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Different ROI's ROC results for inhomogeneity of ADC for glioma grading (high vs. low).
| ROI's inhomogeneity | ||
|---|---|---|
| Characteristic | Whole tumor | Solid portion |
| AUC | 0.968 (0.901, 0.998) | 0.852 (0.809, 0.895) |
| Sensitivity (%) | 0.944 (17/18) | 0.833 (15/18) |
| Specificity (%) | 0.916 (11/12) | 0.833 (10/12) |
| Accuracy (%) | 0.933 (28/30) | 0.833 (25/30) |
| Cut off value | >0.216 | >0.202 |
| P-value for | <0.001 | 0.001 |
| ROC curve | ||
ROI, regions of interest; ADC, apparent diffusion coefficient; ROC, receiver operating characteristic.
