【摘要】 目的 评价胃癌术前CT扫描价值。 方法 经胃镜病理证实的30例胃癌患者行CT检查，观察其CT表现，并和手术、病理做对照分析。 结果 CT显示进展期胃癌30例，T分期诊断正确率80.0%(24/30)，N分期诊断正确率70.8%(17/24)，M分期诊断正确率66.7%(6/9)。 结论 低张胃CT扫描对中晚期胃癌诊断价值较大，可指导临床手术和治疗方案的制定。

    关键词 胃癌 低张 分期 体层摄影术 X线计算机

    The CT scanning technique of gastric carcinoma and preoperative staging

    Yang Jinmei，Liu Xiaokun

    Department of Radiology，The Shanghai Meishan Hosptial，Nanjing210039.

    【Abstract】 Objective To evaluate the preoperative CT scan of gastric carcinoma.Methods Thirty cases of gastric carcinoma were proved by pathology and examined with CT scanning using hypotonic and water-drinking tech-nique.All of the CT features were observed and compared with pathology.Results The demonstrated gastric carcino-ma was30cases in middle-late period，the staging accuracy for T，N and M was80.0%，70.8%and66.7%，re-spectively.Conclusion CT scanning technique using hypotonic and water-drinking has an important value for gas-tric carcinoma in middle-late period and helpful in selecting of the appropriate patients for surgery or other treatment methods. ......