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Posted by Jennifer Gerics May 21, 2008 |
Ultrasound has been around for a while and is used for diagnostic imaging, much like X-rays. But unlike X-rays, ultrasound produces no harmful radiation. Rather, high-frequency sound is sent out into the body, is intercepted by body parts, and is sent back to the ultrasound machine, producing an image. This process is comparable to sonar. These "echoes" are what produce the ultrasound picture, and through the science of physics, different levels of clarity can be achieved: magnified, high-resolution images and broad, general images.