Positron Emission Tomography (PET) is a nuclear imaging technique that provides insights into the metabolic activity of tissues and organs in the body. This technique involves the use of radiolabeled tracers that emit positrons, allowing for the visualization of physiological processes, which is particularly useful in diagnosing and monitoring diseases such as cancer. The ability to link imaging with therapeutic outcomes aligns PET with theranostic approaches, where diagnosis and treatment are integrated.
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