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• W2084166648 abstract "This article reviews recent developments in the field of amyloid imaging using PET, specifically the ability to quantify the amount and distribution of brain beta-amyloid, the protein that occupies a central position in leading theories of the pathogenesis of Alzheimer's disease.Several imaging-disorder correlations place the technique itself on a stronger footing by showing good agreement between in-vivo and histological measures of beta-amyloid deposition. Correlations between beta-amyloid and other measures of dementia - cognition, brain atrophy, and glucose metabolism - appear to support a view that beta-amyloid triggers a host of downstream alterations that are closely related to dementia severity and progression. However, associations between PET measures of beta-amyloid and cognition are generally fairly weak. The implications for clinical use are still uncertain. It seems likely that amyloid imaging will be useful for differentiating dementias associated with beta-amyloid from those that are not, but the utility of this approach will depend on the availability of effective beta-amyloid-directed treatments. Similarly, amyloid imaging offers the potential for predicting which nondemented individuals will eventually develop Alzheimer's disease, although here again the measurement of downstream beta-amyloid effects may be important.The ability to quantify the onset and progression of beta-amyloid disorder in the brain offers the potential for investigating a host of questions concerning individual and neural vulnerability and the amyloid hypothesis of Alzheimer's disease itself. These findings will have important basic and clinical implications." @default.
• W2084166648 created "2016-06-24" @default.
• W2084166648 creator A5061269385 @default.
• W2084166648 date "2009-08-01" @default.
• W2084166648 modified "2023-09-25" @default.
• W2084166648 title "Mapping brain β-amyloid" @default.
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• W2084166648 doi "https://doi.org/10.1097/wco.0b013e32832d93c7" @default.
• W2084166648 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/2882160" @default.
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