Fetal fetometry monitoring the development of the unborn child. What is fetometry and why do you need to know fetal parameters during pregnancy?

Absolutely all pregnant women periodically have to undergo ultrasound examinations. During such an examination, the doctor pays attention to the size of the baby’s body parts and necessarily compares them with the norm for this stage of pregnancy.

What is fetal fetometry and what is it for?

Fetometry is the determination of the size of the fetus using ultrasound. It allows you to determine how the baby’s growth and development is proceeding, diagnose disorders and identify most threats in time.

All measurements are usually taken in millimeters according to a plan that is universal for all clinics.

The results obtained are compared with the standards that have already been determined for each week. This allows us to draw conclusions about the correspondence of fetal development to the stated gestational age.

During each ultrasound examination, the doctor must issue a conclusion indicating all fetometric parameters:

• The coccyx-parietal size (CPR) is the baby’s growth from the crown to the tip of the coccyx, especially informative in the early stages of pregnancy;
• Biparietal size (BDS) is the width of the fetal head, measured along the smallest axis between the temples; it is especially important to determine it in the second trimester;
• Femur length (HL), more precisely, measures the femur;
• Abdominal circumference (AC);
• The volume of the chest (CG) is the same as the diameter (DH).

These indicators make it possible to clarify the duration of pregnancy and have different information content at different stages, so the best results are obtained by simultaneous comparison of all. Most often, before the 36th week, doctors pay more attention to coolant, BPR and DB, and after that - to coolant, OG and DB.

Acceptable standards

When interpreting the results of his measurements, the doctor uses a ready-made plate with acceptable standards. They differ for each week of pregnancy, for example, BDP at the 20th obstetric week is 47 mm, and OG is 34 mm. On the 32nd, these values ​​are already 82 mm and 63 mm, respectively.

Serious deviations from the norm may be a sign of internal diseases of the fetus. Knowing the measurement results, the expectant mother can independently interpret them using a special table.

A discrepancy between the size of the fetus and the norm may indicate:

1. Intrauterine growth retardation (if there is a delay of 2 weeks, less is not a reason for suspicion);
2. The presence of congenital pathologies;
3. Fetal mutations.

If certain fetal indicators do not coincide with the norm, do not panic. Sometimes the reason is a simple measurement error made by the doctor.

It often happens that all the real indicators of the fetus do not coincide with the tabulated ones; in this case, errors in determining the gestational age cannot be ruled out. Therefore, in such situations, additional studies are always prescribed, most often Doppler measurements.

Fetal fetometry by week (table)

To simplify the interpretation of fetometry results, a special plate with average results has been created. It indicates the norms of fetal fetometiya by week, starting from the 11th week; measurements are not taken before.

But we must take into account that the average values ​​​​are recorded in the plate, and the sizes of each baby may differ. This depends on many factors, including heredity. Therefore, if a child is slightly smaller than normal, this is not a reason to worry; you need to monitor his growth dynamics. If it is positive, this may be an individual characteristic of the baby.

Rules for the procedure

Fetometry is a mandatory part of the standard. The doctor may also order additional tests if he has doubts about the development of the fetus. Measuring the fetus can be done either during an ultrasound examination through the anterior wall of the abdomen or during a transvaginal examination.

Only a doctor has the right to decipher the results of fetometry, taking into account some individual aspects, for example, the height, weight and build characteristics of the parents, as well as their age.

Features of preparation for fetometry depend on the method by which it will be carried out:

• During a transabdominal examination (through the anterior wall of the abdomen) in the early stages, the patient needs to drink about half a liter of water an hour before the procedure. In the 2-3 trimesters there is no such need.
• Transvaginal examination does not require any preliminary preparation.

Sometimes a doctor may use both methods simultaneously to clarify the results. It is important for the expectant mother to clarify in advance, even when making an appointment, how the research will be carried out.

1st Trimester of Pregnancy.

3 Months of Pregnancy.

Before the expected date of birth + 28 weeks.

For Mom Features of the week.

Weight gain depending on the stage of pregnancy - per week

The total average weight gain for a given week of pregnancy is only 300 grams per week

Depending on body mass index. For 12-13 weeks of pregnancy.

