Fig. 3.

Radiomics nomogram developed with ROC and calibration curves. A A radiomics nomogram was developed in the primary cohort, incorporating the radiomics signature and CT-reported LN status. Comparison of ROC curves between the radiomics nomogram and CT-reported LN status alone for the prediction of LN metastasis in the (B) primary and (C) validation cohorts. Calibration curves of the radiomics nomogram in the (D) primary and (E) validation cohorts