目的 研究超声内镜(Endoscopic ultrasonography, EUS)与多层螺旋 CT(Multi-slice spiral CT, MSCT)在胃 癌术前分期中的应用价值。方法 选取我 院2012年9月至2014年9月拟进行手术的经 活检证实为胃癌的患者79例，于手术前一 周分别进行超声内镜检查与多层螺旋CT检 查，与手术后病理检查结果进行比较。结 果 超声内镜对胃癌T分期的诊断准确率为 89.87%较多层螺旋CT69.62%显著较高(P ＜0.05)；超声内镜对T3分期的诊断准确 率为90.91%较多层螺旋CT63.64%显著较高 (P＜0.05)；多层螺旋CT对胃癌M分期的诊 断准确率为79.75%较超声内镜诊断准确率 65.82%显著较高(P＜0.05)。结论 超声内 镜与多层螺旋CT检查在胃癌分期方面均有 较高的准确性，超声内镜对胃癌T分期的 诊断准确性较高，多层螺旋CT对胃癌M分 期的诊断准确率较高，两者联合诊断对胃 癌患者治疗方案的选择更有指导意义。

Objective To study the application value of endoscopic ultrasonography (EUS) and multi-slice spiral CT (MSCT) in preoperative staging of gastric cancer. Methods Seventy-nine patients with gastric cancer confirmed by biopsy in our hospital between September 2012 and September 2014 were examined by EUS and MSCT, and the results were compared with the postoperative pathological findings. Results The accuracy of EUS in the diagnosis of T staging of gastric cancer (89.87%) was significantly higher than that of MSCT (P<0.05). The accuracy of EUS in the diagnosis of T3 stage(90.91%) was higher than that of MSCT (63.64%) (P<0.05). The accuracy of MSCT in the diagnosis of M stage of gastric cancer (79.75%) was significantly higher than that of EUS (65.82%) (P<0.05). Conclusion The accuracy rates of both EUS and MSCT in the diagnosis of stage of gastric cancer are high. The accuracy of MSCT in the diagnosis gastric cancer T stage is higher while the accuracy of MSCT in the diagnosis of gastric cancer M stage is higher. The combined diagnosis of both methods is of guiding significance in choosing treatment regimen of gastric cancer.