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• W1973670369 abstract "The objective of this study was to evaluate the relationship of amyloid burden, as assessed by florbetapir F 18 ((18)F-AV-45) amyloid positron emission tomography, and cognition in healthy older control (HC) subjects. Seventy-eight HC subjects were assessed with a brief cognitive test battery and positron emission tomography (PET) imaging with (18)F-AV-45. A standard uptake value ratio was computed for mean data from 6 cortical regions using a whole cerebellum reference region. Scans were also visually rated as amyloid positive or amyloid negative by 3 readers. Higher standard uptake value ratio correlated with lower immediate memory (r = -0.33; p = 0.003) and delayed recall scores (r = -0.25; p = 0.027). Performance on immediate recall was also lower in the visually rated amyloid positive compared with amyloid negative HC (p = 0.04), with a similar trend observed in delayed recall (p = 0.06). These findings support the hypothesis that higher amyloid burden is associated with lower memory performance among clinically normal older subjects. Longitudinal follow-up is ongoing to determine whether (18)F-AV-45 may also predict subsequent cognitive decline." @default.
• W1973670369 created "2016-06-24" @default.
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• W1973670369 date "2013-03-01" @default.
• W1973670369 modified "2023-10-14" @default.
• W1973670369 title "Amyloid deposition detected with florbetapir F 18 (18F-AV-45) is related to lower episodic memory performance in clinically normal older individuals" @default.
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• W1973670369 doi "https://doi.org/10.1016/j.neurobiolaging.2012.06.014" @default.
• W1973670369 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/3518678" @default.
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