Table 3.
Agreement of semantic features between 2 readers
| CT features | Kappa | intra-class correlation of coefficient (ICC) |
|---|---|---|
| Location | 1 | |
| Fissure attachment | 1 | |
| Pleural attachment | 1 | |
| Contour | 0.71 | |
| Lobulation | 0.51 | |
| Concavity | 0.64 | |
| Border definition | 0.71 | |
| Spiculation | 0.69 | |
| solidity | 0.95 | |
| Air bronchogram | 1 | |
| Bubble-like lucency | 1 | |
| Vascular convergence | 0.48 | |
| Thickened adjacent bronchovascular bundles | 1 | |
| vessel attachment | 0.90 | |
| Pleural retraction | 1 | |
| Peripheral emphysema | 0.43 | |
| Peripheral fibrosis | 0.77 | |
| Nodules in primary tumor lobe | 1 | |
| Nodules in non-tumor lobes | 0.75 | |
| Lymphadenopathy | 0.64 | |
| Long axial diameter | 0.940 (0.890 – 0.968) | |
| Short axial diameter | 0.960 (0.834 – 0.985) |