CD274 and non-small cell lung carcinoma: In this study, to evaluate the predictive power of radiomics based on [18F]FDG PET/CT imaging for PD-L1 expression in patients with NSCLC, we constructed and validated a radiomics model, clinical model and combined model and further developed a nomogram based on the optimal predictive model to predict PD-L1 expression in patients with NSCLC by using [18F]FDG PET/CT imaging radiomics.