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Alzheimer's disease, SPECT brain scan

Alzheimer's disease, SPECT brain scan

M108/0661

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Credit

ISM / SCIENCE PHOTO LIBRARY ISM / SCIENCE PHOTO LIBRARY

Caption

Alzheimer's disease, coloured SPECT scan. This is a side view of the head, with the front at right. 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 here, from red (most active) through yellow to green (least active). The most affected area is the yellow break in the red region at the front of the brain.

Release details

Model release not required. Property release not required.

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