Body mass index is calculated = weight (kg) / (height m2)2

With a BMI of less than 19.8, graceful women with a fragile build – 2 kg

With a BMI of 19.8-26, women of average build – 1.5 kg

With a BMI of more than 26, large women, strong build – 0.9 kg

The height of the uterine fundus is 10-11 cm, approximately at the level of or slightly above the womb

Child Features of the Week.

You may have a rapid heartbeat, this is normal during pregnancy, because you have an increased metabolism and an increased volume of circulating blood.

At the same time, the symptoms of toxicosis go away. The urge to urinate no longer bothers you as often. Possible constipation.

Don't miss the first ultrasound screening + tests.

The child's proportions look more and more like a tiny person.

He may put a finger in his mouth, be frightened by an intense loud sound, and he has his own sleep and wake cycles. He developed reflexes that you will observe during the newborn period, for example, bending the hand into a fist when pressing on the center of the palm.

After 12 weeks, a child is no longer so critical of the effects of medications.

Heart rate 162 beats per minute. Average value 162, norm from 150 to 174

The length (height) of the fetus is 8.2 mm.

Fruit weight 19 grams.

Fetometry

(KTR) Coccyx-parietal size

12 weeks (CTP) Coccygeal-parietal size 51 mm Average value 51, norm from 40 to 58

12 weeks and 1 day (CTP) Coccygeal-parietal size 53 mm Average value 53, norm from 44 to 62

12 weeks and 2 days (CTP) Coccygeal-parietal size 55 mm Average value 55, norm from 45 to 65

12 weeks and 3 days (CTP) Coccygeal-parietal size 57 mm Average value 57, norm from 47 to 67

12 weeks and 4 days (CTP) Coccygeal-parietal size 59 mm Average value 59, norm from 49 to 70

12 weeks and 5 days (CTP) Coccygeal-parietal size 61 mm Average value 61, norm from 50 to 72

12 weeks and 6 days (CTP) Coccygeal-parietal size 62 mm Average value 62, norm from 51 to 73

Fetal fetometry according to ultrasound data

for a period equal to twelve full weeks of intrauterine development

BPD Biparietal size 20 mm +/- 4 mm. Average value 20, norm 16 from 24 to

LZR (OFD) Fronto-occipital size 24 mm+/- 2 mm. Average value 24, norm from 22 to 26

(OG) Head circumference 70 mm+/- 15 mm. Average value 70, norm from 55 to 85

DB (FL) Thigh length 10 mm +/- 2.5 mm. Average value 10, norm from 7.5 to 12.5

(DP) Shoulder length 9mm +/- 2mm. Average value 9, norm from 7 to 11

Coolant (AC) Abdominal circumference 63mm +/- 10mm. Average value 63, norm from 53 to 73

Nasal bone 3.1 mm. The average size of the nasal bone is 3.1, the norm is from 2.0 to 4.2

Table with average fetal fetometry values ​​by week of pregnancy

• KTR (coccygeal-parietal size);
• BDP (biparietal size);
• OG (chest circumference);
• AB (abdominal circumference);
• DB (femur bone length).

Table of average CTE values ​​(according to the timing of the first screening ultrasound)

Biparietal and fronto-occipital dimensions gradually increase according to the period of intrauterine development of the baby, the increase in indicators slows down by the 3rd trimester

Decrease in biparietal size

A shift in indicators in a negative direction according to the table of norms indicates insufficient BPR (biparietal size) for the required period. A common cause of the disorder is intrauterine growth retardation, which can occur for a number of reasons:

• the presence of bad habits in a pregnant woman that cause intoxication of the body;
• malnutrition, lack of vitamins, fatty acids, proteins and other nutrients during pregnancy;
• expecting the birth of twins, triplets, etc.;
• hypertension or endocrine diseases;
• infectious process in the body of the expectant mother.

There are two forms of deviation. A small head size in the fetus occurs with a symmetrical form of developmental delay. In addition to a decrease in BPR (biparietal size), there will also be a deviation in all other parameters. With such disorders, the risk of abnormalities in fetal development increases. To assess the severity of the delay, specialists use 3 degrees of developmental disorders according to the table for ultrasound diagnostics:

The degree of IUGR (intrauterine growth retardation) determines the further method of monitoring the progress of gestation.

To assess the severity of the delay, 3 degrees of developmental impairment are used according to the table

Increase in biparietal size

An enlarged fetal head most often indicates brain damage due to dropsy (hydrocephalus). There are 2 types of disease that require additional ultrasound examination of the central nervous system.

