PET scan

What is a PET scan? A PET (positron emission tomography) scan is an imaging test that uses radioactive material to diagnose a variety of diseases. Doctors use it to find tumours, diagnose heart disease, brain disorders and other conditions. A PET scan provides a picture of the body working, not just a picture of its structure, like some other scans. How do PET scans work? If you have a PET scan, you’ll be given an injection of a small amount of short-acting radioactive liquid, known as a tracer. The one most commonly used is FDG (fluorodeoxyglucose). FDG is a simple