the skeleton, it may cause misjudgment of the results. Therefore, in medicine, weight rather than length is used as the basis for evaluating fetal growth. The difference between the weight of the fetus after coming into this world and the weight detected in the mother's belly is about 10% -15%, and the reasons can be divided into the following three types:
1. The examination is not direct, as the fetus is in the mother's womb and the doctor detects the fetus by examining the pregnant woman. This method may vary under the influence of factors such as amniotic fluid and different positions of the fetus.
2. Changes in Pregnant Women in Late Pregnancy: Pregnant women's weight will undergo significant changes in the last few months. So due to this situation, there will be a significant difference in weight between the two.
3. Parameter setting of B-ultrasound equipment: Many medical devices in hospitals are not domestically produced, and the standards for these devices are mostly based on those developed by foreign people. It is quite different from the Chinese in body shape, so there may be errors.
