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对肿瘤(本文专指上皮组织来源的癌)放疗方案的优选为临床放疗医师所关注。本文根据测算放疗方案的生物学效应剂量BED和正常化等效剂量NID两模式,按不同Tpot值分别计算出10种较新颖、先进和较常用的放疗方案对肿瘤和对晚期损伤正常组织的BED和NID值,作为方案优选的依据。同时报道肿瘤Tpot值的多样性和影响模式计算结果因素的复杂性。介绍较新颖方案使用的急性放射反应发生情况,并指出在每天多次照射时需注意避免并发放射性脊髓病。
The preference for radiotherapy regimens for tumors (specifically epithelial tissue-derived cancers in this article) is of interest to clinical radiotherapists. In this paper, according to the calculation of radiation therapy program biological effect dose BED and normalized equivalent dose NID two modes, according to different Tpot values calculated 10 kinds of new, advanced and more commonly used radiotherapy plan for tumor and late damage normal tissue BED And NID value, as a basis for the preferred program. At the same time, the diversity of tumor Tpot values and the complexity of factors affecting the model calculation results are reported. Introduce the occurrence of acute radiation reactions used in the newer protocols, and pointed out that multiple radiation should be used to avoid concurrent radiation myelopathy.