Table 2 Diagnostic accuracy of magnetic resonance imaging (MRI) parameters to predict hepatic steatosis with the best predictive cutoffs
|  | AUC (95% CI) | SE | SP | PPV | NPV |  + LR | − LR | p |
|---|---|---|---|---|---|---|---|---|
For the prediction of liver steatosis | ||||||||
T1-fat fraction > -13.7% | 0.808 (0.637–0.922) | 66.7 | 90 | 94 | 53.5 | 6.7 | 0.4 | < 0.001 |
Fat percentage (> 5.1%) | 0.702 (0521–0.846) | 54.2 | 80 | 86.4 | 42.7 | 2.7 | 0.6 | 0.030 |
Proton density fat fraction (> 4.95%) | 0.958 (0.828–0.995) | 95.8 | 90 | 95.7 | 90.1 | 9.6 | 0.1 | < 0.001 |
For the prediction of mild liver steatosis | ||||||||
T1-fat fraction > −13.7% | 0.845 (0.622–0.963) | 72.7 | 90 | 74.4 | 89.2 | 7.3 | 0.3 | < 0.001 |
Fat percentage (> 5.1%) | 0.650 (0.414–0.841) | 45.5 | 80 | 47.7 | 78.6 | 2.3 | 0.7 | 0.217 |
Proton density fat fraction (> 4.95%) | 0.910 (0.701–0.987) | 91 | 90 | 78.5 | 96.1 | 9.1 | 0.1 | < 0.001 |
For the prediction of moderate liver steatosis | ||||||||
T1-fat fraction (> 0.4%) | 0.654 (0.466–0.812) | 27.3 | 100 | 100 | 77.4 | – | 0.7 | 0.147 |
Fat percentage (> 2.8%) | 0.652 (0.463–0.810) | 90.9 | 38.1 | 37 | 91.3 | 1.5 | 0.2 | 0.154 |
Proton density fat fraction (> 8.44%) | 0.931 (0.782–0.988) | 100 | 85.7 | 73.7 | 100 | 7 | 0 | < 0.001 |
For the prediction of severe liver steatosis | ||||||||
T1-fat fraction (> 6.2%) | 0.619 (0.445–0.773) | 40 | 100 | 100 | 91.8 | – | 0.6 | 0.942 |
Fat percentage (> 6.1%) | 0.850 (0.694–0.945) | 100 | 65.6 | 30.3 | 100 | 2.9 | 0 | 0.0742 |
Proton density fat fraction (> 20.4%) | 0.975 (0.861–995) | 100 | 93.8 | 70.7 | 100 | 16 | 0 | < 0.001 |