A PET scan is a shortened name for positron emission tomography. A PET scan views functioning tissues in the body. A CT or CAT scan is a shortened name for computerized tomography. A CT scan takes pictures of the inside of the body. The pictures are more detailed than a typical x-ray. A PET scan combined with a CT scan shows detailed images and functioning tissues within the body. A PET/CT scan can help determine a diagnosis early. Your doctor will use this information to determine the best treatment for you.
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