目的探析腹部超声结合CT在 胃癌术前分期中的应用价值。方法 选 择我院2012年1月-2015年10月收治88例 胃癌患者作为研究对象，均于术前行腹 部超声及多层螺旋CT检查，以病理结果 为基准比较US、MSCT及US+MSCT的术前 分期准确率。结果 US的T分期准确率为 78.4%(69/88)，MSCT为81.8%(72/88)， US+MSCT为92.0%(81/88)，US+MSCT高 于US单独与MSCT单独，差异有统计学 意义(P＜0.05)；US的N分期准确率为 68.2%(60/88)，MSCT为80.7%(71/88)， US+MSCT为94.3%(83/88)，US+MSCT高 于US单独与MSCT单独，差异有统计学 意义(P＜0.05)；US的M分期准确率为 64.8%(57/88)，MSCT为81.8%(72/88)， US+MSCT为93.2%(82/88)，US+MSCT高于 US单独与MSCT单独，差异有统计学意义 (P＜0.05)。结论 腹部超声结合CT在胃 癌患者临床诊断中的应用具有明显积极 作用，大幅提高术前分期诊断准确性， 可为手术方案的制定提供指导，具有较 大价值。

Objective To explore the application value of abdominal ultrasound combined with CT in the preoperative staging of gastric cancer. Methods 88 cases of patients with gastric cancer treated in our hospital from January 2012 to October 2015 were selected as the research objects. All patients underwent abdominal ultrasound and multi-slice spiral CT examination before operation. The pathological results were taken as the standard to compared the accuracy rates of US, MSCT and US+MSCT in preoperative staging. Results The accuracy rates of US, MSCT and US combined with MSCT in T staging were 78.4% (69/88), 81.8% (72/88) and 92.0% (81/88), respectively. That of US combined with MSCT was higher than that of US alone and MSCT alone (P<0.05); The accuracy rates of US, MSCT and US combined with MSCT in N staging were 68.2% (60/88), 80.7% (71/88) and 94.3% (83/88), respectively. That of US combined with MSCT was higher than that of US alone and MSCT alone (P<0.05); The accuracy rates of US, MSCT and US combined with MSCT in M staging were 64.8% (57/88), 81.8% (72/88) and 93.2% (82/88), respectively. That of US combined with MSCT was higher than that of US alone and MSCT alone (P<0.05). Conclusion The application of abdominal ultrasound combined with CT in clinical diagnosis of patients with gastric cancer has significant positive effect. It greatly improves the accuracy rate of preoperative staging diagnosis and can provide guidance for the development of operation plan. It is of great value