How many weeks is the best time to do four dimensions?
Four-dimensional color Doppler ultrasound must be carried out in strict accordance with the time, because too early or too late will affect the results of prenatal examination and bring difficulties to pregnancy examination. Generally, the best prenatal examination time for single fetus is 22-26 weeks of pregnancy, of which 24 weeks is the best; The best check-up time for twins or multiple births is at the 23rd week of pregnancy.
At this time, the amount of amniotic fluid is just right, the size of the fetus is just right, and there is enough activity space in the uterus for doctors to conduct all-round abnormality detection on the fetus.
What should I pay attention to when doing four-dimensional color Doppler ultrasound?
Pregnant mothers have to go through dozens of birth checks during pregnancy, but only four-dimensional color Doppler ultrasound is the most tormenting. Some pregnant mothers have done it five or six times before and after, and finally they still have regrets and helplessness. The reason for this phenomenon is that the fetus does not cooperate!
1, Four-dimensional color ultrasound needs to be reserved in advance: Four-dimensional color ultrasound is the most important check-up item, although it is all checked by B-ultrasound, compared with conventional B-ultrasound, it takes a long time, and the shortest time is about 30 minutes. In order to avoid waiting in line for pregnant mothers, it is necessary to make an appointment in advance for the specific time of the prenatal examination, and be admitted to the hospital 10 minutes in advance on the day of the prenatal examination.
2, four-dimensional color Doppler ultrasound does not need an empty stomach: four-dimensional color Doppler ultrasound does not need an empty stomach, and doctors are more willing to let pregnant mothers eat full, because this will make the fetus more active and help four-dimensional color Doppler ultrasound pass at one time. Four-dimensional color Doppler ultrasound does not need to urinate ~
3, four-dimensional color Doppler ultrasound to choose the right time period: when the fetal movement is active, it is more helpful for doctors to comprehensively detect the development of various organs and parts of the fetus. Pregnant mothers can choose to have a check-up one hour after meals or after a nap.
4. Develop the habit of communicating with the fetus: After four months, the fetal auditory system has been initially developed and perfected, and pregnant mothers can choose to give music prenatal education or language communication to the fetus every day. On the day of the check-up, you can touch the pregnant belly and say to the fetus, "You must take photos with your baby today, and you must cooperate well." Many pregnancy tests are effective! !
5, carrying chocolate: If the fetus does not cooperate during the prenatal examination, the pregnant mother can eat chocolate in moderation, and the blood sugar in the body will rise, and the baby will become active under the stimulation of sugar. Some doctors also advise pregnant mothers to climb stairs or jump. Pregnant mothers must pay attention to the safety of their feet and wear flat shoes.
Four-dimensional color Doppler ultrasound takes a long time, so pregnant mothers must choose warm and comfortable upper and lower split clothes, which is convenient to put on and take off and will not bring embarrassment to pregnant mothers.
Finally, I wish all pregnant mothers a one-time pass of four-dimensional color Doppler ultrasound! !
How many weeks is the best time to do four dimensions?
Four-dimensional color Doppler ultrasound is the most important stage of the whole pregnancy, so pregnant mothers must pay attention to it and don't miss the best time for screening to avoid inaccurate results.
Four-dimensional color Doppler ultrasound needs to be done three times during the whole pregnancy, namely:
2. 22-24 weeks
3 .28-32 weeks
What should I pay attention to before doing four-dimensional color Doppler ultrasound?
To sum up, pregnant mothers should not miss the above three important screening stages, so as not to cause unnecessary harm. They should have a checkup in strict accordance with the doctor's requirements, and don't miss the best screening time for fear of trouble.
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Many treasure mothers' understanding of four-dimensional B-ultrasound still stays at the stage of fetal appearance. In fact, the real function of four-dimensional B-ultrasound is to eliminate fetal malformations. Although all fetal malformations cannot be ruled out, some fatal fetal malformations will still be ruled out. It is suggested that four-dimensional exclusion can eliminate about 80% of abnormalities and supplement fetal chromosomal abnormalities.
The best time for four-dimensional B-ultrasound examination should be 20-24 weeks. At this time, the organs and structures of the fetus have been formed, and the fetus is not particularly large, and the range of activities in the uterine cavity is also large. At this time, it is easier to see the fetal structure by doing four-dimensional B-ultrasound, and in foreign countries, it is impossible to induce labor after more than 24 weeks, so four-dimensional B-ultrasound is generally performed between 20 and 24 weeks, and it can be relaxed to 28 weeks or even more in China.
The point is that doing four-dimensional B-ultrasound not only values the machine, but also the person who operates the machine. After all, it still needs people to find abnormalities.
To sum up, the best time to do four-dimensional work should be 20-24 weeks, and some can be relaxed to 28 weeks or even more. Wish you a good pregnancy.
During the whole pregnancy, it is important to have some tests, such as NT, Down's screening, four-dimensional abnormality removal, fetal heart monitoring, etc. These tests are best carried out at the best time, because only in this way can we get the most accurate results and achieve the best results.
Four-dimensional color Doppler ultrasound is an abnormality check. The main purpose of checking the growth and development of intrauterine fetus through color ultrasound equipment is to eliminate fetal malformation and reduce the birth rate of fetal malformation. Through four-dimensional color Doppler ultrasound, we can check whether there are any defects on the fetal body surface, such as cleft lip and palate, and even nervous system, digestive system and many other congenital problems like anencephaly, microcephaly, hydronephrosis and heart. The function is so powerful that we ordinary people can't imagine it.
