Patient undergoing a brain PET scan

Patient undergoing a brain PET scan

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Caption: PET scan. Technician studying a positron emission tomography (PET) scan of a patient's brain. This is a technique used to detect areas of abnormal activity in the body. The result of one scan is seen on the monitor at centre left. The brain shows an area of high activity in the left frontal lobe (red). Prior to the scan, radioactive glucose is injected into the bloodstream. The PET scanner detects this, and builds up a picture of glucose concentration, and thus metabolic activity, in the scanned area. This is particularly useful in detecting brain tumours, which show a marked difference in activity to healthy brain tissue.

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Keywords: biopsy, brain, brain biopsy, brain scan, diagnostic, diagnostics, equipment, healthcare, medical, medicine, neuroimaging, neurosurgery, on vdu, patient, pet, pet scan, pet scanner, scanner, technique

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