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本文讨论了食道上段癌的设野。楔形角度的应用价值,进而比较出胸片侧位脊柱与胸壁的夹角与照射体位时食道与胸壁的夹角相同,这样食道上段癌的楔形角度可以很容易通过胸片侧位测出。
This article discusses the establishment of cancer in the upper esophagus. The application value of the wedge angle is to compare the angle between the spine and the chest wall at the side of the chest radiograph and the angle between the esophagus and the chest wall when the body is irradiated, so that the wedge angle of the upper esophageal cancer can be easily measured through the lateral position of the chest plate.