Johansson K A, Horiot J C, van der Schueren E
Department of Radiation Physics, University of Gothenburg, Sahlgren Hospital, Sweden.
Radiother Oncol. 1987 Aug;9(4):289-98. doi: 10.1016/s0167-8140(87)80150-0.
Two papers concerning the quality control study organised by the EORTC (European Organisation for Research on Treatment of Cancer) Cooperative Group on Radiotherapy have been published. The medical profile (part 1) and the dosimetric intercomparison (part 2) of the participating institutions were presented. This part (paper 3) presents an integrated clinical and dosimetric investigation in an anatomical phantom. A tonsillar tumour and a homolateral subdigastric node were marked in an anatomical phantom. The institutions were asked to treat the phantom once like an ordinary patient. The phantom was loaded with dosimeters and irradiated. From the results obtained, it can be concluded that we did not find any major dosimetric problem related to absorbed dose calibration or calculation in the phantom. However, several major problems were related to non-optimal planning, treatment technique and dose distribution. The investigation shows the importance of a quality assurance programme for cooperative groups.
两篇关于欧洲癌症研究与治疗组织（EORTC）放疗合作组组织的质量控制研究的论文已发表。介绍了参与机构的医学概况（第1部分）和剂量学比对（第2部分）。这一部分（论文3）展示了在一个解剖模型中的综合临床和剂量学研究。在一个解剖模型上标记了一个扁桃体肿瘤和同侧二腹肌下淋巴结。要求各机构像对待普通患者一样对该模型进行一次治疗。该模型加载了剂量仪并接受照射。从获得的结果可以得出结论，我们在模型中未发现任何与吸收剂量校准或计算相关的重大剂量学问题。然而，几个主要问题与规划不佳、治疗技术和剂量分布有关。该研究表明了合作组质量保证计划的重要性。
