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 singletons is 22-26 weeks of pregnancy, of which 24 weeks is the best; The best examination time for twins or multiple births is 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, so the doctor can carry out all-round abnormal detection of the fetus.
What should I pay attention to when doing four-dimensional color Doppler ultrasound?
Pregnant mothers have to go through dozens of prenatal examinations 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 examination item. Although they are all B-ultrasound examinations, compared with conventional B-ultrasound, it takes a long time, and the shortest is about 30 minutes. In order to avoid pregnant mothers waiting in line, it is necessary to make an appointment in advance for the specific time of prenatal examination and be admitted to the hospital 10 minutes in advance on the day of 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, doctors are more willing to let pregnant mothers eat, 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 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, "Be sure to take a photo with your baby today and cooperate well." Many pregnancy tests are effective! !
5, carrying chocolate: If the fetus does not cooperate during prenatal examination, pregnant mothers can eat chocolate in moderation, blood sugar in the body will rise, and the baby will become active under the stimulation of sugar. Some doctors also advise pregnant women 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 are 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 in the whole pregnancy. Pregnant mothers must pay attention to it and don't miss the best opportunity for screening to avoid inaccurate results.
You need to do four-dimensional color Doppler ultrasound 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 to avoid unnecessary harm. They should have a physical examination 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 is still at the stage of fetal appearance. In fact, the real function of four-dimensional B-ultrasound is to eliminate fetal malformation. Although all fetal malformations cannot be ruled out, some fatal fetal malformations will still be ruled out. It is proposed that the four-dimensional exclusion method can eliminate about 80% abnormalities and supplement fetal chromosome 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 its 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, but in foreign countries, it is impossible to induce labor after more than 24 weeks, so four-dimensional B-ultrasound is generally done between 20 and 24 weeks, and it can be relaxed to 28 weeks or even longer in China.
The key point is to do four-dimensional B-ultrasound not only value the machine, but also the person who operates the machine. After all, people still need to find anomalies.
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 longer. Good luck with your pregnancy.
During the whole pregnancy, it is very important to do some tests, such as nt, Down's screening, four-dimensional abnormality elimination, fetal heart monitoring and so on. It is best to carry out these tests 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 abnormal examination. The main purpose of examining intrauterine fetal growth and development by color Doppler 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 many congenital problems such as anencephaly, microcephaly, hydronephrosis and heart. The function is so powerful that we ordinary people can't imagine.
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 plane, while four-dimensional is a three-dimensional dynamic picture, 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 really a baby. Some expectant fathers and mothers will print out these photos as a souvenir to compare how far away the baby is from them when he 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 panic if we don't know what the baby is like. But four-dimensional color Doppler ultrasound can help doctors see 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-dimensional 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 visible defects on the body, they can be detected by four-dimensional color Doppler ultrasound.
2. Fetal movements are also diverse. You can turn over at any time in the uterus, and there is more amniotic fluid, 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 result is not comprehensive enough.
Four-dimensional color Doppler ultrasound is so important, of course, so what should we pay attention to when doing it?
1. About the best time. Generally, you need to make an appointment one month in advance to do four-dimensional color Doppler ultrasound. After making an appointment, you can go directly to the exam at the appointed time. Pregnant mothers had better make an appointment when the fetus is active. For example, the fetus is more active at 8- 10 in the morning, and we can make an appointment at this time. The baby is more active and more conducive to the doctor's examination.
Have a full meal before you go. You don't need an empty stomach or urination to do four-dimensional color Doppler ultrasound, so fill your stomach before doing four-dimensional color Doppler ultrasound, and then discharge the urine. Moreover, it takes some time to check all the positions of the fetus up, down, left, left, right, front and back, even if it goes smoothly, it will take 30 to 40 minutes. If the baby does not cooperate, it may take several days. Therefore, it is best for pregnant mothers to eat something before going to the hospital and bring some food such as sugar, chocolate and cake. 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 ultrasound examination of the abdomen, pregnant mothers had better wear split clothes, which is more convenient and can also prevent pregnant mothers from catching cold. It's best to put on shoes and take off shoes, because if the baby doesn't cooperate, the pregnant mother will get up to exercise or eat. Is it convenient to wear boots with shoelaces?
4. Correctly understand the four-dimensional exclusion. Before we do four-dimensional color Doppler ultrasound, the doctor will sign an agreement for us, which means that some situations can't be detected by four-dimensional color Doppler ultrasound. I hope the parties can understand and sign. In fact, many tests are still limited, including four-dimensional exclusion, which can't rule out all deformities, so don't think that everything will be fine after four dimensions. Do whatever you need to do, don't be lazy.
Although four-dimensional color Doppler ultrasound can not 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 it is 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.
Fetal malformations need to be screened twice during pregnancy, 20-24 weeks and 24-28 weeks respectively. Four-dimensional ultrasound examination is not necessary, but only an ultrasound doctor with prenatal diagnosis qualification can perform 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 singletons is 22-26 weeks of pregnancy, of which 24 weeks is the best; The best examination time for twins or multiple births is 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 abnormalities. It is recommended that every pregnant mother do this test.
If you have high risk, family birth defects, or 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 prenatal examination, 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 around properly that day to make your baby active and see more clearly.
It is best to do four-dimensional color Doppler ultrasound from 22 weeks to 24 weeks. When the baby is older, it can be photographed more clearly.
Personally, I think it was done between five and a half months and six months. The most important thing for pregnant women is mentality. Don't be too depressed, because pregnant women are generally unstable.
The best time is 5 to 6 months of pregnancy, when the fetus is basically formed. Amniotic fluid is moderate and fetal movement is good.
Four-dimensional ultrasound is needed for 28 ~ 30 weeks of pregnancy to further determine whether the fetus is developing well.
You can eat something and drink some water 30 minutes before four-dimensional color Doppler ultrasound, which can increase fetal movement and make four-dimensional color Doppler ultrasound examination more effective.
That's what my doctor said, and I did. I hope it helps you. [Smiles]