PET CT imaging uses a radioactive tracer called a positron emitter. A small amount of this radiotracer is injected into a patient's vein. Images are then taken to show the distribution of the radiotracer in the body. A PET/CT scanner looks similar to a CT scanner.
A PET/CT scan can be used to examine many pathologies, including:
A PET/CT scan is a safe, non-invasive imaging procedure.
On arrival, you may be asked to change into a gown. The technologist will take a brief medical history and explain the procedure. A cannula is inserted, usually at the elbow, and the radioactive tracer injected.
You'll wait in the uptake room for 45-90 mins before entering the scanner room. There you'll lie on the scanner bed for 20-45 mins as images are taken. You may leave as soon as the scan is complete.
