Objective To study the value of CT in evaluating the operable of gastric carcinoma in advanced stage.Methods The plainor contrast-enhanced CT scan was performed in 158 patients with advanced gastric carcinoma before operation.The patients were dividedinto "operable"group and"inoperable"group based on CT appearances with blind method,and CT features were analysed comparatively with operative findings.Results Of 102 patients in the operable group,97 cases were resected(95.1%).Of 56 cases in the inoperable group,50 underwent a laparotomy and in only 6 cases the tumors were resected.There was significant difference between the two groups(P