Table 5 Average values of cut off, sensitivity, specificity and accuracy of DSC-MRI and FDG-PET studies in the diagnosis of AD and MCI
Compared groups | Parameter | Cut-off | Sensitivity | Specificity | Accuracy |
|---|---|---|---|---|---|
MCI vs CG | rCBV | 1.1 | 0.57 | 0.80 | 0.68 |
rCBV z-score | 0 | 0.76 | 1.00 | 0.77 | |
PET z-score | 0 | 0.95 | 1.00 | 0.95 | |
AD vs CG | rCBV | 1.01 | 0.94 | 0.93 | 0.95 |
rCBV z-score | 0 | 0.98 | 1.00 | 0.98 | |
PET z-score | 0 | 0.97 | 1.00 | 0.97 | |
AD vs MCI | rCBV | 1.01 | 0.66 | 0.94 | 0.84 |
rCBV z-score | 1.13 | 0.66 | 0.94 | 0.84 | |
PET z-score | 1.34 | 0.82 | 0.77 | 0.81 |