Methods:The features of two different gas-barium double contrast esophagus examinations of 40 cases with nonage upper esophageal carcinoma diagnosed by pathology were analyzed.
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结果：使用气钡双重对比剂动态造影法摄像后再慢动作回放观察的方法发现早期上段食道癌的阳性率最高。
Results: the positive rate of gas-barium double contrast kinesis radiography with the observation through slow playback to discover nonage upper esophageal carcinoma is the highest.
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