Which imaging method shows brain activity by detecting radioactive glucose?

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Multiple Choice

Which imaging method shows brain activity by detecting radioactive glucose?

Explanation:
PET imaging reveals brain activity by tracking radioactive glucose uptake. A radiolabeled glucose analog is injected, and active brain regions use more glucose, so they accumulate more tracer. The PET scanner detects the emitted radiation and creates a map of metabolic activity, showing which areas are most active during tasks or in different states. This focus on metabolism makes PET different from CT or MRI, which emphasize anatomy, and from EEG, which measures electrical activity rather than metabolic processes.

PET imaging reveals brain activity by tracking radioactive glucose uptake. A radiolabeled glucose analog is injected, and active brain regions use more glucose, so they accumulate more tracer. The PET scanner detects the emitted radiation and creates a map of metabolic activity, showing which areas are most active during tasks or in different states. This focus on metabolism makes PET different from CT or MRI, which emphasize anatomy, and from EEG, which measures electrical activity rather than metabolic processes.

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