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目的：探讨CT检查对胃癌诊断的价值以及对临床的帮助。方法：对76例正常成人和43例有病理证实的胃癌病人作饮水低张胃CT检查。比较两组胃壁厚度、形态、扩张程度等表现，作出统计学分析。结果：正常成人的胃壁光整、厚度均匀，平均厚度为0.45cm。胃癌组主要CT表现①胃壁局限性梭形增厚;②胃壁局部结节或肿块状突起，多突向胃腔内;③胃壁广泛增厚，胃腔狭窄，且在此基础上结节生长;④以上表现合并周围结构侵犯或远处转移。结论：CT检查胃癌可弥补胃肠钡餐和胃镜只能观察到胃腔粘膜面的改变，不能观察到胃壁和壁外侵犯、远处转移等不足。可较准确地确定胃癌的位置、形态，对胃壁侵犯范围和对胃外侵犯的情况，有利临床选择治疗方案。
Objective: To investigate the value of CT examination in the diagnosis of gastric cancer and its clinical help. Methods: CT scans were performed in 76 normal adults and 43 patients with pathologically confirmed gastric cancer. Comparing the performance of the two groups of gastric wall thickness, morphology, and degree of expansion, a statistical analysis was performed. Results: Normal adults had a smooth, uniform thickness and an average thickness of 0.45 cm. The main CT findings in gastric cancer group were: 1) limitation of fusiform thickening of gastric wall; 2) local nodular or mass-like protrusion of stomach wall, mostly protruding into gastric cavity; 3) extensive enlargement of gastric wall, narrowing of gastric cavity, and nodule growth on this basis; More than 4 performance combined with surrounding structural invasion or distant metastasis. Conclusion: CT examination of gastric cancer can compensate for gastrointestinal barium meal and gastroscopy can only observe changes in the gastric mucosal surface, can not observe the stomach wall and wall invasion, distant metastasis and other deficiencies. Can accurately determine the location of gastric cancer, morphology, the scope of the violation of the stomach wall and the violation of the situation outside the stomach, is conducive to clinical treatment options.