Table 3.
Discrimination between AD converter and non-converter in MCI by baseline 123I-IMP-CBF SPECT
| Type of analysis | Sensitivity | Specificity | PPV | NPV | Accuracy |
|---|---|---|---|---|---|
| Central image interpretation | 76 % (75/99) | 39 % (44/113) | 52 % (75/144) | 64 % (4 4/68) | 56 % (119/212) |
| Automated ROI analysis | 81 % (80/99) | 37 % (42/113) | 53 % (80/151) | 69 % (42/61) | 58 % (122/212) |
PPV positive predictive value, NPV negative predictive value