肿瘤放射治疗中低熔点铅适形挡块与MLC运用
李永斌1
作者信息
- 1. 福建医科大学附属漳州市医院 363000
- 折叠
摘要
目的：探讨肿瘤放射治疗中LML（低熔点铅）适形挡块与Multi-Leaf Collimator（MLC,多叶光栅）的使用选择。方法：通过对比照射野适形度，构造，半影，使用方式，维护等。结果：低熔点铅适形挡块的照射适形度一致性较好漏射线少，MLC的时效性更好，为调强放疗的实现提供了条件。结论：LML挡块在普通放疗及非直线固定野三维适形放射治疗(Three-Dimen-sional Conformal Radiotherapy3D-CRT)中有优势，MLC在直线构成的规则或不规则野的3DCRT及调强放疗中有优势。
Abstract
Objective:To discuss the options for LML conformal blocks and MLC in tumor radiotherapy. Methods:By comparing the conformal degree of the exposure field, the structure, the penumbra, the use as well as the maintenance. Results: LML blocks are more consistent in the conformal degree of exposure with low radiation leakage, while MLC is more time-effective and helpful for the realization of IMRT. Conclusion: LML blocks have more advantages in conventional radiotherapy and non-linear 3DCRT, while MLC have more advantages in IMRT as well as regular or irregular 3DCRT formed by straight lines.
关键词
低熔点铅适形挡块/MLC/3DCRT/调强放射治疗Key words
LML blocks/MLC/3DCRT/IMRT引用本文复制引用
出版年
2015
NETL
NSTL
万方数据