PET uses a radioactive tracer to detect glucose and oxygen metabolism,as well as cerebral blood flow.

Name: PET uses a radioactive tracer to detect glucose and oxygen metabolism,as well as cerebral blood flow.
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PET scans do use a radioactive tracer, typically a form of glucose, to measure metabolic activity in certain tissues, including the brain. By detecting uptake of the tracer, PET can indirectly measure glucose and oxygen metabolism, as well as blood flow to the area.

PET Uses a Radioactive Tracer to Detect Glucose and Oxygen