The first type is external dropsy, in which cerebrospinal fluid fills the area between the membranes of the brain. This disease requires an ultrasound diagnosis of the subdural space of the brain.

The second type - internal dropsy is the most severe deviation. In internal dropsy, fluid accumulates inside the brain. The disease is detected by examining the ventricles of the brain using ultrasound. It arises from compression of brain tissue and atrophy of the cortical structures and trunk, which can lead to the arrest of fetal development in the womb.

Increased head size may be a manifestation of individual development, and not a deviation from the norm. Therefore, when assessing BPD, it should be correlated with the parameters of the chest, abdomen, arms and legs. If only the biparietal size of the head is increased and a lot of cerebrospinal fluid is detected, then the final diagnosis is made - dropsy.

Ultrasound during pregnancy requires mandatory determination of the size of the fetus. One of the important indicators of normal development is the coccygeal-parietal size of the fetus (CTS) - a value measured in millimeters at different stages of gestation.

To determine this indicator, the maximum length of the body from the head is measured: the highest point of the head (crown) and the lowest point of the fetal body (tailbone) are taken. It is by them that the degree of development of the child and his compliance with development standards will be assessed.

CTE is determined by ultrasound at the first screening of pregnant women. The first planned ultrasound should be performed between 10 to 14 weeks, its results will be the basis for assessing the condition of the fetus. The coccygeal-parietal size is compared with the weight of the fetus and the gestational age in weeks. This allows for dynamic monitoring of its development and tracking of possible deviations from the norm. This indicator also determines the expected date of birth.

CTE is measured at the first screening, since at this time the indicators most accurately assess the fetus and identify possible disorders of its development. The study of this indicator at a later date will be uninformative, and its results will be unreliable.

The measurements obtained as a result of the measurement are correlated with the norm. Decoding occurs using a special table, which contains data on the CTE norms for weeks of pregnancy, from the 7th to the 14th.

10 mm. – 7 weeks;

15 mm. – 8 weeks;

22 mm. – 9 weeks;

31 mm. – 10 weeks;

42 mm. – 11 weeks;

51 mm. – 12 weeks;

63 mm. – 13 weeks;

76 mm. – 14 weeks.

An increase in gestational age, starting from the 11th week, may be accompanied by higher CTE rates. This can be regarded as the norm. Therefore, in these cases, a repeat ultrasound is prescribed to monitor changes.

In addition to an increase in the indicator, there may also be deviations in a smaller direction, which can be clearly recorded. The reasons for a significant deviation from the norm may be the following:

1. Incorrectly determined obstetric period. This occurs quite often in women with menstrual irregularities. Ovulation occurs late, and, accordingly, fertilization is also delayed in time. Therefore, even at 14 obstetric weeks, the baby’s size will lag behind the norm and this is an acceptable value. In order to confirm this version of development, the pregnant woman is prescribed a repeat study. This is done approximately a week to 10 days after the initial ultrasound. This way the dynamics can be traced.

2. The presence of infectious diseases. Various infections, including sexually transmitted ones, can negatively affect the intrauterine development of a child and cause changes in indicators. In this case, the pregnant woman is sent for additional examination to identify such diseases.

3. Insufficiency of the hormone progesterone. Very often, its deficiency is the cause of premature termination of pregnancy. To prevent such a result, the doctor prescribes appropriate medications, this could be Duphaston or Utrozhestan. They make up for the lack of this hormone, which is important for maintaining pregnancy.

4. Chromosomal abnormalities in fetal development. This includes genetic disorders such as Down syndrome, Edwards syndrome, and Patau syndrome.

5. Possible fetal death as a result of a non-developing pregnancy. The absence of heartbeats, along with a low CTE, and lack of physical activity indicate a non-developing pregnancy. In this case, emergency assistance is required in the form of uterine curettage to avoid adverse consequences.

In addition, deviations in the coccygeal-parietal size indicator can be caused by diseases of the internal organs of a pregnant woman or a violation of the intrauterine mucosa.

Norms of nasal bones

The nasal bone is a quadrangular elongated bone. Hypoplasia itself is an underdevelopment of an organ at the very beginning of its formation. Any manifestation of it is a pathology.

