Fig. 5

Calibration curves show the calibration of the clinical traditional MRI model, the multi-modal radiomics signature, and the multi-modal clinical imaging model in terms of the agreement between the predicted and observed at 1-, 3-, and 5-year outcomes. The model-predicted and actual survival probability are plotted on the x- and y-axis, respectively. The diagonal gray line and colored line respectively represent a perfect estimation by an ideal model and the performance of models; the ideal model-predicted survival probability perfectly corresponds to the actual survival probability, while a closer alignment of the colored line with the diagonal gray line represents a better estimation of the model. MRI, magnetic resonance imaging; DFS, disease-free survival