TABLE 1.
Summary of the radiomic features extracted in this study and the associated input parameters.
| Feature family | Total features | Description | Parameters |
|---|---|---|---|
|
| |||
| Morphology | 19 | Geometric properties of the ROI | - |
| Intensity | 20 | Intensity distribution within the ROI | - |
| Histogram | 503 | Intensity distribution within the ROI after bin quantization | ∈ {16,32,64,128} |
| COLLAGE | 104 | Quantifies heterogeneity of local gradient orientations within w | w ∈ {3,5} |
| GLCM | 72 | Distribution of discretized intensities of neighboring voxels along all directions within the ROI | ∈ {16,32,64,128} |
| ∈ {1,2,3} | |||
| GLRLM | 90 | Distribution of discretized intensities in all directions across run lengths within the ROI | ∈ {16,32,64,128} |
| ∈ {1,2,3} | |||
| GLSZM | 162 | Number of groups (or zones) of neighboring discretized voxels within the ROI |
∈ {16,32,64,128} |
| ∈ {1,2,3} | |||
| NGTDM | 5 | Number of groups of neighboring discretized voxels within the ROI, within a Chebyshev distance |
∈ {16,32,64,128} |
| ∈ {1,2,3} | |||