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751倒食管癌均为单纯放疗,采用两野正中对穿照射法,结果:1、3、5年生存率分别为61.1%、22.8%、11.6%。由于照射野内脊髓的受量偏高,故放射性脊髓炎的发病率也略高(3.73%)。病死率为54.6%,死因以复发和未控为主。两野垂直照射,摆位准确,投照区域与预定位置较一致,故1、3年生存率较高。此法对放疗设备欠佳的基层医疗单位可试用。
The 751 invasive ductal carcinomas were all treated with radiotherapy alone. The two-field median-crossing method was used. Results: The 1-, 3-, and 5-year survival rates were 61.1%, 22.8%, and 11.6%, respectively. Due to the high dose of spinal cord in the field, the incidence of radiation myelitis was slightly higher (3.73%). The mortality rate was 54.6%, and the cause of death was relapse and uncontrolled. The vertical irradiation of the two fields, accurate positioning, projection area and the predetermined location is more consistent, so the 1-year survival rate is higher. This method can be used for basic medical units that have poor radiotherapy equipment.