Preoperative dual-energy computed tomography radiomics for prognosis of advanced gastric adenocarcinoma

Figure 4 Nomograms and comprehensive model performance evaluation. A and B: A patient with pT4N3M0 staging in the validation cohort was stratified into the low-risk group by the combined model; the nomogram indicated that the probabilities of the patient having disease-free survival and overall survival of less than 5 years were 24.8% and 14.1%, respectively. Ultimately, the patient remained alive at 5 years postoperatively without recurrence or metastasis; C and D: C-index comparison among models via 10-fold cross-validation in the training cohort; E-H: Decision curve analysis in the training and validation sets; I and J: Akaike information criterion values of each prognostic model in the validation set; K-N: Calibration curves in the training and validation sets; O-R: Receiver operating characteristic curves in the training and validation sets. DFS: Disease-free survival; OS: Overall survival; AIC: Akaike information criterion; TNM: Tumor-node-metastasis; AUC: Area under the curve; CI: Confidence interval.