At present lung tumor radiation therapy has entered the accurate radiotherapy era. Precise radiotherapy includes intensity modulated radiotherapy (IMRT), image-guided radiotherapy (IGRT) and stereotactic body radiotherapy (SBRT). During the process of implementing precise radiotherapy, these problems should be fully considered to ensure executing precise radiotherapy accurately: patient positioning, controlling of the lung tumor motion, selecting of image techniques, PTV margin, dose prescription and reporting, arrangement of beams, controlling of dose volume and treatment delivering.
目前肺部肿瘤的放射治疗已进入精确放疗时代。实施精确放疗的具体方法主要包括：调强放疗（intensity modulated radiotherapy, IMRT）、图像引导放射治疗（image-guided radiotherapy, IGRT）和体部立体定向放射治疗（stereotactic body radiotherapy, SBRT）。在实施精确放疗过程中，对于以下问题：患者体位固定、肺部肿瘤运动的控制、影像技术的使用、PTV边界、剂量的处方和报道、射野的安排、剂量体积的控制和治疗的实施等，应给予充分的考虑和注意，以确保精确放疗能够精确执行。