引言 近几年来,随着肿瘤放射治疗事业的发展,放射治疗的质量保证(QA)和质量控制(QC)问题,日益受到肿瘤放疗学界的专家们的重视,并先后召开了两次国际性会议,讨论这个问题。有关国家和地区组织了QA工作网,出版了相应的文件,力图使各部门的肿瘤放疗水平达到地区、国家或国际性水平。 INTRODUCTION In recent years, with the development of cancer radiotherapy, the quality assurance (QA) and quality control (QC) issues of radiation therapy are increasingly valued by experts in the field of tumor radiotherapy, and two international conferences have been held successively. Discuss this issue. The relevant countries and regions have organized QA work networks and published corresponding documents in an effort to make the radiotherapy levels of various departments reach the regional, national or international level.