Table 3.
The last remaining radiomic features (n = 32)
| Feature name | Dimension | Feature family | Extracted region |
|---|---|---|---|
| Elongation | 2D | Shape | Intratumor |
| Maximum | 2D | First order | Intratumor |
| Cluster shade | 2D | GLCM | Intratumor |
| Large area low gray level emphasis | 2D | GLSZM | Intratumor |
| Elongation | 3D | Shape | Intratumor |
| Sphericity | 3D | Shape | Intratumor |
| 90th percentile | 3D | First order | Intratumor |
| Energy | 3D | First order | Intratumor |
| Maximum | 3D | First order | Intratumor |
| Maximal correlation coefficient | 3D | GLCM | Intratumor |
| Gray level non-uniformity | 3D | GLSZM | Intratumor |
| Small area emphasis | 3D | GLSZM | Intratumor |
| Zone variance | 3D | GLSZM | Intratumor |
| Coarseness | 3D | NGTDM | Intratumor |
| 10th percentile | 2D | First order | Peritumor |
| Maximum | 2D | First order | Peritumor |
| Minimum | 2D | First order | Peritumor |
| Cluster shade | 2D | GLCM | Peritumor |
| Difference variance | 2D | GLCM | Peritumor |
| Inverse difference moment normalized | 2D | GLCM | Peritumor |
| Maximal correlation coefficient | 2D | GLCM | Peritumor |
| Large area low gray level emphasis | 2D | GLSZM | Peritumor |
| Coarseness | 2D | NGTDM | Peritumor |
| Strength | 2D | NGTDM | Peritumor |
| Energy | 3D | First order | Peritumor |
| Maximum | 3D | First order | Peritumor |
| Cluster shade | 3D | GLCM | Peritumor |
| Inverse difference moment normalized | 3D | GLCM | Peritumor |
| Maximal correlation coefficient | 3D | GLCM | Peritumor |
| Large dependence high gray level emphasis | 3D | GLDM | Peritumor |
| Large area high gray level emphasis | 3D | GLSZM | Peritumor |
| Coarseness | 3D | NGTDM | Peritumor |
GLCM, gray level co-occurrence matrix; GLDM, gray level dependence matrix; GLSZM, gray level size zone matrix; NGTDM, neighboring gray tone difference matrix.