食管癌是常见的恶性肿瘤,对3期以下病例,可进行根治性放射治疗.在无CT和模拟定位机的医院,可采用X线诊断机定位.然后制作体模,用后背二野成角交叉照射法,以减少对脊髓的剂量.此法对肺的照射剂量,也比四、五、六野法少.现将我院的食管癌根治性放疗的体模制作方法介绍如下. Esophageal cancer is a common malignancy. Radical radiotherapy can be performed for patients below the third stage. In hospitals without CT and simulated positioning machines, X-ray diagnostic machines can be used to locate. Then the phantom is made, and the back is used to form a phantom. Cross-angle irradiation method to reduce the dose of spinal cord. This method of lung irradiation dose, but also less than four, five, six wild method. Now our hospital’s radical radiotherapy for esophageal cancer phantom production methods are described below.