Fig. 1: Study flowchart outlining participant selection and analysis.
From: AI prediction model for endovascular treatment of vertebrobasilar occlusion with atrial fibrillation

This figure outlines the patient selection process for the Chinese and European cohorts, the allocation of training and test sets, and the workflow for model development, validation, and external testing. The Chinese cohort was split into training and test sets, while the European cohort served as an external validation set, highlighting exclusion criteria and key analytical steps.