In Vivo EGFR Molecular Classification and Treatment Response

The goal of investigators were to evaluate the use of 18F-MPG as a novel PET/CT radiotracer to monitor EGFR-activating mutational status and identify EGFR-TKIs benefit NSCLC patients. the investigators want to evaluated the use of 18F-MPG in lung cancer imaging in adult NSCLC patients with different EGFR mutational status of primary and metastatic cancers. And the investigators want to evaluated the use of 18F-MPG in adult NSCLC patients with EGFR mutational status received non-treatment, EGFR-TKIs and chemotherapy.