Compared with other two-dimensional and three-dimensional color Doppler ultrasound, the image of four-dimensional color Doppler ultrasound is more stereoscopic, because three-dimensional is a plan, while four-dimensional is a three-dimensional dynamic map, which can directly see the real-time dynamics of the fetus, such as the baby yawning and sucking his fingers. Although it is separated from the screen, it is a real baby. Some prospective fathers and expectant mothers will print these photos as a souvenir, so as to compare how far the baby is from when it is born.
It is really necessary to do four-dimensional color Doppler ultrasound, because the baby is in the belly, we can't see anything, and we will feel panic if we don't know what the baby is like. But four-dimensional color Doppler ultrasound can help doctors look at every tiny position of the baby and help doctors make correct judgments. So when is the best time to do four dimensions? The best time to do four dimensions is 22-24 weeks.
1. At this time, the development of various organs of the baby's body is basically perfect. If there are any defects on the body that can be seen by the naked eye, they can be detected by four-dimensional color ultrasound.
2. The movements of the fetus are also diversified. You can turn over at any time in the uterus, and there are more amniotic fluids, which is convenient for the fetus to move in the uterus, and it will be more convenient and easy to check.
3. If the examination time is too early, the development of fetal organs is not perfect, and some can't be detected. If the examination time is too late and the fetus is too big to turn over, the results will not be comprehensive enough.
Four-dimensional color Doppler ultrasound is so important, of course, we should do it, so what should we pay attention to when we do it?
1. Make an appointment at the best time. Generally, you need to make an appointment one month in advance to do four-dimensional color ultrasound. After making an appointment, you can go directly for an examination at the appointed time. It is best for pregnant mothers to make an appointment when the fetus is more active. For example, at 8-10 in the morning, we can make an appointment at this time. The baby is more active, and it is more conducive to the doctor's examination.
2. Eat a full meal before you go. You don't need an empty stomach or urinate to do four-dimensional color ultrasound, so fill your stomach before you do four-dimensional, and then drain your urine. And because it is necessary to check all the positions of the fetus up, down, left, left, right, front, back and forth, it will take a certain time, even if it goes well, it will take 30 to 40 minutes. If the baby does not cooperate, it may take several days. Therefore, pregnant mothers had better eat before going to the hospital, and bring some food such as sugar, chocolate and cakes. First, they can satisfy their hunger when they are hungry. Second, if the baby is unwilling to move, eating these things can make the baby more active.
3. Change into convenient clothes. Four-dimensional color Doppler ultrasound examines the abdomen, so it is best for pregnant mothers to put on split clothes, which is more convenient for one thing and to prevent pregnant mothers from catching cold. It's better to put on and take off the shoes, because if the baby doesn't cooperate, the pregnant mother will get up to exercise or eat something. Would it be convenient to wear long boots with shoelaces?
4. Correctly understand the four-dimensional exclusion. Before we do the four-dimensional color Doppler ultrasound, the doctor will sign an agreement for us, which means that some situations cannot be detected by the four-dimensional color Doppler ultrasound. I hope the parties can understand and sign it. In fact, many tests still have limitations, including four-dimensional exclusion, which can't rule out all deformities, so don't think that everything will be OK if the four-dimensional is passed. What tests should be done or not, and don't be lazy.
Although four-dimensional color Doppler ultrasound can't detect all malformations, it plays a great role in the whole pregnancy and can help doctors make good judgments. Although everyone hopes that every child is healthy, if unfortunate, at least early detection, early intervention and early treatment can be achieved.
Thank you for your invitation. I'm Shen Huan, a reproductive doctor. I'm glad to answer this question for you.
During pregnancy, fetal malformation needs to be screened twice, 20-24 weeks and 24-28 weeks respectively. It is not necessary to carry out four-dimensional ultrasound examination, but it must be an ultrasound doctor with prenatal diagnosis qualification to carry out deformity screening.
Four-dimensional color Doppler ultrasound must be carried out in strict accordance with the time, because too early or too late will affect the results of prenatal examination and bring difficulties to pregnancy examination. Generally, the best prenatal examination time for single fetus is 22-26 weeks of pregnancy, of which 24 weeks is the best; The best check-up time for twins or multiple births is at the 23rd week of pregnancy.
The best time to do four-dimensional should be 22 weeks to 26 weeks, generally speaking, about 24 weeks is the best. The main purpose of four-dimensional examination is to detect fetal development and screen fetal surface malformation. It is recommended that every pregnant mother should do this examination.
If you have high risk, family birth defects, or elderly pregnant women over 35 years old, you may need further examination, that is, amniocentesis, so as to ensure the growth of the fetus more accurately.
It is recommended to wear some loose clothes on the day of birth check-up, because you may not be able to see the fetus at once, and you may need to go back and forth several times. At the same time, pregnant mothers can prepare snacks. After all, the waiting time is a bit long. You can walk properly that day to make your baby active and see him more clearly.
It is best to do four-dimensional color Doppler ultrasound from 22 weeks to 24 weeks. The baby is older and takes a clearer picture.
Personally, it was done between five and a half months and six months. The most important thing for pregnant women is their mentality. Don't let yourself be too depressed, because pregnant women are generally unstable.
The best time is from 5 months to 6 months of pregnancy, when the fetus is basically formed. Amniotic fluid is moderate, and fetal movement is good.
At the 28th to 30th week of pregnancy, a four-dimensional ultrasound is needed to further determine whether the fetus is developing well.
You can eat something and drink some water 30 minutes before the four-dimensional color Doppler ultrasound, so as to increase fetal movement and make the four-dimensional color Doppler ultrasound examination more effective.
That's what my doctor said at the time, and I did it. I hope it helps you. [Smiles]