Fig. 4. Receiver operating characteristic curves of the training and validation cohorts.

A. In the training cohort, the areas under the curve (AUC) were 0.760, 0.812, and 0.858 for the clinicopathologic, radiomics, and combined models, respectively. B. In the validation cohort, the AUC values were 0.708, 0.831, and 0.810, respectively.