Preoperatively predicting vessels encapsulating tumor clusters in hepatocellular carcinoma: Machine learning model based on contrast-enhanced computed tomography

Figure 5 Receiver operating characteristic of the combined radiomics models. A: Receiver operating characteristic (ROC) of combined radiomics model using four machine learning algorithms on the training set; B: ROC of combined radiomics model using four machine learning algorithms on the internal test set; C: ROC of combined radiomics model using four machine learning algorithms on the external test set. ROC: Receiver operating characteristic; LR: Logistic regression; SVM: Support vector machine; DT: Decision tree; RF: Random forest; CI: Confidence interval; AUC: Area under the curve.