Traditional Culture Encyclopedia - Photography major - Why is the fetus crying in the four-dimensional photo? What does "short head and short thighs" mean? Four-dimensional essential knowledge points during pregnancy
Why is the fetus crying in the four-dimensional photo? What does "short head and short thighs" mean? Four-dimensional essential knowledge points during pregnancy
Almost an hour later, Xiaomei came out, and her face has been very poor. Her husband asked her if she had failed. Asked, Xiaomei almost cried. She said, "Yes, but the child is so ugly. How can it be so ugly? Not as cute as I thought. "
"Big mouth, flat nose and fat face" is the best word to describe the four-dimensional picture of the fetus. It's ugly, but parents-to-be don't have to worry, because all this may be fake.
Why is the nose and mouth big in the four-dimensional picture of the fetus? There are usually these reasons, and it will be much more comfortable to read it carefully.
First, the fetus is not fully developed.
Four-dimensional color Doppler ultrasound was performed in the second trimester. At this time, the fetus is not yet full term, and the whole body is wrapped in fetal fat. When four-dimensional color Doppler ultrasound imaging, only approximate facial contours are captured.
Second, the shooting angle.
Think about it. In life, we should find a good angle to take selfies, so that the face is small and the eyes are big, and the fetus is curled up in the uterus. When the purpose of four-dimensional color Doppler ultrasound is to eliminate abnormalities, in order to see the development of various parts of the fetus more clearly and check the malformation of the fetus, the doctor will find the corresponding angle, thus ignoring beauty and ugliness, flattening the face of the fetus and making the nose big and flat.
The third reason is the problem of imaging principle
Four-dimensional refers to the vector of time added on the basis of three-dimensional. Ultrasonic imaging system is developed according to the principle of reflection imaging when ultrasonic waves meet objects. The probe is placed on the abdominal surface of pregnant women to generate sound waves and receive reflected ultrasonic waves, thus generating corresponding images.
This image is only a general image of a fetus, and some facial details may not be taken. The final photo will enlarge the part, which will naturally lead to a big nose and a big mouth and look ugly.
Expectant mothers don't have to worry
To sum up three reasons, don't be discouraged, let alone worry, when you find the four-dimensional fetal photos ugly. Many fetuses are born completely different from the four dimensions. Some are ugly when they are born, and the longer the full moon, the more handsome it is.
Baby beauty and ugliness come from parents. If both husband and wife have high values, there is no need to entangle the problem of four-dimensional ugliness.
What is four-dimensional color Doppler ultrasound?
Four-dimensional color ultrasound is the full name of four-dimensional color ultrasound diagnostic instrument, which is the most advanced color ultrasound equipment in the world. Advanced technology can be used to image the body surface during examination and display the real-time dynamic moving images of the fetus or other human internal organs.
What should I prepare in advance to go to the hospital for four-dimensional color Doppler ultrasound?
① Make an appointment in advance
According to the gestational age, call the hospital staff in advance to make an appointment for B-ultrasound. It is not recommended to wait in the hospital too early. Because there are many people in general hospitals, the risk of infection is increased.
② Accompanied by family members.
It is best to take a private car when going out and avoid taking public transport. Being accompanied by a prospective father can not only be a driver, but also help carry a bag with water and food in it. If you encounter any problems, someone will take care of you.
③ Wear a mask for protection.
After the protective experience in March, everyone knows how to wear a mask correctly. In addition, it is best to wear disposable gloves when wearing a mask.
④ There is no need to fast or hold your urine.
Four-dimensional pregnancy takes place around 22-28 weeks. At this time, B-ultrasound examination does not need to hold urine, because it does not involve blood tests and other laboratory items, nor does it need an empty stomach. Pregnant mothers can eat at home and then go to the hospital.
⑤ Bring a medical insurance card, etc.
Don't forget things just because you are worried about the epidemic. Please bring relevant medical information before going out, such as past checklists and medical insurance cards.
Can four-dimensional color Doppler ultrasound tell the gender?
It is forbidden to check the sex of the fetus in China, so when doing four-dimensional color Doppler ultrasound, doctors generally avoid the lower body of the fetus and will not show the reproductive organs of the fetus on the image.
The content of screening fetal malformation by four-dimensional color Doppler ultrasound
① Fetal facial deformities: such as cleft lip and palate.
② Nervous system: anencephaly, hydrocephalus, microcephaly, spina bifida and meningocele.
③ Digestive system: omphalocele, visceral eversion, intestinal atresia and Hirschsprung's disease.
④ Urinary system: hydronephrosis, polycystic kidney, giant bladder and urethral obstruction.
⑤ Other deformities: short limb deformity, conjoined deformity, cleft lip, and four-heart cavity.
⑥ You can also check whether the pregnant mother has too much or too little amniotic fluid.
How much is the four-dimensional inspection?
Generally, the price of four-dimensional color Doppler ultrasound is higher than that of traditional B-ultrasound, generally between 300 and 400 yuan, and the specific cost varies according to different cities and hospitals.
Four-dimensional "short head and thighs" implies male treasure?
During pregnancy, the doctor said that the child had "short head and thighs", and later she went home and told her mother-in-law about the situation during the examination. Her mother-in-law was also very happy, saying that it might be a boy, and then she gave birth to a real son. Is this coincidence or accuracy?
Don't think too much! "Short head and thigh" has nothing to do with the sex of the fetus. It may really be that the baby's legs are affected by genetic factors and are relatively short.
In the four-dimensional examination, it is said that the fetal leg is short, but it does not mean that the baby will have short legs in the future. The reasons that affect the baby's short femur are growth and development factors, genetic factors, chromosome diseases and so on. Among many reasons, the most common is physiological short femur, that is to say, everything is normal except a little short leg.
Many old people think that the result of subtracting the femur length from the biparietal diameter is less than 2, and the result is greater than 2, which means that the "short head and thigh" are boys and the "long head and calf" are girls. In fact, this statement has no scientific basis.
The doctor said that the fetus "has a short head and thighs", so pregnant mothers don't have to worry. Most of the reasons are like this. As long as the fetal head, biparietal diameter and femoral length are within the normal range, they are all acceptable. In addition, there are differences among people, and the length of fetal legs is also hereditary. If both parents are short, the fetal femur will be influenced by parents' heredity and will not be particularly long.
So there will be a detailed diagnostic standard in clinic. As long as prenatal B-ultrasound is performed, the doctor will make a diagnosis according to the head circumference and femur length. If the limb is shorter than the normal range, pregnant women need amniocentesis to rule out chromosomal abnormalities.
To sum up, four-dimensional mothers who find their babies crying uglily don't have to worry. Everything is an illusion. Ugliness and beauty are mostly inherited from parents' appearance genes. Look at yourself in the mirror and believe that you are pregnant with a handsome baby.
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