The length of the nasal bone is an indicator of the normal development of the fetus. There are two pathological conditions – hypoplasia and aplasia. Hypoplasia is a decrease in its length, and aplasia is the absence of this bone. Both of these conditions indicate the presence of pathologies in the fetus associated with chromosomal abnormalities. This indicator is detected through ultrasound. Its normal values ​​indicate intrauterine development without deviations. If the nose indicators are small, i.e. If there are deviations in the direction of decrease, then this condition is a sign of hypoplasia. An obvious pathology and deviation is the absence of nasal bones, this indicates the absence of this organ and a gross anomaly. This happens rarely, in exceptional cases.

The nasal bone is visualized by ultrasound already at 10-11 weeks. Deviations in this indicator are considered a sign of certain diseases caused by chromosomal abnormalities. These are conditions such as Down syndrome, Edwards syndrome, Patau syndrome, etc. In the early stages of pregnancy, the presence of this bone in the fetus is important, and measurement of its size for diagnostic purposes should be made no earlier than the 12th week. With hyperplasia or aplasia detected on ultrasound, one can suspect not only abnormal intrauterine development, but also Down syndrome. In this case, additional examination is necessary.

The growth and development of the fetus occurs in accordance with certain patterns and standards, confirmed by science and life. This also applies to the parameters of the nose of the unborn child:

So, the norm at 12 weeks is considered to be 3 mm in length;

at 20 weeks it should be from 5.7 to 8.3 mm;

at 35 weeks - at least 9 mm.

These normal indicators are the starting point for deciphering and studying the results of ultrasound prenatal screening. The information obtained as a result is the basis for further monitoring of the condition of the fetus, in order to identify possible developmental anomalies. If during an ultrasound it is impossible to determine the presence of nasal bones and a thickening of the collar zone is noted, then doctors note a high degree of probability that the child will be born with congenital defects or with Down syndrome.

To determine hypoplasia, the following table is used, which presents the norms of the indicator at different stages of pregnancy. Based on this table, which presents the average, minimum and maximum values, doctors summarize the data obtained from ultrasound and give the appropriate conclusions:

Causes of this pathology

• taking potent medications in the early stages of pregnancy, including antibacterial drugs;
• excessive consumption of alcohol and tobacco products;
• prolonged overheating of a pregnant woman;
• hereditary predisposition;
• severe illness in the early stages of pregnancy;
• infectious diseases such as rubella, toxoplasmosis, influenza, etc.;
• injuries and bruises of a pregnant woman;
• poisoning with dangerous chemicals;
• gamma radiation from a woman during pregnancy;
• environmental factors that have a harmful effect on the body of a pregnant woman.

View and buy books on ultrasound by Medvedev:

Fetal fetometry is a method of determining the size of the anatomical structures of the unborn baby using ultrasound. Diagnostic data is checked against standard indicators to find out whether the baby is developing correctly in the womb.

Routine ultrasound examinations are carried out three times: at 12, 20, and 32 weeks. The normal course of pregnancy gives reason to carry out fetometric diagnostics during the same period.

The procedure is carried out in two ways:

• transvaginally - a vaginal sensor is inserted into the vagina.
• transabdominal - the contents of the uterus are viewed through the external abdominal wall.

During the examination, the doctor takes measurements of the fetal organs on the monitor screen, then makes a diagnosis about the correct development and formation of individual organs.

Additionally, fetometric analysis is usually carried out in the following cases:

• the mother's condition is of concern to the gynecologist;
• there is a suspicion of a violation of intrauterine development of the fetus.

Key points of fetometric research

The key data of a fetometric study are the following indicators:

• DB - thigh length;
• BPR - biparietal size;
• DP - shoulder length;
• KTP - coccygeal-parietal size;
• DN - length of the nasal bone;
• LZR - fronto-occipital size;
• OG - head circumference;
• DG - tibia length;
• AB - abdominal circumference;
• TVP - thickness of the collar space.

A decoding of the designations of the studied parameters is provided, since the fetometric data is written in the table in Latin.

A video about the stages of ultrasound was presented by the 1st Medical Quarter of Crede Experto on Taganka.

Child's weight

By the 12th week, the baby’s body weight is normally only 19 g; by the middle of pregnancy, the baby will weigh about 345 g, and by the 32nd week - almost 2 kg.

If you promptly pay attention to the problem with the discrepancy between the fetal body weight and the standard, and take preventive measures, then it will be possible to correct the situation relatively easily. The rate of weight gain is greatly influenced by genetic factors. The gynecologist makes sure that the dynamics are positive.

