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近年来,随之放疗技术的发展,适形放疗技术被广泛应用,医用直线加速器普遍配备标准MLC,MLC的应用使放射治疗效率大大提高,也使静态和动态调强放疗技术的实施成为可能。本研究利用我院两种型号加速器MLC所形成的照射野,结合26例鼻咽癌患者使用的整体挡铅射野,分析各自形成的剂量半影,比较其优劣为使用同类型放疗设备的同行提供借鉴,更好的使用现有设备。
In recent years, along with the development of radiotherapy technology, conformal radiotherapy technology is widely used. The medical linear accelerator is generally equipped with standard MLC. The application of MLC greatly improves the radiotherapy efficiency and makes the implementation of static and dynamic intensity modulated radiotherapy technology possible. In this study, the radiation field formed by two types of accelerator MLC in our hospital was used in combination with the overall blockade of lead used by 26 patients with nasopharyngeal carcinoma to analyze their respective penumbra, and to compare the advantages and disadvantages of using the same type of radiotherapy equipment Peer to learn from, better use of existing equipment.