Positron Emission Tomography (PET Scan)

A diagnostic imaging technique that creates pictures of your organs and tissues in action. It involves injecting a safe radioactive substance known as a radiotracer and uses a PET scanner to capture the images. The scanner identifies abnormal cells that take up high levels of the radiotracer, signalling possible health concerns. 

PET scans are commonly used by healthcare professionals to diagnose cancer, monitor cancer treatment progress, and evaluate specific heart and brain conditions. Your healthcare provider may perform a PET scan and CT scan (PET-CT) at the same time. This combination test produces 3D images that allow for a more accurate diagnosis.

The procedure involves injecting a small amount of radioactive tracer, which may cause a brief pinch or mild discomfort, but the scan itself is painless and non-invasive.

PET scans are generally safe with low radiation levels that clears quickly from the body, especially if you drink plenty of water afterward. You should avoid PET scans if you are pregnant, breastfeeding, or allergic to radioactive tracers or contrast dyes. People with diabetes also may not absorb the sugar in the radiotracer, which can affect scan results.