Fig. 3

Decision curve analysis for the present model in the training cohort (A) and the validation cohort (B). The black line represents the assumption that the prediction of MVI was wrong in all patients. The Grey line represents the assumption that the prediction of MVI was right in all patients. The net benefit was weighted by the relative harm of the wrong prediction for MVI negative patients compared with the wrong prediction for MVI positive patients. Threshold probability is where the expected net benefit of the right prediction is equal to the expected net benefit of the false prediction