Ultrasound imaging, also known as sonography, is a method of obtaining images from inside the human body through the use of high frequency sound waves. The sound waves' echoes recorded and displayed as a real-time, visual image.
Because the body contains over 90% water, sound waves can be used in some parts of the body just as sonar is used in the ocean. Each time the sound hits a tissue interface, like a blood vessel, an echo is sent back. Sophisticated, high-speed computers can use these echoes to create a picture of your internal organs. An ultrasound examination is fast, with very little discomfort. No radiation or x-rays are necessary.
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