Ultrasound is a convenient, inexpensive and informative method of medical imaging.. Its principle is to use ultra high frequency sound waves. A special device (transducer) sends sound waves to the desired direction of the body. Each tissue has its own density, and therefore transmits or reflects ultrasound in its own way.. The reflected sound wave is returned to the transducer, after which the sound is converted into an image and displayed on the monitor screen..
Ultrasound examination has found the widest application in medicine, and is used to diagnose almost all organs and tissues, as well as to examine the fetus during pregnancy.. In the past few years, information has begun to appear that ultrasound has a harmful, traumatic effect on the fetus, and therefore the question of the possible danger of ultrasound is quite acute.. Let's try to figure it out.
Indeed, ultrasound can be used as a weapon. In this capacity, for example, it is used by dolphins and killer whales.. By emitting ultrasonic waves of a certain frequency, they stun and disorient fish, which become easy prey, and sometimes even kill them in this way.. In addition, ultrasound is also used in industry, including for the processing of hard surfaces - naturally, the impact force is enormous, and if granite can be processed, then what can we say about soft tissues.
It's actually not all that scary.. Ultrasound uses sound vibrations that are not at all the strength used by dolphins or builders. In the case of the impact of any physical factor on the body, the decisive condition is the strength of this action.. Compare the pleasant warmth of a relaxing bath to the burn of a steam jet, or the light of the morning sun to the effect of a laser surgery machine..
One and the same physical phenomenon - heat in the first case, and light in the second, but what different effects.
Despite the fact that the level of sound vibrations that are used for ultrasound diagnostics is completely harmless to the body, in medicine this, and other methods, are used with caution.. Without special need, no one will ever prescribe an ultrasound, especially during pregnancy..
Going for an ultrasound, you can be completely calm - this is a meek ultrasound, put at the service of health.
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