Abstract:Objective To compare the accuracy of computed tomography (CT) alone and CT combined with EUS (CT-EUS) in deciding preoperative T and N staging of esophageal carcinoma (EC), respectively, and to assess the impact of EUS after CT on the treatment of EC patients. Methods A total of 750 patients with esophageal cancer were selected from Jan 2015 to May 2018 in our hospital, and all patients were randomized into the CT group (388 cases) and the CT-EUS group (362 cases). According to the TNM staging system (AJCC Eighth Edition), and stages were compared with surgical pathology, which as the gold standard. The rate of EMR, R0, perioperative complication, conversation and neoadjuvant therapy were compared respectively. Results The T and N staging accuracy rate of CT examinations were 67.0%, 75.1%, and 83.5%, 85.6% were in two groups respectively with significant difference (P?0.05). Kappa consistency test showed that T and N staging consistency of CT-EUS group was better than that of CT group alone. Compared with CT alone, the conversion rate to thoracotomy, intraoperative bleeding and tracheal injury rate in CT-EUS group were lower (P?0.05), R0 resection rate was higher (P?0.05); EMR utilization rate in CT-EUS group was lower and neoadjuvant treatment rate was higher than that in CT alone group, but there was no significant difference (P?>?0.05). Conclusions The accuracy of EUS combined with CT is superior to CT-alone in preoperative T, N staging of esophageal caicinoma, but had limited impact on the multidisciplinary treatment decisions.