A PET scan is often used to help determine a cancer diagnosis. A positron emission tomography (PET) scan uses a tracer with low levels of radiation to find places in your body where cells are ...

Preparing for a PET scan requires switching to a no-sugar diet the day before the scan. People with diabetes may have special instructions regarding medications. Doctors typically schedule PET scans ...

A positron emission tomography (PET) scan is a diagnostic tool that examines body tissue functioning, such as blood flow, oxygen use, and sugar metabolism, to help doctors diagnose and treat disease.