Ultrasound, ultrasound, is one of the most interesting studies for pregnant women, which allows you to see with your own eyes your baby, make sure that everything is all right with a crumb that the baby feels well.
However, ultrasound, as a method of research, frightens some mothers, especially when it is necessary to do ultrasound more times than required in a well-flowing pregnancy. In fact, ultrasound during pregnancy is a safe study, and it needs to be done exactly as many times as your doctor prescribes.
However, from time to time there are hypotheses that tell about the possible negative effect of ultrasound on the fetus in the early stages of pregnancy. Despite the fact that such hypotheses have not received scientific confirmation, modern doctors do not risk sending women to ultrasound up to 10-12 weeks. Do not forget that ultrasound is a kind of physical energy, and therefore, even with proven ultrasound safety, with increasing time and force of impact, it may be a question of increasi
Why did we decide to write this? Not in any way to intimidate expectant mothers, but just to warn - remember that ultrasound is a highly informative and highly effective method of research, but in no case an entertaining procedure for - and it is not worth every week to go to the officeUltrasound to admire your baby: ultrasound is performed only on certain dates and only as directed by the doctor.
When it is necessary to do ultrasound
In Russia, and in the world practice, there are screening terms for ultrasound. For the first time during pregnancy, ultrasound is performed at the 10th-13th week. The second time you visit the ultrasound diagnostics doctor's office, you will be at the 20-24th week of pregnancy. And, finally, the final ultrasound is carried out on the 30-34th week. These terms are chosen not by chance - it is at these weeks that you can conduct the most informative ultrasound study. Mandatory terms are fixed in the order of the Ministry of Health.
As a rule, ultrasound is carried out in the women's consultation, in which a woman during pregnancy is observed. In those cases, if there is a suspicion of malformations of the fetus, on genetic pathology, a woman will be referred for ultrasound to the medical genetic center.
If it is a question of ultrasound in the screening time or about ultrasound, appointed for certain indications, the study should be conducted completely free of charge. If it is a question of research not in screening terms, in the absence of any indication, but is carried out only at the desire of the future mother, then the doctor has the right not to send his patient to a free ultrasound. I'll have to get my wallet and go to paid ultrasound.
It should also be noted that in most women's clinics, an ultrasound scan is carried out for 2-3 weeks, so it is necessary to register for ultrasound in advance, as well as on time to register with a women's consultation.
Ultrasound in early
Many women decide to go for ultrasound immediately after they see a positive result of a pregnancy test. On ultrasound, pregnancy can be seen no earlier than after a week of delay in menstruation - this is the fifth week of pregnancy for the obstetric calendar. Such ultrasound shows only the presence of a fetal egg( that is, confirms or refutes the fact of pregnancy), also the location of the egg. Sometimes ultrasound at this time can diagnose twins.
If you decide to go for ultrasound on the 7-8th week of pregnancy, you will already see the fetal heartbeat.
Until the first screening ultrasound( i.e., before 1-13 weeks of pregnancy), ultrasound is recommended only if there is a high risk of ectopic pregnancy, if there have been miscarriages earlier, if the pregnancy did not occur for a long time, but occurred as a result of IVF orstimulation of the ovaries. In addition, you can go to ultrasound before the tenth week of pregnancy if you are concerned about spotting or pain.
Ultrasound at 10-13 weeks of gestation
In an ultrasound study conducted at 10-13 weeks of pregnancy, you can accurately locate the location of the fetal egg, as well as count the number of fetal eggs. At this time, the doctor can identify a threat of miscarriage, ectopic pregnancy, frozen pregnancy, a bubble drift.
Also at this time you can accurately determine the duration of pregnancy.
The doctor will be able to measure the thickness of the collar space at the time of 10-13 weeks of pregnancy, which should normally be less than 3 mm. If the received indicators do not correspond to the norm, you should be alert - maybe it will be a genetic pathology. If the doctor diagnoses the lack of visualization of the nose bone, it can also signal a genetic pathology - Down's syndrome. At this time, the absence of a fetal brain can be determined.
The revealed gross pathologies in the first trimester of pregnancy allow, if necessary, to assign additional studies, as well as to decide the question of the advisability of further bearing of the baby.
Ultrasound at 20-24 weeks of gestation
This period is the most informative for determining the developmental defects of the fetus. The doctor will be able to assess the anatomy of almost all the systems and organs of the baby. But, unfortunately, we are not talking about a 100% diagnosis of vices.
It is now possible to determine the location of the placenta, however, with the course of pregnancy, it can still be changed.
You can see the sex of the child from 15-16 weeks, so on this ultrasound, if you want, you can find out who you are waiting for, unless the child decides to hide his sexual identity from you and closes his / her sexual organs.
The doctor must evaluate the length of the cervical canal and the state of the uterine neck.
Ultrasound at 32-34 weeks of gestation.
In this ultrasound study, a physician can identify a child developmental delay syndrome. It is already possible to calculate the approximate weight of the fetus. As a rule, the lag in the size of the child from the norm by the terms is determined by fetoplacental insufficiency, although sometimes small sizes are simply an individual feature of the fetus. If there is a suspicion of a delay in development, repeated ultrasound is performed in a couple of weeks. If the difference in size compared to the standards has become even more pronounced - this is an unfavorable sign.
Also at this time the condition of the placenta is determined: the degree of its maturity, the thickness.
By this time, the fruit usually takes a stable position. The doctor can also reveal a crochet around the neck of the baby's umbilical cord - but the child can still unwind during childbirth.
The amount of amniotic fluid is also estimated. Abnormalities can be regarded as signs of a child's genetic pathology or infection, although such abnormalities are possible even in the normal course of pregnancy.
Well, at last, on this research conduct a dopplerometry, that is, determine the speed of blood flow in the vessels of the uterus and the umbilical cord: blood flow disorders, as a rule, lead to fetal hypoxia, and therefore it is so important to diagnose them in time.
Summing up all the above, I want to note that ultrasound is a very effective method of research, so do not miss visiting ultrasound doctors, but every week to see how the baby "grew and got prettier" is also not necessary.