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What Does 3d And 4d Ultrasound Reveal?

In addition to the pleasant moments of observing the baby in the antenatal period, 3D/4D ultrasound also has an informative component. The screening procedure is extremely important for assessing the development of the child, as well as the condition of the uterus and placenta. In the third trimester, the body is preparing for childbirth - it is important that all conditions are met for this.


Conducting high-precision 3D ultrasound allows you to evaluate:

Foetal presentation - for a natural delivery, only head presentation is permissible, the remaining options for the position of the child in the abdomen are indications for surgical intervention;

the size, maturity, and position of the placenta - hyper- or hypoplasia can indicate the presence of its inflammation, too low a position will block the birth canal of the baby, and premature aging is a common cause of foetal hypoxia;

Amniotic fluid volume - they should not be too much or not enough;

The height, weight, and length of the baby's bones - this allows you to correlate his physical development with the gestational age and size of the mother’s abdomen, as well as predict the baby’s weight at the time of birth;

The blood vessels of the umbilical cord - it is through them that the baby receives food.

Such an examination is carried out abdominally, through the anterior abdominal wall. It does not require any special preparation, you only need a positive attitude and a good mood of your mother! Overweight pregnant women, oligohydramnios, a scar on the uterus or abdomen, and umbilical cord loops can interfere with the construction of a clear 3D image.

When is it best to have a 3D / 4D foetal ultrasound?

The procedure does not harm the foetus at any gestation period - a three-dimensional ultrasound is performed in the same way as a regular one, just the image is much clearer and more voluminous. You can do 3D / 4D ultrasound during screening or separately undergo an ultrasound examination at any stage of pregnancy:

3D/4D ultrasound of the 1st trimester of pregnancy - 11-14 weeks. In addition to the high diagnostic efficiency on a 3D / 4D device, the expectant mother gets the opportunity to see the whole baby as he moves his small arms and legs, waves, puts his foot on his leg, straightens his fists and sucks a finger.

3D/4d ultrasound test in the 2nd trimester of pregnancy - 18-22 weeks. The foetus is becoming more and more like a new-born baby, he has already formed a face. In the second trimester, crumbs are actively developing facial expressions - right now you can see his first smile! The kid sucks his thumb and frowns, you can already recognize his ears, eyes, and nose- for a short time, and you can still see the child in full growth on a 3D / 4D ultrasound machine.

3D/4D ultrasound in the 3rd trimester of pregnancy - 30-35 weeks. This is the most favourable time for 3D/4D ultrasound, in addition to informational content, the image will be of greater interest to mom. At this time, the baby has already formed all the vital systems. He already looks like a new-born baby, he even has eyelashes, nails, and sometimes the hair on his head! He knows how to smile and open his eyes. In the third trimester, the baby has developed all five senses - he sees light, feels the taste and smell of amniotic fluid, hears sounds and feels touch through his mother’s stomach. To see your baby at this time is the highest happiness for every mom!

3d And 4d Ultrasound During Pregnancy

3D -4D- the study of the fetus is an additional research method, which is carried out only simultaneously with an ultrasound of the fetus at different stages of pregnancy!


Ultrasound of the fetus in 3D and 4D modes can be performed at any time during pregnancy.

If a specialist in ultrasound diagnostics during the ultrasound of the fetus suspects any deviations in its development, then it is imperative to conduct such an additional construction of a three-dimensional image of one or another part of the fetus of interest.

At the request of future parents, the doctor can build an image of the embryo or the face of the fetus in 3D-4D modes.

Future parents need to know that the most favorable time for successful research in 3D-4D modes is 17-18 weeks, i.e. II trimester (13-24 weeks). Success in building a three-dimensional (four-dimensional) image of the fetus depends on the amount of amniotic fluid and the position of the fetus. In the II trimester, the fetus has not yet reached its maximum size, as in the III trimester; the amount of amniotic fluid is enough to build an image.

Amniotic fluid is the acoustic window for successful imaging, and the desired position of the fetus allows you to get the most complete picture. Not always during the entire study, the fetus takes the right position to build a three-dimensional (four-dimensional) image. In this case, during the next screening, you can try to build the image in 3D-4D modes.

An expert study includes an ultrasound during pregnancy of the appropriate period, in the third trimester with the mandatory Doppler study (blood flow in the mother-placenta-fetus system) with the creation of a 3D image of the fetus in 3D and 4d ultrasound test.

Ultrasound findings include:

Ultrasound diagnosis,

Images of the fetus and a disc with the recording of images and mini-video clips that the expectant mother receives on the day the ultrasound is performed.


Three- and four-dimensional ultrasound of the fetus is one of the latest ultrasound diagnostic methods that have emerged using modern computer technology. These studies have expanded the possibilities of an objective assessment of the intrauterine development of the fetus and allow it to obtain a three-dimensional image of the baby on the screen of an ultrasound scanner.

For example, with the usual two-dimensional ultrasound, only a specialist can evaluate the “picture” on the monitor screen, while three-dimensional ultrasound allows parents to see the real “photo” of the baby for the first time.

A four-dimensional study is different in that in addition to the volumetric image acquisition of the child (height, width, and depth of the picture), fetal movements can be seen in real-time. That is, a fourth dimension is added to 3D ultrasound - time, which allows you to observe the intrauterine life of your baby.

Recommended dates

An obligatory screening ultrasound examination during pregnancy is carried out three times: at 11 - 14, 18 - 24 and 32 - 36 weeks. An additional study is prescribed if there is evidence and if there are suspicions of possible abnormalities in the development of the fetus and placenta, amniotic fluid pathology and pregnancy. 3d ultrasound and four-dimensional ultrasound is recommended at 17-18 weeks.

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