What are the reference values for 4D ultrasound data?

Females are required to undergo 4D ultrasound scans from 24 to 28 weeks of pregnancy. The 4D ultrasound scan can clearly show the length of the baby's femur, the fetal heart vibration frequency, and the outline of the head. It can also obtain a lot of data, and we can use these data to determine whether the baby's development is normal. If there is abnormal development, further examinations need to be performed to confirm whether the baby should be kept or aborted.

Many people have heard of femur length, which actually refers to the length of the fetal thigh bone. On the 4D ultrasound report, the length of the femur is a very important data. Doctors can judge the baby's development based on the length of the femur. In addition, they will compare the length of the femur with the baby's biparietal diameter. If the difference in the values is not particularly large, it proves that the baby's development is relatively good. However, if the difference is relatively large, there may be some problems.

The 4D ultrasound report also includes the fetal heart vibration frequency, which is also very crucial. The fetal heart vibration frequency should be 120 to 160 beats per minute. If the fetal heart vibration frequency is far below this value, and the baby is still in a state of sleep, it is likely that there is a phenomenon of intrauterine hypoxia. Therefore, it is necessary to carefully consult the doctor and undergo further examinations at this time.

The 4D ultrasound can also clearly reveal the general outline of the baby, which is crucial for the baby. The skull lines of a healthy baby are very round and smooth. If there is deformation or defect in the baby's head on the 4D ultrasound image, it is likely that there is a deformity during the development process. People should also pay attention to this situation.