What does the minor fetal anomaly screening check include? Pregnant mothers must read

Eugenics has always been the goal pursued by modern women, so pregnant women will do a lot of examinations during pregnancy to ensure the health of the baby, such as major fetal malformation examinations, minor fetal malformation examinations, etc. Many expectant mothers wonder whether the major and minor fetal anomaly screening tests are repeated. In fact, the major and minor fetal anomaly screening tests are different. The major fetal anomaly screening test is a four-dimensional color ultrasound performed within 22-26 weeks of pregnancy, while the minor fetal anomaly screening refers to Down syndrome screening.

Major fetal malformation screening during pregnancy: a systematic screening of the fetus for significant malformations. It is usually performed using three-dimensional or four-dimensional color ultrasound, which can detect most fetal malformations, such as malformations of the face, limbs, brain, internal organs, and heart. Minor malformation screening refers to Down syndrome screening, which is mainly performed around 15-20 weeks of pregnancy. It is mainly a method to check the risk of giving birth to a fetus with congenital defects. Major fetal malformation screening mainly refers to a four-dimensional color Doppler ultrasound screening within 22-26 weeks of pregnancy to understand whether the fetus has gross malformations and the development of major organs.

Down syndrome screening for pregnant women

principle:

Down syndrome screening is a detection method that extracts serum from pregnant women, tests the concentrations of alpha-fetoprotein, chorionic gonadotropin and free estriol in the maternal serum, and calculates the risk of giving birth to a fetus with congenital defects based on the pregnant woman's due date, weight, age, weight and gestational age at the time of blood collection.

Examination time: Down syndrome screening is performed between 14 and 20 weeks of pregnancy.

Systematic malformation screening for pregnant women

principle:

Systematic malformation screening during pregnancy is to systematically screen the fetus for significant malformations.

Like the American GE four-dimensional color ultrasound, it can detect most fetal malformations, such as facial, limb, brain, internal organs, and heart malformations. Ultrasound diagnosis can be used to determine whether the fetus is developing normally or whether it has serious deformities.

Examination time: Systematic malformation screening is generally scheduled around 21 to 24 weeks of pregnancy.