Figure 8.

The training ROC curve, verification ROC curve, cross-validation ROC curve, and test ROC curve of the radiomics features signatures from different models. The solid blue line denotes the mean ROC curve or the ROC curve, while the red dotted line is the diagonal of the ROC curve. The gray shaded area is the standard deviation range of the ROC curve on the cross-validation set, and the thin solid line is the ROC curve for each fold in cross-validation. (A) The ROC of the training set on the cross-validation set; (B) the ROC of the verification set on the cross-validation set; (C) the ROC of the cross-validation; and (D) the ROC of the test set. ROC, receiver operating characteristic.