Positron Emission Tomography
People also ask
How does a PET scan detect hypermetabolic activity?
A PET scan (positron emission tomography) works to identify areas of hypermetabolic activity anywhere in the body. A radioactive substance is given to the patient and this attaches to glucose, which is attracted to cells that are hypermetabolic.
What does metabolic activity mean on pet?
Subsequently, question is, what does metabolic activity mean? Metabolic activity, as defined by the uptake of 18F-fluorodeoxyglucose (FDG) on positron emission tomography (PET), takes advantage of the physiologic preferential use of anaerobic glycolysis over oxidative phosphorylation used by malignant cells for their energetic needs.
Which metabolic imaging agents are best for PET imaging?
Other metabolic PET imaging agents, such as radiolabeled amino acids, amino acid analogs, and choline have shown promising results in imaging brain tumors, prostate cancer, and other tumors; however, compared to FDG, far less research has been done on these oncological imaging agents.
Why do cancer cells show up on PET scans?
Cancer cells have a higher metabolic rate than noncancerous cells. Because of this high level of chemical activity, cancer cells show up as bright spots on PET scans. For this reason, PET scans are useful both for detecting cancer and for: seeing if the cancer has spread. seeing if a cancer treatment is working.