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Ultrasound is such a device that creates live images of the internal parts of our body and gives it to us. For this he uses sonar and radio technology. Often you must have seen that before doing ultrasound, doctors use a gel on the part whose ultrasound scan is to be taken. Many people will have such questions in their mind that what is this after all. Why is it needed. Can there be no ultrasound without it? Many people also asked this question on the mega website Quora, to which many people answered.
A person named Abhishek told that if you do not use the gel while doing an ultrasound scan, then due to the air between the patient's skin and the probe of the ultrasound machine, there is an obstruction in the waves traveling between them. They do not move easily from one medium to another. In the language of science it is called acoustic impedance. Due to this the waves will return from outside instead of going inside the body or they will go back inside the body. Due to this, the image inside will not be complete and clear.
Eliminates air between the skin and the machine
If you apply gel between the body and the probe while doing an ultrasound scan, it eliminates even the tiniest of air particles that can get between the transducer and the skin. Due to this the possibility of getting air becomes negligible. The acoustic impedance is also less. With this, waves or waves travel comfortably from one medium to another. On hitting any tissue, some waves come back to the probe and some go ahead after hitting. From there, they collide with other tissues or instruments and come back. Due to this, we get to see a good image of the deep parts of the body. The gel allows the transducer to move smoothly while maintaining constant contact between your skin and the sensor.
Absolutely safe for the skin
Now you will say what it is, what is its name. So tell that this gel is mainly made of water and propylene glycol. Many times the question arises whether it is harmful. The answer was given by Rashmi Parikh, consultant radiologist at Balaji Nanavati Hospital in Mumbai. He told that this gel is completely non-toxic, it does not contain any toxic substance in it, so it is absolutely safe for the skin.
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