What is the difference between anomaly detection and 4D

Now is the era of two children. Since the relaxation of the two-child policy, I believe that many people born in the 1980s are the main force of the second child. Every pregnant mother should understand the role of fetal malformation screening and four-dimensional examinations. Nowadays, medicine is very advanced and has done a good job in detecting deformities. Four-dimensional color ultrasound can clearly see the gender of the fetus and various parts of the body. Both examinations are necessary.

1. What is the difference between major fetal anomaly screening and four-dimensional scanning? The examination time is different.

The so-called "major fetal malformation screening" is a detailed B-ultrasound examination. Its main purpose is to check whether the fetus is malformed in all aspects of development, and then rule out malformations in advance. This examination is usually performed in the 20th to 24th week of pregnancy. Generally, the time for four-dimensional color ultrasound is between the 5th and 8th month of pregnancy, because during this period, the fetus's limbs and major organs have all developed, and the baby's development can be clearly seen through B-ultrasound.

2. What is the difference between major fetal anomaly screening and four-dimensional scan? The significance of the examinations is different.

Although B-ultrasound for fetal fetal abnormality screening can comprehensively examine all aspects of fetal development, only professional doctors can understand it, so it is only meaningful for examining fetal development. However, four-dimensional color ultrasound can not only check the baby's development, but also take selfies and dynamic videos of the fetus. Expectant mothers can witness the cute smiles of their babies in advance, which adds interest to many expectant mothers. Therefore, it has a commemorative significance compared to major fetal malformation screening.

In terms of examination items, the two are almost the same, generally including fetal position, biparietal diameter, occipital-frontal diameter, abdominal diameter, femur length, sacrum length, amniotic fluid, fetal movement, fetal heart rate, fetal position, placental thickness, placental grade, lower edge of the placenta, cerebellum, upper lip, gastric bubble, four chambers of the heart, both kidneys, bladder, tibia, fibula, ulna, radius, spine, abdominal wall and other examinations. It’s just that the four-dimensional B-ultrasound allows expectant mothers to “see” the baby in their belly earlier and is more memorable.

I hope everyone can have a check-up on time and welcome a healthy, lively and cute baby!