Visual rating | Sensitivity | Specificity | LR+ | LR– | Accuracy |
[11C]PIB | 1.00 (21/21) | 0.85 (17/20) | 6.7 | 0 | 0.93 |
[18F]FDDNP | 0.67 (10/15) | 0.53 (8/15) | 1.5 | 0.6 | 0.60 |
[18F]FDG | 1.00 (21/21) | 0.56 (9/16) | 2.3 | 0 | 0.81 |
Medial temporal-lobe atrophy | 0.71 (15/21) | 0.90 (18/20) | 7.1 | 0.3 | 0.80 |
Numbers in parentheses denote numbers of patients. If sensitivity=1, negative likelihood ratio (LR–)=0; if specificity=1, positive likelihood ratio (LR+)=0.