Fdg avid意思

"FDG avid" is a term used in the field of nuclear medicine and positron emission tomography (PET) imaging. It stands for "fluorodeoxyglucose (FDG) avid." FDG is a radiolabeled glucose analog that is used as a tracer in PET scans to visualize metabolic activity in the body. When a tissue or lesion is said to be "FDG avid," it means that it takes up more FDG than the surrounding normal tissue, indicating increased metabolic activity. This increased uptake can be a sign of disease, such as cancer, infection, or inflammation, and can help doctors to diagnose and monitor these conditions.