Objective To investigate the effect of tumor local factors on the prognosis of non-metastasis esophageal squamous cell carcinoma(ESCC) patients. Methods We retrospectively analyzed the clinical data of 263 ESCC patients. The effects of barium meal length, GTV maximum diameter, GTV length and GTV volume on the prognosis of patients were analyzed. Results ROC curve analysis showed that the prognosis critical value of barium meal length, GTV maximum diameter, GTV length and GTV volume were 4.25, 1.80, 5.85 cm ...