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目的：通过各种常规钡餐方法的比较及早期胃癌（ＥＧＣ）的征象分析，提高常规钡餐造影对早期胃癌的检出率。方法：对４４例手术及病理证实的早期胃癌进行回顾性研究，重点对溃疡型进行研究，并与３２例胃镜或手术病理证实的良性溃疡对照。结果：ＥＧＣ病例中Ｘ线发现异常的总阳性率９５．５％，采用双对比像、粘膜像、充盈像、压迫像的阳性率分别为９０．９％、８１．８％、５４．５％、５６．８％；对病变及周围粘膜均能清晰显示并能提示或诊断为恶性的分别为３６．４％、２２．７％、２０．５％、１５．９％，ＥＧＣ的Ｘ－线阳性或可疑阳性率为６１．４％。恶性病变与良性溃疡比较分别如下：大小１．３８ｃｍ（０．７～３．５ｃｍ）及０．７ｃｍ（０．４～１．５ｃｍ），Ｐ＜０．０５；溃疡深度平均３．４５ｍｍ及５．４７ｍｍ，Ｐ＜０．０１；底部或边缘出现颗粒状突起为７８％及１５％，Ｐ＜０．０５；周围粘膜不规则或中断、融合１２例及２例，Ｐ＞０．０５。结论：双对比像与粘膜像能更多更清晰地发现病变，压迫像对胃下部前壁病变的显示很重要，应尽可能用４种检查方法对每一部位进行检查，以相互补充证实；溃疡相对大而浅及底部或边缘出现颗粒状突起对早期恶性病变有鉴别意义；不同于进展期胃?
OBJECTIVE: To improve the detection rate of early gastric cancer by comparing the conventional barium meal methods and the signs of early gastric cancer (EGC). Methods: A retrospective study was performed on 44 cases of early stage gastric cancer confirmed by surgery and pathology. The ulcer type was mainly studied and compared with 32 cases of benign ulcer confirmed by endoscopy or surgical pathology. Results: The positive rate of abnormal X-ray findings in EGC was 95.5%. The positive rates of double contrast, mucosal imaging, filling imaging and compression imaging were 90.9%, 81.8%, 54.5% , 56.8% respectively; the X-ray of EGC were 36.4%, 22.7%, 20.5% and 15.9% respectively, which could be clearly shown to the lesion and the surrounding mucosa and could be prompted or diagnosed as malignant The positive or suspicious positive rate was 61.4%. Malignant lesions and benign lesions were compared as follows: size 1.38cm (0.7 ~ 3.5cm) and 0.7cm (0.4 ~ 1.5cm), P <0.05; ulcer depth average 3.45mm and 5 .47mm, P <0.01; granular or protruding at the bottom or edge of 78% and 15%, P <0.05; irregular or interrupted peripheral mucosa fusion in 12 cases and 2 cases, P> 0.05. CONCLUSION: Dual contrast and mucosal imaging can detect lesions more and more clearly. Compression is very important for the display of lesions in the anterior inferior gastric wall. Each site should be examined by 4 kinds of examination methods as far as possible to confirm each other. Relatively large and shallow ulcers and granular granular protrusions at the bottom or edge of the differential diagnosis of early malignant; different from the advanced stomach?