A PET-CT scan combines a CT scan and a PET scan. It gives detailed information about your cancer. The CT scan takes a series of x-rays from all around your body and puts them together to create a 3 dimensional (3D) picture. The PET scan uses a mildly radioactive drug to show up areas of your body where cells are more active than normal. You usually have a PET-CT scan in the radiology department as an outpatient. A radiographer operates the scanner. It usually takes between 30 and 60 minutes. These scanners tend to be available only in the major cancer hospitals. So you might have to travel to another hospital to have one. PET-CT scans are for many types of cancer. They are generally thought to be more accurate in diagnosing cancer than PET or CT scans alone. PET-CT scans can help to diagnose and stage and check and treat cancer.
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