Table 3.
Cox proportional hazards regression of semantic features for patients’ overall survival.
| Combined Cohort | ||
|---|---|---|
| Feature | HR (95% CI) | p-Value |
| Anatomic region | 0.58 (0.33–1) | 0.067 |
| Localization | 1.2 (0.95–1.5) | 0.12 |
| Image pattern | 0.94 (0.59–1.5) | 0.8 |
| Borders | 1.3 (0.86–1.9) | 0.22 |
| Maximal diameter without tail (in mm) | 1 (1–1) | 0.022 |
| Dominant STIR signal intensity | 1.3 (0.45–3.5) | 0.66 |
| STIR homogeneity | 1.5 (0.74–2.9) | 0.27 |
| Tumor contrast enhancement | 0.74 (0.52–1.1) | 0.1 |
| Homogeneity of Tumor contrast enhancement | 1 (0.54–1.9) | 0.98 |
| Tail sign | 1.5 (0.86–2.6) | 0.16 |
| Vascularization | 0.95 (0.47–1.9) | 0.88 |
| Necrosis | 1.9 (1–3.6) | 0.039 |
| Edema perilesional (in mm) | 1.1 (0.6–1.9) | 0.81 |
| Edema diameter | 1 (1–1) | 0.043 |
| Contrast enhancement perilesional | 1.5 (0.85–2.6) | 0.16 |
Univariate Cox proportional hazards regression was performed for semantic imaging features. Significant factors are written in bold. Depicted p-values were not corrected for multiple testing. Abbreviations: 95% CI: 95% confidence interval.