TN staging diagnosis of gastric cancer by multi-slice CT

XIE Jin-hua; WEN Ge; ZHAO Wen-zhuo; LI Qing-quan

Abstract：Objective To investigate the clinical value of multi‐slice CT (MSCT) examination in TN staging diagnosis of gastric cancer .Methods A retrospective analysis of 50 cases gastric cancer with multi‐slice and dual‐phase enhanced CT scan data and confirmed by surgery or pathology was conducted in our hospital from January 2011 to December 2014 .TN staging diagnosis of gastric cancer was performed by two high qualification radiologists and using a double‐blind law ,the results were compared with postoperative pathological outcomes .Results The overall accuracy of MSCT in gastric cancer T staging diagnosis was 74% (37/50) ,in which the specificity of T1 ,T2 ,T3 and T4 were 75 .0% ,73 .3% ,71 .4% and 80 .0% ,the sensitivity were 75 .0% ,68 .5% ,75 .0% and 80 .0% ,respectively .The diagnostic accuracy of MSCT in N staging was 71 .7% (33/46) ,in which the specificity of N0 ,N1 and N2 were 73 .3% ,71 .4% and 70 .0% ,the sensitivity were 73.3% ,68 .2% and 77 .8% ,respectively .Conclusion The diagnostic accuracy of MSCT was high for gastric cancer TN staging ,which can be used as an important preoperative reference for clinical treatment options and prognosis .