Doctors use medical scans to evaluate everything from head injuries to foot discomfort. Imaging technologies come in a variety of shapes and sizes. Each one functions in a unique way.
Some types of imaging tests use radiation. Others use sound waves, radio waves, or magnets. Learning about how medical scans work can help you feel more comfortable if you or a loved one needs one. It can also help you to know what to ask about before getting an imaging test.
