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作者对于1976年～1985年间在加拿大、英国和美国的9家单位接受根治性单纯外照射放射治疗的676例扁桃体鳞癌患者进行了回顾性分析,以了解不同分次治疗方式下单次剂量、总的治疗时间和总剂量等因素对不同期别的肿瘤局部控制效果的影响程度。 所有患者的随诊时间均在三年以上。作者将来自不同单位所采用放疗技术的参数(包括治疗技术类型、采用射线的能量、射野、单次照射剂量、总剂量和治疗时间)以及患者肿瘤的临床分期、全身情况和随访资料进行审核和标准化处理后,以线性二次模
The authors retrospectively reviewed 676 patients with tonsillar squamous cell carcinoma who underwent radical external beam radiotherapy alone in nine units in Canada, the United Kingdom and the United States between 1976 and 1985 to understand the effects of single dose, Total treatment time and total dose and other factors on different stages of the tumor local control effect degree. All patients were followed up for more than three years. Authors reviewed the parameters of the radiotherapy technique (including the type of therapy used, the energy used to irradiate the beam, the single exposure dose, the total dose, and the duration of the treatment) from the radiotherapy techniques used by the different units and the clinical staging, general condition and follow-up data of the patient’s tumor And normalized to linear quadratic mode