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Alzheimer's disease, SPECT brain scan

Alzheimer's disease, SPECT brain scan

M108/0662

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Credit

INSTITUT PAOLI-CALMETTES, ISM / SCIENCE PHOTO LIBRARY INSTITUT PAOLI-CALMETTES, ISM / SCIENCE PHOTO LIBRARY

Caption

Alzheimer's disease, coloured SPECT scan. This is a top view of the head, with the front at top. SPECT (single positron emission computed tomography) uses a radioactive isotope, in this case technetium-99m (Tc-99m) to show the activity of brain tissue, active tissue taking up more. Alzheimer's disease is a wasting disease of brain tissue, causing progressive dementia. Brain activity is colour-coded, from red (most active) through yellow to green (least active). The most affected area is the black/green region at lower centre, in the temporal and parietal lobes. These are responsible for language skills, recognition and processing sensory information. For a similar scan of a healthy brain, see P332/430.

Release details

Model release not required. Property release not required.

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