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适形调强放射治疗(intensity modulated radiationtheraphy,IMRT)是近十年在三维适形放射治疗的基础上发展起来的一种崭新的放射技术[1],IMRT的设计主要致力于受常规放疗的限制部分,同时又要对肿瘤组织的照射不能限制。其目的是想通过调节入射束流形状的同时对束流强度进行调节
Intensity modulated radiation therapy (IMRT) is a brand new radiotherapy technology developed in recent ten years on the basis of three-dimensional conformal radiotherapy [1]. The design of IMRT mainly focuses on the limitations of conventional radiotherapy Part, but also on the irradiation of tumor tissue can not be limited. The purpose is to adjust the beam intensity by adjusting the shape of the incident beam