Fig. 3From: Determining rib fracture age from CT scans with a radiomics-based combined model: a multicenter retrospective studyThe combined model for classification between 3–12 weeks and > 12 weeks. The calibration curves of this model in the training and internal test sets were obtained by resampling 1000 times. The dotted line indicates the ideal ability, and the solid line represents the real ability of the model. The combined performed better when the solid line was closer to the dotted lineBack to article page