What is fdg uptake?

FDG uptake refers to the amount of fluorodeoxyglucose (FDG) that is absorbed by certain tissues in the body, particularly cancerous or inflammatory tissues. FDG is a radioactive glucose analogue that is commonly used in positron emission tomography (PET) scans to help detect and locate abnormalities in the body such as tumors, infections, or inflammation.

High FDG uptake in a certain tissue typically indicates increased metabolic activity, which can be a sign of cancer or inflammation. The intensity and pattern of FDG uptake can vary depending on the type of tissue or condition being examined.

FDG uptake is measured and quantified using standardized uptake values (SUVs), which help to compare FDG uptake between different patients and scans. A higher SUV typically indicates higher metabolic activity and is often associated with more aggressive or advanced disease.

Overall, FDG uptake is a valuable tool in the diagnosis, staging, and monitoring of various diseases, particularly cancer. It provides important information about the metabolic activity of tissues and can help guide treatment decisions.