KTR (CRL, coccygeal-parietal size)

KTR (Latin analogue of CRL) means coccygeal-parietal size, that is, the height of the child. It is calculated from the crown to the end of the coccyx.

If this indicator differs slightly from the norm, then the fetus is not in danger. An increase in CTE over several weeks by the same value indicates that the fetus is relatively large in size.

BPD (BPD, biparietal and fronto-occipital head dimensions)

The letters BPD indicate the width of the fetal head. This is the maximum distance between the parietal bones. The size can be determined by taking measurements along the smallest axis of the circle between the child's temples. BDP allows you to determine the exact duration of pregnancy.

The parameter of biparietal fetal head size (BSD) helps to identify developmental abnormalities already during the first trimester. The data obtained characterize the state of the fetal nervous system.

The LZR or fronto-occipital size is calculated between the most distant points of the forehead and the back of the head.

OG (chest circumference)

The volume of a child's chest is determined by calculating the diameter of its circumference. An abnormal size should not cause any particular concern; most likely, it is a genetic feature. Perhaps the baby will simply be born large. It is necessary to take into account the physical characteristics of the mother and father.

AB (abdominal circumference)

Abdominal circumference is measured at 20 and 32 weeks of pregnancy. The parameter is calculated along the line of the liver, stomach and umbilical vein. When the difference in indicators exceeds the permissible norm, the doctor will diagnose intrauterine growth retardation. However, to confirm it, the size of the coolant is calculated in relation to other parameters - the size of the head, femur, and BPR. If most indicators are normal, then this indicates a delay in the development of the asymmetric form.

DB (femur length)

If a discrepancy in the thigh length is detected, this also does not indicate the presence of pathology. Much depends on individual characteristics. For example, when the length of the femur and shin bones is longer than normal, it means that the parents of the unborn baby or other relatives have a long leg.

PMP (PVP)

PVP is the estimated body weight of the fetus. During an ultrasound examination, there is a possibility of an error in weight. To eliminate errors, this figure is calculated using various medical formulas.

Calculation methods:

• Zhordania (Lebedeva) - PMP = height of the uterine fundus × abdominal circumference.
• Bublichenko - PMP = 1/20 of a woman’s weight.
• Lankowitz - PMP = (height + maternal weight + abdominal circumference + uterine fundus height) × 10.
• Jones - PMP = (height of the uterine fundus - 11) × 155. The value 11 is a conditional coefficient for a pregnant woman weighing up to 90 kg.
• Yakubova - PMP = (abdominal circumference + uterine height) × 100/4.

Calculations are made after 38 weeks of pregnancy.

The Family TV channel presented a video about performing an ultrasound in the third trimester.

Fetal fetometry norms by week

Table of approximate norms of fetal development by week.

Tables of norms were created based on world average statistical data on pregnancy and fetal development.

The role of fetometry in assessing fetal development

The parameters and dimensions of the fetus obtained during fetometric analysis allow the doctor to more accurately determine:

• child health (for example, intrauterine growth retardation);
• mother's condition;
• date and outcome of the upcoming birth.

By changing the size of individual organs, the development of syndromes can be detected:

• Down;
• Patau;
• Edwards;
• Smith-Lemli-Opitz;
• Miller-Dicker;
• Williams;
• Angelman.

Is it possible to calculate the height and weight of a child based on ultrasound results?

The height and weight of the embryo is determined by first knowing the following indicators:

• obstetric gestational age;
• head size (BPR, LZR, OG);
• femur length;
• the size of the circumference of the abdomen and chest.

Child height and weight calculator

All expectant mothers worry about the health of their baby. And even when it is in the tummy, they already want to know how it is developing, whether all organs are working normally. Also, most mothers are interested in the height and weight of the future heir. In order to examine a baby in the womb, there are several methods. One of them is fetometry. This word comes from two Greek words “fetus” and “metreo”, literally translated as “offspring” and “to measure”.

In this article you will find a table with fetal fetometry data by week of pregnancy. You will also learn what is special about this research method and how important this procedure is.

In simple terms, fetometry is an ultrasound method that measures the fetus. Usually the head, tummy, chest, hips and the size from the crown to the tailbone are measured. Using fetometry, you can determine how the baby is developing, what the exact gestational age is, and therefore what the exact due date is.

