Coloured PET scan of a brain in AIDS dementia

Coloured PET scan of a brain in AIDS dementia

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Credit: DEPT. OF NUCLEAR MEDICINE, CHARING CROSS HOSPITAL/SCIENCE PHOTO LIBRARY

Caption: AIDS dementia. Coloured Positron Emission Tomo- graphy (PET) scan of an axial section through the brain of an AIDS patient, suffering dementia. At top is the affected brain showing cerebral (red) atrophy, a shrinking of the brain associated with loss of function and symptoms of dementia. At bottom is a healthy brain for comparison. The on- set of dementia in AIDS (Acquired Immunodeficiency Syndrome) is often subtle, with short-term memory loss. The HIV virus causing AIDS can be found in spinal fluid. PET scanning uses a radioactive tracer (for example, oxygen-15) injected into the blood, and detected by a PET scanner.

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Keywords: acquired immune deficiency, aids, aids dementia, atrophy, brain, brain scan, cerebral atrophy, condition, dementia, disease, disorder, healthcare, medical, medicine, neuroimaging, pet scan, syndrome

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