目的 研究超声造影联合多层螺 旋CT在胃癌诊断中的应用。方法 选择我 院2015年3月-2018年3月经手术病理确诊 的116例胃癌患者进行回顾性分析，所有 患者术前均使用超声造影和多层螺旋CT检 查，观察两种诊断方式分别诊断及联合诊 断Borrmann分型、TNM分期与病理学检查 结果的准确性。结果 联合诊断Borrmann 分型总准确率为91.38%，高于超声造影诊 断83.62%和多层螺旋CT诊断77.59%，差异 有统计学意义(P＜0.05)；联合诊断胃癌T 分期总准确率为88.79%，高于超声造影诊 断78.45%和多层螺旋CT诊断70.69%，差异 有统计学意义(P＜0.05)；联合诊断胃癌 N分期总准确率为86.21%，高于超声造影 诊断74.14%和多层螺旋CT诊断62.93%，差 异有统计学意义(P＜0.05)；超声造影、 多层螺旋CT及联合诊断胃癌M分期总准确 率，差异无统计学意义(P＞0.05)。结论 胃癌术前使用超声造影联合多层螺旋在 Borrmann分型、T分期和N分期准确率较单 一诊断效能高，两者联合有助于提高术前 诊断准确率。

Objective To study the application of contrast-enhanced ultrasound combined with multi-slice spiral CT in the diagnosis of gastric cancer. Methods A total of 116 cases of patients with gastric cancer diagnosed by pathology from March 2015 to March 2018 were analyzed retrospectively. All patients were given contrast-enhanced ultrasound and multi-slice spiral CT before operation. The accuracy of the single method and combined method for Borrmann classification and TNM staging were analyzed. Results The total accuracy of combined diagnosis for Borrmann classification was higher than that of contrast-enhanced ultrasound and of multi-slice spiral CT (91.38% vs 83.62% vs 77.59%) (P<0.05). The total accuracy of combined diagnosis for gastric cancer T stage was higher than that of contrast-enhanced ultrasound and of multi-slice spiral CT (88.79% vs 78.45% vs 70.69%) (P<0.05). The total accuracy of combined diagnosis for gastric cancer N stage was higher than that of contrast-enhanced ultrasound and multi-slice spiral CT (86.21% vs 74.14% vs 62.93%) (P<0.05). There was no statistically significant difference in the total accuracy of gastric cancer M stage by contrast-enhanced ultrasound, multi-slice spiral CT and combined diagnosis (P>0.05). Conclusion Preoperative contrast-enhanced ultrasound combined with multi-slice spiral is better than single diagnosis in the diagnosis of accuracy rates of Borrmann classification, T stage and N stage. The combination of the two methos helps to improve the accuracy of preoperative diagnosis.