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| T1 |
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| T2 |
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| T3 |
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| T4 |
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| Water (n = 2) | Contrast (n = 1) | p value | Water (n = 8) | Contrast (n = 5) | p value | Water (n = 22) | Contrast (n = 30) | p value | Water (n = 17) | Contrast (n = 15) | p value |
| Accuracy (%) | 83.8 | 90.1 | 0.169 | 83.8 | 95.8 | 0.014 | 83.8 | 78.9 | 0.27 | 89.2 | 80.3 | 0.118 |
| Sensitivity (%) | 14.3 | 22.2 | 0.162 | 100 | 66.7 | 0.000 | 78.6 | 92.6 | 0.016 | 78.6 | 60.7 | 0.028 |
| Specificity (%) | 100 | 100 | - | 82.9 | 98.5 | 0.001 | 87 | 70.5 | 0.026 | 95.7 | 93 | 0.288 |
| PPV (%) | 100 | 100 | - | 25 | 80 | 0.000 | 78.57 | 65.79 | 0.082 | 91.67 | 85 | 0.161 |
| NPV (%) | 83.3 | 89.86 | 0.162 | 100 | 96.97 | 0.141 | 86.96 | 93.94 | 0.016 | 88 | 78.43 | 0.109 |