近年放射治疗专业的若干重要课题都在取得进展而形成一些新概念,随之也带来了实践上的变化,致使专业面貌在改观。举其重要的几个方面为例,扼要地介绍如下。一、“放射敏感性”及增敏问题 “敏感性”问题在 In recent years, a number of important issues in the radiotherapy profession have made progress and some new concepts have been formed. As a result, they have also brought about changes in practice, resulting in a change in the professional outlook. Take the important aspects as an example and give a brief introduction. I. “Radiosensitivity” and sensitization problems “Sensitivity” issues