Diagnostic performances of the ADC1000 and ADCratio
| Cutoff Valuea | Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) | Accuracy (%) | |
|---|---|---|---|---|---|---|
| ADC1000 | 1.460 × 10−3 mm2/s | 85.0 (17/20) | 84.6 (11/13) | 89.5 (17/19) | 78.6 (11/14) | 84.8 (28/33) |
| ADCratio | 62.6% | 95.0 (19/20) | 69.2 (9/13) | 69.6 (16/23) | 90.0 (9/10) | 84.8 (28/33) |
Note:—Raw data are in parentheses. NPV indicates negative predictive value; PPV, positive predictive value.
↵a Receiver operating characteristic curves were drawn to find the optimal cutoff values for the ADC1000 and ADCratio.