Construction of CT Radiomics Model for Predicting the Efficacy of Immunotherapy in Patients With Stage III NSCLC

This is an observational longitudinal prospective study. CT scan is performed before radiotherapy, during radiotherapy and at the end of radiotherapy in patients with unresectable locally advanced NSCLC who undergo CRT. Radiomic features were extracted from CT images and baseline PD-L1 expression is assessed. CT-based radiomics models is developed to assess PD-L1 expression and predict the efficacy of ICI.