Table 4.
ROC analysis of Type-4 normalized APT-w contrast corresponding to ROI-2 to differentiate low grade glioma (LGG) and infective mass lesions.
| HP | p value (post hoc) | Sensitivity (%) | Specificity (%) | AUC (lb, ub) (%) | cut-off (%) | Accuracy (%) |
|---|---|---|---|---|---|---|
| mean | 0.04 | 62.5 | 71.43 | 73.21(51, 95) | 4.77 | 68.18 |
| SD | 0.04 | 87.5 | 50 | 71.4(46, 96) | 0.58 | 81.81 |
| median | 0.05 | 62.5 | 71.43 | 74.1(53, 95) | 4.68 | 68.18 |
| mtop10 | 0.04 | 62.5 | 71.43 | 73.2(51, 95) | 4.39 | 68.18 |
| mtop25 | 0.03 | 87.5 | 57.14 | 75(54, 96) | 4.46 | 68.18 |
| mtop50 | 0.02 | 75 | 71.43 | 76.8(56, 97) | 5.21 | 72.72 |
| mtop75 | 0.01 | 75 | 71.43 | 75.9(55, 96) | 5.60 | 72.72 |
| mtop90 | 0.01 | 75 | 71.43 | 75(53, 96) | 5.78 | 72.72 |
| sdtop25 | 0.03 | 62.5 | 78.57 | 71.4(45, 97) | 0.64 | 72.72 |
AUC – area under curve;
lb and ub are lower and upper bound with 95% confidence interval;
HP -histogram parameters