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How is it done?

Written by : DoctorNDTV Team

In this technique, high frequency sound waves are used to produce an image, representative of the part that needs to be studied. An gel is spread over the skin on the area to be studied. A hand held instrument called a transducer is passed over the surface of interest. It emits high frequency sound waves and collects the reflections from the internal organs. The computer compiles this information into a picture on a video screen and this is simultaneously recorded on a film. After the scanning the gel is wiped off.

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