Medicina Nuclear e Radioterapia

Radioactive Tracers for Medical Diagnostics: A Nuclear Medicine Perspective

Abstract

Luis Royal

Radioactive tracers, or radiopharmaceuticals, are compounds containing a small amount of a radioactive isotope. These tracers emit gamma rays, which can be detected by specialized imaging devices. The unique properties of these tracers make them powerful tools in medical diagnostics, offering insights into the function, structure and metabolism of organs and tissues. Unlike traditional imaging methods that focus on anatomy, nuclear medicine primarily provides functional information. Radioactive tracers can be designed to target specific tissues or organs based on their physiological characteristics. This targeted approach enhances the specificity of diagnostic imaging, providing detailed information about the area of interest. Radiopharmaceuticals are used to detect abnormalities or changes in the function of organs and tissues. This is particularly valuable in early disease detection, often before structural changes are apparent through other imaging modalities.