Evaluating microvascular invasion in hepatitis B virus-related hepatocellular carcinoma based on contrast-enhanced computed tomography radiomics and clinicoradiological factors

Figure 5 Calibration, discrimination, and clinical utility analysis of the model for predicting high-risk group. A: Receiver operating characteristic analysis curve of the model; B-D: Calibration curves in the training (B) and validation (C) datasets, and decision curve (D) in the overall patients; E: The model is presented with a nomogram scaled by the proportional regression coefficient of each predictor. AFP: Alpha-fetoprotein; AST: Aspartate aminotransferase; MVI: Microvascular invasion; radscore (ROI^peri-AP): Represents the radscore based on regions of interest of 5 mm-wide peritumoral area from arterial phase contrast-enhanced computed tomography images; M2: High-risk group; ROC: Receiver operating characteristic; AUC: Area under the curve.