Fig. 6

The result and evaluation of prediction models in the test cohort. a The ROC curves of different radiomics models and SIR model based on the machine learning algorithms that achieved the highest AUC value. b DeLong’s test comparing the diagnostic performance (AUC) of different models. Calibration curves c and DCA d of different models. MRR Multi-regional radiomics, FRR Fused-regional radiomics