Lewy body dementia, SPECT brain scans

Lewy body dementia, SPECT brain scans

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Caption: Lewy body dementia. Coloured single photon emission computed tomography (SPECT) scans of axial sections through the brain of a patient with Lewy body dementia (LBD). LBD shares symptoms with both Alzheimer's disease and Parkinson's disease, including fluctuating confusion, muscle rigidity and hallucinations. Lewy bodies are lesions of damaged nerve cells and protein deposits. The scans show areas of low blood flow (blue and black) around the occipital lobe (bottom of brain), the area responsible for visual processing. There is no cure for the condition. SPECT scans use gamma cameras to detect radioactive tracers, injected into the blood, that accumulate in areas of high metabolic activity.

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