Figure 1

Workflow of current study. (1) The expert segment the region of interest on the image. (2) Radiomic features were extracted for further analysis. (3) Five feature selection methods and five classifiers combined into twenty-five models with the help of cross-validation in the training cohort. Part of the model was picked out and divided into three groups, five models in each group. (4) Combined application of the five models through voting strategies within the group.