Table 3 GSI quantitative parameters for differential diagnosis of glioma recurrence and treatment-related changes
GSI Quantitative Parameters | AUC | Maximum Youden Index | Threshold of Parameters | Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) | Accuracy |
|---|---|---|---|---|---|---|---|---|
Venous phase λHU | 0.912 (0.812,1.012) | 0.667 | 1.03 | 66.7 (56.7,76.7) | 100.0 (90.0,110.0) | 100.0 (90.0,110.0) | 81.8 (71.8.91.8) | 86.7 (76.7,96.7) |
Venou phase Zeff | 0.912 (0.810,1.014) | 0.695 | 7.75 | 91.7 (81.5101.9) | 77.8 (67.6,88.0) | 73.3 (63.1,83.5) | 93.3 (83.1103.5) | 83.3 (73.1,93.5) |
Venous phase Zeff-N | 0.931 (0.843,1.019) | 0.722 | 1.04 | 83.3 (74.5,92.1) | 88.9 (80.1,97.7) | 83.3 (74.5,92.1) | 88.9 (80.1,97.7) | 86.7 (77.9,95.5) |
Venous phase IC | 0.910 (0.810, 1.010) | 0.695 | 2.85 | 91.7 (81.9101.5) | 77.8 (68.0,87.6) | 73.3 (63.5,83.1) | 93.3 (83.5103.1) | 83.3 (73.5,93.1) |