PET Scan: MedlinePlus Medical Test

What is a PET scan?

A PET (positron emission tomography) scan is an imaging examination that appears at how effectively your tissues and organs are working. It also checks for symptoms of cancer. The scan works by using a tiny volume of a radioactive compound termed a tracer.

The tracer settles in places of your overall body that have substantial amounts of chemical action. This action can be a sign of cancer or other conditions. The tracer can also aid measure blood circulation, oxygen use, and adjustments in the metabolism of a specific tissue or organ. Metabolism is a chemical method that your overall body works by using to improve foods into strength.

Chemical adjustments in the overall body can display up in advance of indicators of sickness appear. So a PET scan can uncover symptoms of sickness at an early stage, typically in advance of difficulties can be viewed on other imaging checks.

Other names: positron emission tomography