For the woman the pregnancy begins with emergence of two strips on the test. Understanding of the interesting situation happens a little later, on the first ultrasonography (ultrasonography). For the pregnant woman it is very important to know when it is possible to see future child on ultrasonography and when it is safe to do it.
Ultrasonography – the diagnosing method based on ability of ultrasonic waves to be reflected from different internals differently. This received thus are fixed by the special device which shows them in the form of the picture on the monitor.
Diagnostics ultrasonography accuracy
There are factors on which the accuracy of the conducted research depends: - present and power of the device;
- qualification of the expert - very experienced and competent doctor can pay attention to the slightest changes or aberrations and to give an assessment to these features; - the term of the diagnosed pregnancy.
Originally the equipment was very bulky and issued not absolutely accurate image. Thereof diagnostics was at a loss and led to the false conclusions. The modern equipment has the highest degree of sensitivity allowing to consider on the monitor even mucous membranes of internals
Pregnancy diagnosing terms
In a cavity of uterine tubes there is a fertilization of an ovum, and in a week the germ will already take root into a uterus wall. By the beginning of the second week hardly noticeable hillock which the good doctor of ultrasonography can see is formed. By the end of the second week the germ considerably increases in a size, and its appearance is characteristic of exact diagnostics of pregnancy. If the equipment insufficiently new or the doctor of low qualification and also if there are anomalies in the proceeding pregnancy, can not show to ultrasonography pregnancy. In that case doctors recommend to carry out ultrasonography in two-three weeks after date of the estimated, but not come periods. This moment will be approximately sixth or seventh week of pregnancy. There are cases when monthly are late, presence of symptoms of pregnancy is noted, and ultrasonography does not show existence of fetal egg. Doctors do not recommend to be nervous at the same time, and in seven-ten days to repeat a research. During this period, fetal egg will increase in sizes and it can be considered without problems. If repeated inspection did not yield results, it is necessary to conduct broader research which is directed to an exception of extra-uterine pregnancy. Doctors recommend to undergo ultrasonography inspection in the special facilities conducting work with pregnant women as universal medical institutions often give unreliable information.