An ultrasound is performed using a handheld device that creates images of the inside of your body. Here's a breakdown of the process:
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An ultrasound scan is performed using a hand-held scanner (transducer) connected to a computer. (Reference)
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High-frequency sound waves are sent into the body from the transducer. (Reference)
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As the sound waves penetrate the tissue and spread, they create echoes. (Reference)
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The echoes are converted to electrical impulses. (Reference)
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These electrical impulses are processed by the computer and displayed as a picture on a screen. (Reference)
In simpler terms, the handheld scanner sends sound waves into your body, and the echoes are used to create an image.