Machine learning-based radiomics score improves prognostic prediction accuracy of stage II/III gastric cancer: A multi-cohort study

Figure 6 Performance of the random survival forest model. A: The area under the curve of random survival forest model with and without the overall survival-associated computed tomography image radiomics score; B: Calibration curve of random survival forest model for 3-year overall survival prediction; C: Calibration curve for 5-year overall survival; D: Feature importance analysis of all the variables included in the random survival forest model. OACRS: Overall survival-associated computed tomography image radiomics score; SMI: Skeletal muscle index; SMD: Skeletal muscle density; TD: Tumor deposition; ASA: American Association of Anesthesiologists score; CEA: Carcinoembryonic antigen; OS: Overall survival; AUC: Area under the curve.