Table 1. Diagnostic performance of different sequences by Reader 1.
| MR sequences | TP | TN | FP | FN | Sensitivity(%) | Specificity(%) | PPV (%) | NPV (%) |
|---|---|---|---|---|---|---|---|---|
| 3D CE T1-SPACE | 18 | 39 | 2 | 4 | 81.82(58.99–94.01) | 95.12(82.19–99.15) | 90.00(66.87–98.25) | 90.70(76.95–96.98) |
| 2D FLAIR | 15 | 37 | 4 | 7 | 68.18(45.12–85.27) | 90.24(75.94–96.83) | 78.95(53.90–93.03) | 84.09(69.33–92.84) |
| 2D CE T1-GRE | 12 | 38 | 3 | 10 | 54.55(32.67–74.93) | 92.68(78.99–98.09) | 80.00(51.37–94.69) | 79.17(64.60–89.04) |
TP refers to true positive; TN, true negative; FP, false positive; and FN, false negative. CE refers to contrast-enhanced. 95% confidence intervals were expressed within parenthesis.