我科于1987年3月～1987年9月对食管癌病人用三种分割方法进行前瞻性随机临床放疗研究,以探讨其疗效有何不同。80例病人随机分为常规分割组(A组)D_T6000～7000cGy/30～35次/6～7周,1次/日,200cGy/次;快速超分割每天2次组(B组)D_T51000cGy/34次/23天,2次/日,150cGy/次;快速超分割每天3次组(C组)D_T5000cGy/50次/23天,3次/日,100cGy/次。三组病人临床情况基本相似。治疗方法均采用 In our department, from March 1987 to September 1987, we conducted prospective randomized clinical radiotherapy studies on patients with esophageal cancer using three methods of segmentation to investigate their differences in efficacy. 80 patients were randomly divided into the conventional segmentation group (group A) D_T6000 ~ 7000cGy/30 ~ 35 times / 6 ~ 7 weeks, once / day, 200cGy / times; rapid hyperfractionated twice a day group (group B) D_T51000cGy/34 Times/23 days, 2 times/day, 150 cGy/times; Rapid hyperfractionation 3 times per day (group C) D_T5000cGy/50 times/23 days, 3 times/day, 100 cGy/times. The clinical status of the three groups of patients was basically similar. Treatment methods are used