Several types of radioactive tracers are commonly used in cancer diagnosis: - Fluorodeoxyglucose (FDG): This is the most common tracer used in PET scans. It mimics glucose, a sugar that cells use for energy, and is particularly useful for identifying highly active cancer cells. - Technetium-99m (Tc-99m): Used in SPECT scans, Tc-99m is versatile and can be combined with different compounds to target specific organs or types of cancer. - Gallium-68: Often used for neuroendocrine tumors and prostate cancer imaging.
