PET scanning. View of a patient undergoing a Positron Emission Tomography (PET) brain scan,as seen from the radiographer's control room. In the background is the scanner with the patient's head passing into the detector. In the foreground,a radiographer sits at the scanner's computer. On the computer monitor is a coloured image of a "slice" through the patient's brain (active areas are red; inactive are blue). PET scanning shows the metabolic activity of the brain. A radioactive tracer is injected into the patient's bloodstream,and absorbed by active tissues of the brain. Here the brain of a sleeping patient is being scanned,to be compared with the brain of an awake patient | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Morgan, Hank |
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