How to do the 4D scan? Will it hurt?

How to do the 4D scan? Will it hurt?

Four-dimensional color ultrasound is an examination that must be done during pregnancy. It can check the development of the fetus in the mother's body and prevent the birth of deformed babies. It is a dynamic graph and can also check the gender of the fetus. Therefore, pregnant women can undergo four-dimensional color ultrasound when they are 5 months pregnant. It will not hurt for pregnant women to do four-dimensional color ultrasound. It is a similar abdominal B-ultrasound examination method.

Will it hurt to do a 4D color Doppler ultrasound?

Four-dimensional color ultrasound is an abdominal B-ultrasound examination and is painless.

The examination contents of four-dimensional color Doppler ultrasound mainly include:

Fetal head: skull with strong echo ring, brain midline, lateral ventricles, thalamus, cerebellar hemispheres, posterior cranial fossa cistern;

Fetal face: continuity of eye sockets and upper lip skin,

Fetal neck: whether there is edema or cystic hygroma in the neck; (4) Fetal chest: whether there is mass in the fetal lungs or pleural effusion; Fetal heart: heart position, cardiothoracic ratio, observation of four-chamber heart section, left ventricular outflow tract section, right ventricular outflow tract section, three-vessel tracheal section,

Fetal abdomen: abdominal wall, umbilical cord abdominal wall entrance, liver, kidneys, bladder,

Fetal spine: alignment, continuity,

Fetal limbs: observe the humerus and radius of the upper limbs, and the femur, tibia and fibula of the lower limbs.

Umbilical cord: number of umbilical cord blood vessels.

B -ultrasound and 4D color ultrasound to determine the sex of the fetus

How to tell the sex of the fetus from B-ultrasound data? Generally speaking, the data on the B-ultrasound report include biparietal diameter, abdominal circumference, femur length, gestational sac, fetal heart rate, etc. The placenta, amniotic fluid, umbilical cord, fetal spine, etc. can also be observed from the B-ultrasound. According to folk sayings, the gender of the fetus can be determined through B-ultrasound data in the following ways:

1. Look at the gestational sac: Look at the ultrasound report at 40-50 days of pregnancy. The size and shape of the gestational sac can tell the gender of the fetus. If the gestational sac is oval or round, it is a girl, and if it is elongated, it is a boy.

2. Look at the biparietal diameter and femur length: the biparietal diameter is the transverse diameter of the fetus's head, and the femur length is the length of the fetus's thigh bone. The older generation says that a boy is one with a longer head and shorter thighs, that is, biparietal diameter - femur length > 2, and a girl is one with a smaller difference between her head and legs.

The four-dimensional color ultrasound diagnostic instrument is the most advanced color ultrasound equipment in the world. After many pregnant women have done a four-dimensional color ultrasound, they will habitually ask the doctor whether the fetus is a boy or a girl. Although four-dimensional color ultrasound can clearly show the gender of the fetus, during the examination, in order to avoid revealing the gender of the fetus, the doctor will actively avoid the gender characteristics and lower body of the fetus. At the same time, when making the CD in the later stage, the parts that may reveal the gender of the fetus will also be processed.

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