Table 3. Texture features of non-responder versus responder group after CRT without filtration and for various filter scale values depicting fine, medium, and coarse textures.
| Non-responder | Responder | P value | ||
|---|---|---|---|---|
| No filtration | ||||
| † | Entropy | 6.84 ± 0.37 | 6.59 ± 0.22 | < 0.001 |
| † | Uniformity | 0.0107 ± 0.0027 | 0.0125 ± 0.0021 | < 0.001 |
| Kurtosis | 0.96 ± 2.03 | 0.71 ± 0.86 | 0.513 | |
| † | Skewness | -0.08 ± 0.69 | -0.55 ± 0.29 | < 0.001 |
| † | Standard deviation | 32.80 ± 10.70 | 26.02 ± 3.71 | < 0.001 |
| Filter 1.0 (fine) | ||||
| † | Entropy | 7.30 ± 0.20 | 7.18 ± 0.32 | 0.032 |
| † | Uniformity | 0.0076 ± 0.0012 | 0.0084 ± 0.0018 | 0.026 |
| Kurtosis | 1.65 ± 2.17 | 1.66 ± 1.82 | 0.973 | |
| Skewness | 0.61 ± 0.58 | 0.44 ± 0.67 | 0.206 | |
| † | Standard deviation | 46.02 ± 8.75 | 41.91 ± 9.45 | 0.038 |
| Filter 1.5 (medium) | ||||
| † | Entropy | 6.89 ± 0.25 | 6.77 ± 0.25 | 0.032 |
| † | Uniformity | 0.0104 ± 0.0019 | 0.0113 ± 0.0019 | 0.034 |
| Kurtosis | 0.90 ± 0.82 | 1.05 ± 0.88 | 0.395 | |
| Skewness | 0.10 ± 0.47 | -0.08 ± 0.55 | 0.094 | |
| † | Standard deviation | 33.12 ± 6.54 | 30.34 ± 6.04 | 0.048 |
| Filter 2.0 (medium) | ||||
| Entropy | 6.62 ± 0.28 | 6.50 ± 0.27 | 0.052 | |
| Uniformity | 0.0125 ± 0.0026 | 0.0136 ± 0.0026 | 0.07 | |
| † | Kurtosis | 0.74 ± 0.95 | 1.18 ± 1.12 | 0.047 |
| † | Skewness | -0.45 ± 0.40 | -0.66 ± 0.40 | 0.017 |
| Standard deviation | 27.36 ± 5.51 | 25.42 ± 5.06 | 0.1 | |
| Filter 2.5 (coarse) | ||||
| Entropy | 6.48 ± 0.28 | 6.38 ± 0.29 | 0.111 | |
| Uniformity | 0.0138 ± 0.0030 | 0.0148 ± 0.0032 | 0.13 | |
| Kurtosis | 0.88 ± 1.18 | 1.38 ± 1.31 | 0.061 | |
| † | Skewness | -0.75 ± 0.40 | -0.92 ± 0.33 | 0.042 |
| Standard deviation | 25.52 ± 5.00 | 24.12 ± 4.80 | 0.194 | |
† P value < 0.05
Note: Data are mean ± standard deviation.