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Means ± SDs of tracers’ SUVR values for the investigated ROIs in the respective diagnostic groups; HC, and MCI amyloid-negative (MCI-), MCI amyloid-positive (MCI+) and AD patients. Amyloid positivity has been defined as a CCTXR value above the cut-off points of 1.42 for [11C]PIB and 1.34 for [18F]Florbetapir. The data represented graphically here are tabulated (means ± SDs) in Supplementary Table 2. ([18F]Florbetapir = coral; [11C]PIB = turquoise)
