Fig. 5

Receiver operating characteristic curve (ROC) on CECT-based RM according to traditional risk grouping [LRT (Types A, AB and B1), HRT (Types B2 and B3), TC)]. a The 16-feature RM was trained in the training set with the LR classifier. The areas under the ROC curve (AUCs) of LRT, HRT, and TC were 0.795, 0.851, and 0.860, respectively. b The 16-feature RM was tested in the training set with the LR classifier. The AUCs of LRT, HRT, and TC were 0.621, 0.754, and 0.500, respectively