Table 4 Diagnostic performance of DKI metrics for assessing the degrees of renal dysfunction
From: Renal functional and interstitial fibrotic assessment with non-Gaussian diffusion kurtosis imaging
Youden index | Cutoff value | Sensitivity (%) | Specificity (%) | AUC | 95% CI | |
|---|---|---|---|---|---|---|
MK | ||||||
Cortex | 0.414 | 0.470 | 63.20 | 78.30 | 0.719 | 0.560–0.877 |
Medulla | 0.336 | 0.476 | 68.40 | 65.20 | 0.652 | 0.483–0.821 |
Ka | ||||||
Cortex | 0.519 | 0.469 | 73.70 | 78.30 | 0.785 | 0.638–0.931 |
Medulla | 0.643 | 0.461 | 94.70 | 69.60 | 0.828 | 0.698–0.959 |
Kr | ||||||
Cortex | 0.281 | 0.462 | 36.80 | 91.30 | 0.533 | 0.346–0.721 |
Medulla | 0.133 | 0.487 | 26.30 | 87.00 | 0.526 | 0.346–0.707 |
MD | ||||||
Cortex | 0.492 | 1.783 | 91.30 | 57.90 | 0.769 | 0.618–0.920 |
Medulla | 0.467 | 1.779 | 78.30 | 68.40 | 0.731 | 0.575–0.887 |
FA | ||||||
Cortex | 0.352 | 0.203 | 82.60 | 52.60 | 0.660 | 0.492–0.829 |
Medulla | 0.650 | 0.249 | 91.30 | 73.70 | 0.851 | 0.732–0.971 |