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放射治疗目前常用的每周5—6次的分割法是以临床经验为基础的习惯方法。用此一种分割方法去治疗各种恶性肿瘤,并企图使其适应不同肿瘤细胞的动力学是绝非理想的。为了提高放疗的疗效,不少人在临床实践中对时间—剂量因素,做了大量的探讨。本文拟对超分割放射治疗(每周五天,每天三次)对食管癌的放疗效果与常规放疗(每周五天,每天一次)的疗效进行对比,以期初步认识此种方法的优缺点。
Radiation therapy is currently used in the 5-6 times per week segmentation method is a customary method based on clinical experience. It is not ideal to use such a segmentation method to treat various malignant tumors and attempt to adapt them to the dynamics of different tumor cells. In order to improve the efficacy of radiotherapy, many people have done a lot of research on the time-dose factors in clinical practice. This article intends to compare the radiotherapy effect of hyperfractionated radiotherapy (five days a week, three times a day) on esophageal cancer with conventional radiotherapy (five days a week, once a day), with a view to a preliminary understanding of the advantages and disadvantages of this method.