PET (Positron Emission Tomography)

Positron Emission Tomography (PET) is a medical imaging technique that shows how tissues and organs function by detecting tiny amounts of radioactive tracers injected into the body. These tracers emit positrons, which collide with electrons, producing gamma rays. The PET scanner captures these gamma rays to create detailed images of cellular activity, making it useful for diagnosing diseases like cancer, heart problems, and brain disorders. Unlike standard scans that show structure alone, PET provides insights into the body's metabolic and biochemical processes, helping doctors understand how organs are working in real time.