目的探讨多层螺旋CT(multislice spiral computed tomography， MSCT)三期增强扫描判断胃癌术前Lauren 分型的价值。方法 通过研究293例术后确 诊胃癌患者的术前三期增强扫描CT图像， 比较三种Lauren分型的胃癌在发生位置、 浆膜受侵、淋巴结转移、肿瘤厚度、体 积及各期CT值方面的差异。结果 胃癌的 Lauren分型在位置、淋巴结转移、肿瘤厚 度及门脉期、延迟期CT值的差异有统计学 意义（P<0.05），其余指标差异无统计学 意义(P>0.05)。结论 MSCT三期增强扫描 可较好的反映胃癌的Lauren分型，对治疗 方案选择和预后判断具有重要的指导价 值。

Objective To explore whether multi-slice spiral CT (MSCT) triple-phase enhanced scanning can preoperatively predict Lauren classification in gastric cancer. Methods 293 patients with gastric cancer who underwent preoperative three-phase enhanced CT were retrospectively recruited. The location, serosal invasion, lymph node metastasis, tumor thickness, volume and CT values in each phase were compared between the three Lauren classification in gastric cancer. Results With regard to the location, lymph node metastasis, tumor thickness and CT values in the portal phase and delayed phase, there were significant differences between the three groups (P<0.05). With regard to the other indexes, there were no significant differences between the three groups (P>0.05). Conclusion Three-phase enhanced MSCT might be used to preoperatively reflect Lauren classification in gastric cancer.