Positron emission tomography (PET) scan of the brain (temporal lobe level) of a patient poisoned by carbon monoxide gas. This gas is common in car exhaust fumes. The colour-coded scan through this cerebral layer shows brain activity: from low (blue) to high (yellow). PET scanning relies on an injected radioactive tracer to reveal variations in metabolic activity in the brain. Normal brain activity produces a roughly symmetrical pattern in the yellow areas of left (upper) & right cerebral hemispheres. This scan shows reduced activity in one hemisphere. Carbon monoxide gas deprives brain tissues of oxygen,and may lead to permanent brain damage or even death | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Beddow, Tim |
Taille de l’image : | 5150 px × 3471 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |