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PET Scan: MedlinePlus Medical Test

What is a PET scan?

A PET (positron emission tomography) scan is an imaging test that looks at how properly your tissues and organs are working. It also checks for indicators of cancer. The scan works by using a smaller amount of a radioactive material identified as a tracer.

The tracer settles in locations of your entire body that have significant levels of chemical exercise. This exercise can be a indicator of cancer or other illnesses. The tracer can also assistance measure blood flow, oxygen use, and changes in the metabolism of a specific tissue or organ. Metabolic process is a chemical system that your entire body works by using to alter food items into electrical power.

Chemical changes in the entire body can clearly show up ahead of indications of sickness show up. So a PET scan can locate indicators of sickness at an early stage, typically ahead of difficulties can be noticed on other imaging checks.

Other names: positron emission tomography