Positron Emission Tomography (PET) uses radioactive tracers to visualize metabolic and physiological processes in the body.
During a PET scan, a radioactive tracer is injected into the bloodstream, where it accumulates in tissues of interest.
PET scanners detect gamma rays emitted by the tracer, producing detailed images of metabolic activity and function.
PET is used to diagnose cancer, evaluate neurological disorders, and assess cardiac function, among other applications.
While PET involves exposure to radiation, the diagnostic benefits often outweigh the risks when medically necessary.