论文部分内容阅读
容积旋转调强放射治疗(VMAT)技术作为一种新型的放射治疗(放疗)技术,通过照射过程中机架连续旋转,连续改变剂量率、机架位置和多叶准直器叶片位置等,实现不同射野方向上的射束强度调整。其最大优势在于能达到与传统调强放疗技术相似或更好剂量分布的同时,大大提高了治疗效率。但作为新兴技术,完整的VMAT执行方案还有待开发,现有的临床数据相当有限。头颈部肿瘤因其复杂的解剖结构,对放疗计划质量要求甚高,该文旨在对VMAT在头颈部肿瘤的应用作一综述,以期为VMAT在头颈部肿瘤的临床实施提供循证依据。
Volume Rotating Intensity Modulated Radiation Therapy (VMAT) is a new radiation therapy (radiotherapy) technique that continuously changes the dose rate, the position of the gantry and the leaf position of the multi-leaf collimator by rotating the gantry continuously during irradiation Beam strength adjustment in different field directions. Its biggest advantage is that it can achieve the same or better dose distribution with the traditional IMRT technique and greatly improve the treatment efficiency. However, as a new technology, a complete VMAT implementation plan has yet to be developed, and the existing clinical data is quite limited. Because of its complex anatomy, head and neck cancer has a high demand on the quality of radiotherapy planning. This article aims to review the application of VMAT in head and neck cancer so as to provide evidence for clinical application of VMAT in head and neck cancer in accordance with.