What is Positron Emission Tomography (PET) and its application in cancer?
PET imaging involves the use of radioactive tracers to visualize metabolic processes in the body. When combined with CT (as in PET-CT), it provides both functional and structural information, which can be critical in assessing the metabolic activity of cancer cells and in detecting metastasis. PET scans are particularly valuable for identifying cancers of the lung, lymphoma, and melanoma.