Table 3.
Diagnostic performance for discriminating GBM from atypical PCNSL based on different models.
| Models | AUC (95% CI) | Sensitivity (%) | Specificity (%) | Cutoff |
|---|---|---|---|---|
| ADCmin ( × 10−3 mm2/s) | 0.746 (0.672 to 0.811) | 91.6 | 53.7 | >0.692 |
| ADCmean ( × 10−3 mm2/s) | 0.826 (0.759 to 0.881) | 63.8 | 88.8 | >0.871 |
| rADC | 0.792 (0.721 to 0.851) | 89.8 | 59.3 | >1.136 |
| rCBVmean | 0.862 (0.799 to 0.911) | 98.1 | 59.2 | >2.719 |
| rCBVmax | 0.905 (0.849 to 0.946) | 67.5 | 98.1 | >5.830 |
| FA | 0.817 (0.749 to 0.874) | 53.7 | 98.1 | >0.188 |
| DA | 0.815 (0.746 to 0.871) | 97.2 | 46.3 | >0.911 |
| DR | 0.820 (0.752 to 0.876) | 70.3 | 75.9 | >0.902 |
| Cho/Cr | 0.811 (0.742 to 0.868) | 94.4 | 64.8 | ≤1.287 |
| Lip/Cr | 0.799 (0.729 to 0.858) | 57.4 | 90.7 | >4.950 |
| DWI | 0.900 (0.843 to 0.941) | 64.8 | 98.1 | / |
| DSC | 0.931 (0.881 to 0.965) | 93.5 | 75.9 | / |
| DTI | 0.958 (0.914 to 0.983) | 86.1 | 92.5 | / |
| MRS | 0.884 (0.825 to 0.929) | 65.7 | 94.4 | / |
| DWI + DSC | 0.975 (0.938 to 0.993) | 93.5 | 94.4 | / |
| DWI + DTI | 0.980 (0.944 to 0.995) | 93.5 | 94.4 | / |
| DWI + MRS | 0.974 (0.936 to 0.993) | 89.8 | 94.4 | / |
| DSC + DTI | 0.992 (0.962 to 1.000) | 93.5 | 98.1 | / |
| DSC + MRS | 0.984 (0.951 to 0.997) | 96.3 | 92.5 | / |
| DTI + MRS | 0.985 (0.952 to 0.998) | 94.4 | 92.5 | / |
Abbreviations: AUC, area under the curve; 95% CI, 95% confidence interval.
Notes: DWI includes the parameters ADCmin, ADCmean, and rADC; DSC comprises the metrics rCBVmean and rCBVmax; DTI includes FA, DA and DR; MRS comprises the ratios Cho/Cr and Lip/Cr.