目的 分析探讨MRI与螺旋CT对于 原发性胃癌病灶诊断的临床应用价值， 为胃癌治疗确定靶部位。方法 选择我院 2013年1月-2014年12月之间收治的58例原 发性胃癌患者作为观察对象，对患者分别 使用螺旋CT检查（CT组）和MRI检查（MRI 组），分析对比两组患者的胃癌病灶检 出情况。结果 CT组使用螺旋CT检查出49 例患者的123个胃内病灶以及30例患者的 98个胃外病灶；MRI组检查出56例患者的 189个胃内病灶和41例患者的146个胃外病 灶，两组患者的检测结果差异具有统计学 意义。结论 与螺旋CT检查方式相比，应 用MRI对原发性胃癌患者病灶检查具有更 大的优势，患者胃内病灶和胃外病灶的检 出率更高，具有很好的临床推广和应用价 值。

Objective To analyze the MRI and clinical applications of spiral CT in diagnosis of primary gastric cancer lesions value, the target can be located in the treatment of gastric cancer. Methods Our hospital between January 2013 - December 2014, 58 cases of primary gastric cancer patients treated as research object, using spiral CT examination on the patients group (CT) and MRI group, contrast analysis of two groups of patients with gastric cancer lesion detection. Results CT group using spiral CT examination of 49 cases of 123 patients with gastric lesions and 30 cases of 98 patients with gastric lesions, MRI group check out of 56 cases of 189 patients with gastric lesions and 41 cases of 146 patients with gastric lesions, test results of two groups of patients with difference is statistically significant. Conclusion Compared with spiral CT examination method, the application of MRI in patients with primary gastric cancer lesions has more advantages, gastric lesions and gastric lesions in patients with higher detection rate, has the very good clinical popularization and application value.