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作者根据TDF(time,dose及fractionation时间、剂量及分级)值对30例用高剂量率作腔内照射的子宫颈瘤评价了最佳的时间-剂量关系。本组7例为Ⅰ期,8例为Ⅱ期,12例为Ⅲ期,3例为Ⅳ期。年龄35～79岁,平均63岁。外照射用~(60)钴远距离治疗机,腔内照射用Ralstron-20A遥控后装系统。宫内管含2个1Ci~(60)钴源(珠),纵排,间距1 cm,治疗期间逐渐从宫底向宫颈口退回,阴道每个含1 Ci之卵园形钴源,病人治疗时取截石位。腔内照射时全部病人A点平均总量为30Gy(戈瑞,吸收剂量),每周1次6 Gy。Ⅰ、Ⅱ期病人
The authors evaluated the optimal time-dose relationship of 30 patients with endometriosis treated with high dose radiation according to TDF (time, dose and fractionation time, dose, and fraction) values. The group of 7 cases of stage Ⅰ, 8 cases of stage Ⅱ, 12 cases of stage Ⅲ, 3 cases of stage Ⅳ. Age 35 to 79 years old, average 63 years old. External irradiation with ~ (60) cobalt remote treatment machine, cavity irradiation with Ralstron-20A remote control after the loading system. Intrauterine tube containing two 1Ci ~ (60) cobalt source (beads), longitudinal row, spacing 1 cm, gradually from the end of the uterus to the cervix during the return of the vagina, each with 1 Ci in the egg-shaped circular cobalt source, the patient treatment Take lithotomy position. All patients in the cavity when the average A point total 30Gy (Gary, absorbed dose), once a week 6 Gy. Ⅰ, Ⅱ patients