Before presenting ultrasound data, you need to know what specific indicators will be taken into account when making measurements.

• KTR is an indicator of growth. The abbreviation KTP stands for coccyx-parietal size. This indicator allows you to accurately determine the true duration of pregnancy.
• BPR means biparietal head size. During the examination, much attention is paid to the parameters of the head, because the brain plays a huge role in the formation and development of the body. The fetal head is measured from temple to temple, as well as from the forehead to the back of the head, to determine the LZR, that is, the fronto-occipital size. BDP, as well as CTE, is used to determine the duration of pregnancy. Also, biparietal head size is important to determine the possibility of natural childbirth. If the size of the baby’s head is much larger than the size of the birth canal, then you will have to do it.
• DB- This is a measurement of thigh length.
• coolant indicates abdominal circumference. Measurements are taken along the line of the liver, umbilical vein and stomach.
• DHA can be deciphered as the diameter of the chest.

Norms and deviations

• During fetal fetometry are considered the norm parameters that are given in the table below. But sometimes the results of fetometry may not coincide with the data in the table. In this case, there is no need to sound the alarm, because these data are average and therefore relative. In addition, you need to take into account the individual structure of each person. If the parents of the baby are small, then with a high degree of probability the fetus will also be small. This also applies to other parameters, such as chest volume, abdomen and head size. There is also spasmodic, that is, uneven development of the fetus, in which the baby first lags behind in development, and then suddenly reaches all the necessary indicators.
• Anomalies include delayed fetal development (hypotrophy), that is, when the size of the fetus does not meet the norm. This can only be diagnosed by a doctor after carefully studying the test results. It will take into account the functioning of the placenta, the location of the fundus of the uterus and the health status of the expectant mother. We can talk about developmental delay if the identified delay exceeds 2 weeks. In this case, it is necessary to distinguish between symmetrical hypotrophy, when all organs are reduced equally, and asymmetrical: the skeletal system and brain are equally developed, and some organs or organ systems lag behind in development.

Indicators

• First ultrasound carried out no earlier than 11-13 weeks, that is, at the end of the first trimester. Before this period, fetometry is useless, because the fetus is too small. At this stage, they try to identify malformations of the embryo. But with the help of this examination it is impossible to make an accurate diagnosis, you can only determine that there are some deviations from the norm. And based on the screening, the doctor prescribes additional tests that will confirm or refute the presumptive diagnosis.
• Second ultrasound produced in the second trimester from 16 to 20 weeks. The exact date is determined by your gynecologist. The second screening will help to see the dynamics of the child’s development, this is very important, especially with spasmodic growth. If the first time the indicators might have alerted the doctor, now he will see either normal development, or some pathology will be confirmed. As a rule, research in the second trimester is prescribed only to those women who were at risk during the first.
• The third ultrasound is usually scheduled for 32-33 weeks. This time, the ultrasound is done even more carefully, because, firstly, childbirth is approaching, and, secondly, the fetus is already quite developed, and its possible pathologies are easy to determine. Now the child’s face is clearly visible, so it is easy to recognize problems such as a cleft lip or cleft palate.

Fetal fetometry table

I trimester

II trimester

III trimester

The role of ultrasound examinations in assessing the development of the baby

It is difficult to overestimate the role of ultrasound examination in the diagnosis of intrauterine development. Here what data does this procedure provide?:

• Data measuring the child’s body and his limbs, as well as the volume of the chest and head.
• Exact gestational age.
• Detection of pathologies in the early stages and the ability to correct them or, in case of serious problems, artificially terminate the pregnancy to preserve the health and life of the mother.
• In combination with other tests, it will help determine possible diseases of the child.
• Determines the advisability of a cesarean section.

Video

• Few expectant mothers know what kind of examinations need to be taken while carrying a child. One of the most important is screening. During this examination, you need to undergo an ultrasound and donate blood. Find out when it is prescribed and how to prepare for it.
• , as a rule, prescribed in the second trimester.
• The definition is also very important for expectant mothers. This indicator is needed to determine the hormone that is produced in a woman’s body during pregnancy.
• Some mothers are concerned about the safety of ultrasound examinations. We invite you to find out how often you can do an ultrasound during pregnancy so as not to harm you and your baby.

Girls, tell me if you did fetometry. What were your results and did they match the parameters of our table? Do you think this ultrasound helps in identifying or preventing pathologies in babies?