Parameters | Before adding DWI | After adding DWI | After adding DWI and FLAIR signal |
---|---|---|---|
AUC | 0.706 | 0.780 | 0.819 |
True-positive findings (n) | 10 | 11 | 12 |
False-negative findings (n) | 3 | 2 | 1 |
False-positive findings (n) | 5 | 4 | 4 |
True-negative findings (n) | 9 | 10 | 10 |
Accuracy (%) | 70.4 (19/27) | 77.8 (21/27) | 81.4 (22/27) |
Sensitivity (%) | 76.9 (10/13) | 84.6 (11/13) | 92.3 (12/13) |
Specificity (%) | 64.3 (9/14) | 71.4 (10/14) | 71.4 (10/14) |
Positive predictive value (%) | 66.7(10/15) | 73.3(11/15) | 75 (12/16) |
Negative predictive value (%) | 79.5 (9/12) | 83.3(10/12) | 90.9 (10/11) |
Positive likelihood ratio | 2.15 | 2.96 | 3.23 |
Negative likelihood ratio | 0.36 | 0.21 | 0.11 |