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Positron Emission Tomography (PET)
Positron emission tomography (PET) is a neuroimaging technique in which a small amount of short-lived radioactive tracer is injected into the body and a scanner is used to determine where in the body the tracer is being metabolized. PET can be used to look at metabolic activity in the brain and determine the source of seizure activity (often an area of reduced metabolism in comparison to surrounding tissue) in preparation for seizure surgery.