Table 4. Reproducible features using the Pyradiomics software and simulated delineations with a Dice coefficient of 0.85 on DATASET 1 according to the gray-level discretization.
| Sequence | Difference in reproducible features distribution (p-value) | Highest number of reproducible features | |||
|---|---|---|---|---|---|
| Among FBS | Among FBN | Number | P-Value | ||
| FBS | FBN | ||||
| wDIXON-T2-WI | 0.14 | < 0.0001* | 57 | 37 | < 0.001* |
| ipDIXON-T2-WI | 0.69 | 0.75 | 62 | 46 | < 0.01* |
| pc wDIXON-T1-WI | 0.28 | < 0.001* | 66 | 57 | < 0.05* |
| pc ipDIXON-T1-WI | 0.41 | < 0.01* | 64 | 59 | 0.27 |
| T1-WI | 0.14 | < 0.05* | 54 | 44 | 0.09 |
| ADC map | 1 | 0.25 | 43 | 26 | < 0.05* |
FBS = Fixed Bin Size (absolute discretization), FBN = Fixed Bin Number (relative discretization). Sequence abbreviations: Water DIXON-T2-WI (wDIXON-T2-WI); In-Phase DIXON-T2-WI (ipDIXON-T2-WI); Post-Contrast Water DIXON-T1-WI (pc wDIXON-T1-WI); Post-Contrast In-Phase DIXON-T1-WI (pc ipDIXON-T1-WI); Apparent Diffusion Coefficient map (ADC map).
* = statistically significantly different among discretizations.