The prescription dose was 70Gy. PTV dose to 95% volume(D95),the dose to critical organ at risk volume(D5),and mean dose has been used to compare two sets of treatment plans.

• 肿瘤的处方剂量为70 Gy,然后,比较2个治疗计划中肿瘤靶区的95%25容积(D95)受照平均剂量、周围正常组织的5%25容积(D5)受照平均剂量。