Table 6.
Values of GLCM features of the medulla (mean STD).
| Variable | Normal | Mild & Mod. CKD | Severe CKD |
|---|---|---|---|
| Autocorrelation | 11.76 3.39 | 12.17 3.14 | 13.23 4.48 |
| Contrast | 0.28 0.05 | 0.22 0.04 | 0.23 0.05 |
| Correlation | 0.74 0.09 | 0.70 0.11 | 0.71 0.09 |
| Cluster prominence | 17.34 16.03 | 6.56 4.63 | 8.38 8.90 |
| Cluster shade | 0.69 1.39 | 0.21 0.90 | 0.38 1.31 |
| Dissimilarity | 0.27 0.045 | 0.22 0.04 | 0.23 0.04 |
| Energy | 0.25 0.083 | 0.32 0.08 | 0.32 0.09 |
| Entropy | 1.80 0.32 | 1.51 0.20 | 1.53 0.26 |
| Homogeneity | 0.86 0.02 | 1.00 0.02 | 0.89 0.02 |
| Maximum Probability | 11.77 3.39 | 12.18 3.15 | 13.22 4.47 |
| Sum of squares variance | 6.64 0.99 | 6.83 0.90 | 7.09 1.18 |
| Sum average | 28.46 9.59 | 32.15 9.16 | 35.27 13.52 |
| Sum variance | 1.60 0.29 | 1.35 0.19 | 1.38 0.23 |
| Sum entropy | 0.28 0.05 | 0.22 0.04 | 0.23 0.05 |
| Difference variance | 0.59 0.06 | 0.52 0.05 | 0.53 0.06 |
| Difference entropy | −0.37 0.07 | −0.35 0.09 | −0.35 0.08 |
| Information measure of correlation 1 | 0.73 0.10 | 0.68 0.11 | 0.69 0.09 |
| Information measure of correlation 2 | 0.97 0.005 | 0.98 0.004 | 0.97 0.005 |
| Inverse difference (INV) | 1.00 0.0007 | 1.00 0.0006 | 1.00 0.0007 |