Table 2 Basic adherence rate according to the six key domains
| Â | Basic adherence rate |
|---|---|
Total 16 items | 37.1% |
Domain 1: Protocol quality and stability in image and segmentation | 32.3% |
 Protocol quality | 51 (100%) |
 Test-retest | 1 (2%) |
 Phantom study | 0 (0%) |
 Multiple segmentation | 14 (27.4%) |
Domain 2: Feature selection and validation | 81.4% |
 Feature reduction or adjustment of multiple testing | 48 (94.1%) |
 Validation | 35 (68.6%) |
Domain 3: Biologic/clinical validation and utility | 39.2% |
 Multivariate analysis with non-radiomics features | 32 (62.7%) |
 Biologic correlates | 28 (74.5%) |
 Comparison to ‘gold standard’ | 19 (37.2%) |
 Potential clinical utility | 1 (2%) |
Domain 4: Model performance index | 45.1% |
 Discrimination statistics | 49 (96.1%) |
 Calibration statistics | 7 (13.7%) |
 Cut-off analysis | 13 (25.5%) |
Domain 5: High level of evidence | 2% |
 Prospective study | 2 (3.9%) |
 Cost-effective analysis | 0 (0%) |
Domain 6: Open science and data | 3 (5.9%) |