Ultrasound- this paper is on the different kinds of utrasound, the many uses of ultrasound and the dangers. there is a Bibliography

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Ultrasound is an imaging technique that uses higher(prenominal) relative frequency sound shake and echoes. There be different kinds of ultrasound they are placoid image, 3D ultrasound imagining, and Doppler ultrasound.

Doppler ultrasound is based on the Doppler act. (Doppler effect is whenever relative motion exists between a source of sound and a listener and the frequency of the sound heard by the listener sounds different compared to the frequency when there is no motion.) The frequency of the echoes depend on how the object reflecting the ultrasound waves is moving. If it is a high frequency then it is moving toward the probe and if it is a subvert frequency it is moving away from the probe. How much the frequency changes depends on how fast the object is moving. TO calculate how fast and object is moving, Doppler ultrasounds broadside the change in frequency of the echoes. Doppler ultrasound is used to footprint the rate of blood flow through the heart and major arteries.

In 3D ultrasound imaging the 3D ultrasound weapon takes many dickens-dimensional images and puts them to shither to get a 3D image. 3D-ultrasound imaging is used to get a better ascertain at organs.

Ultrasound is used in obstetrics, gynecology, cardiology, and cancer detection. Ultrasounds main expediency is that it can be used without using radiation.



It can in any case be done quicker than X-rays or other radiographic techniques.

There are some concerns about the safety of ultrasound. There are a few reports of low birth weight babies being born to mothers who had many ultrasound examinations during pregnancy. There are two possibilities with ultrasound and they are...

1. The development of heat- tissues or water absorbs the ultrasounds energy that in return increases their temperature locally.

2. The formation of bubbles- when the liquefied gases come out...

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