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１９８２年１２月～１９８６年１２月，我院收治食管癌３００例。采用１０ＭＶ－Ｘ线、６０Ｃｏ以及外照射加腔内１３７Ｃｓ三种不同放射源各治疗１００例。其１年、３年、５年生存率：１０ＭＶ－Ｘ线组分别为５６％、２２％、１２％；５０Ｃｏ组分别为５２％、１９％、１０％；外照射加腔内１３７Ｃｓ分别为７８％、３１％、１９％。１０ＭＶ－Ｘ组与６０Ｃｏ组比较无显著差异（Ｐ＞０．０５）．外照射加腔内组优于其它两组，尤以１年生存率，有显著差异（Ｐ＜０．０１）。三组死亡率分别为６１．３％（５４／８８）、６０％（５４／９０），４３％（３５／８１）．后者明显低于前两组（ｐ＜０．０５）三组病例的死亡原因仍以局部复发为主。临床观察表明：１０ＭＶ－Ｘ线和６０Ｃｏ疗效相似，而外照射加腔内１３７Ｃｓ的方法优于前两组。
From December 1982 to December 1986, 300 cases of esophageal cancer were treated in our hospital. 100 cases were treated with three different radioactive sources, 10MV-X, 60Co and external irradiation plus 137Cs. The 1-year, 3-year and 5-year survival rates were 56%, 22%, and 12% in the 10MV-X group, 52%, 19%, and 10% in the 50Co group, and 78% in the external cavity plus 137Cs. %, 31%, 19%. There was no significant difference between 10MV-X group and 60Co group (P>0.05). The external irradiation plus intraluminal group was superior to the other two groups, especially with a one-year survival rate, with significant differences (P<0.01). The three groups of mortality rates were 61.3% (54/88), 60% (54/90), and 43% (35/81). The latter was significantly lower than the former two groups (p<0.05). The cause of death was still mainly local recurrence. Clinical observations showed that the efficacy of 10MV-X and 60Co was similar, while external irradiation plus intracavity 137Cs was superior to the previous two groups.