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Then, what does FDG activity mean?
Radiolabeled[18F]-2-fluoro-2-deoxy-D-glucose(FDG)is a glu. cose analogue widely used to study tumor metabolism by. means of positron emission tomography(PET). Little is known. about the effect of hyperglycemia on FDG uptake and PET.
Secondly, what does increased FDG avidity mean? FDG-positive lesions often mean cancer, but not always. A variety of lesions have increased FDG radiotracer including infection, inflammation, autoimmune processes, sarcoidosis, and benign tumors.
Also question is, what is FDG activity on PET scan?
A PET scan uses a small amount of a radioactive drug, or tracer, to show differences between healthy tissue and diseased tissue. The most commonly used tracer is called FDG (fluorodeoxyglucose), so the test is sometimes called an FDG-PET scan. Before the PET scan, a small amount of FDG is injected into the patient.
What is physiologic FDG avidity?
FDG will localise to any part of the body where there is high physiologic activity. Basic to the proper interpretation of PET CT scans is a clear understanding of the normal variants of uptake and awareness of the benign processes that are FDG avid to avoid potential pitfalls in image interpretation.