Alzheimer's and normal brain scans

Alzheimer's and normal brain scans

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Credit: BSIP, CAVALLINI JAMES/SCIENCE PHOTO LIBRARY

Caption: Alzheimer's disease. Coloured gamma scans of the brains of a healthy person (top two) and a patient suffering from Alzheimer's disease (bottom two). Alzheimer's is a condition in which the brain becomes atrophied (wasted). The areas of atrophy are seen as the large dark patches in the two lower scans. It causes personality changes, memory loss and confusion. It is common in the elderly, affecting as many as one in three people over the age of 85. There is no cure, and death occurs after several years of decline. Gamma cameras detect radioactive tracers injected into the patient to show an organ's activity.

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Keywords: affected, alzheimer's, alzheimer's disease, atrophy, brain scan, cerebral, cns, comparing, comparison, degeneration, diagnosis, diagnostic, diseased, disorder, elderly, gamma camera, healthy, horizontal, nerves, nervous, neuroimaging, normal, old, scintigram, scintigraphy, senile dementia, system, tissue, wasting

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