PET/CT在非小细胞肺癌放射治疗中的应用现状

随着多种放射治疗（以下简称“放疗”）技术的发展，放疗已成为非小细胞肺癌（NSCLC）根治性及姑息性治疗的主要方法之一。放疗前准确分期和精确勾画靶区、治疗中评价肿瘤反应和修订治疗方案，放疗后评价疗效及早期检测复发对治疗NSCLC至关重要。PET/CT为功能与解剖融合技术，可提供肿瘤的代谢和形态信息。本文综述PET/CT在NSCLC临床分期、治疗方案选择、放疗靶区勾画、预后及复发评价中的应用现状。

Application status of PET/CT in non-small cell lung cancer with radiotherapy

With the development of a variety of radiotherapy techniques, radiotherapy has become one of the most important methods of radical and palliative treatment for non-small cell lung cancer (NSCLC). Accurate staging and target volume delineation before radiotherapy, evaluation of tumor response and revision of plan during radiotherapy and assessment of effect and early detection of recurrence after radiotherapy are critical components for a successful treatment of NSCLC with radiotherapy. PET/CT is a confluent technique of function and anatomy, which can provide anatomic information of CT and metabolic information of PET. This article reviewed the application status of PET/CT in clinical staging, choosing treatment project, delineating target volume, assessing prognosis and recurrence of NSCLC.