Quality assurance for image-guided radiation therapy utilizing CT-based technologies: A report of the AAPM TG-179
Quality assurance for image-guided radiation therapy utilizing CT-based technologies: A report of the AAPM TG-179
复制标题
DOI：
10.1118/1.3690466
复制
发表时间：
2012-04-01
期刊：
影响因子：
3.8
通讯作者：
Yoo, Sua
中科院分区：
文献类型：
--
作者：
Bissonnette, Jean-Pierre;Balter, Peter A.;Yoo, Sua
目的：基于商业 CT 的图像引导放射治疗 (IGRT) 系统可以广泛管理患者摆位和内部器官运动的几何变化。本文件为质量保证协议提供了共识建议，以确保此类系统的患者安全和患者治疗保真度。方法：AAPM TG-179 审查市售基于 CT 的 IGRT 的临床实施和质量保证方面，每个方面都有其独特的功能和基础物理原理。所描述的系统是千伏和兆伏锥束 CT、扇束 MVCT 和轨上 CT。还提供了描述当前临床使用的文献摘要。结果：本报告提出了基于 CT 的 IGRT 系统的通用质量保证计划，旨在为临床用户提供独立于供应商的计划。已发布的长期、重复的质量控制测试数据构成了建议的测试频率和公差的基础。结论：已经制定了基于 CT 的图像引导系统的质量控制程序，重点关注几何形状、图像质量、图像剂量、系统操作和安全性。有关 AAPM TG-101、TG-104、TG-142 和 TG-148 报告的协议和澄清已得到解决。 (C) 2012 年美国医学物理学家协会。 [http://dx.doi.org/10.1118/1.3690466]
Purpose: Commercial CT-based image-guided radiotherapy (IGRT) systems allow widespread management of geometric variations in patient setup and internal organ motion. This document provides consensus recommendations for quality assurance protocols that ensure patient safety and patient treatment fidelity for such systems.Methods: The AAPM TG-179 reviews clinical implementation and quality assurance aspects for commercially available CT-based IGRT, each with their unique capabilities and underlying physics. The systems described are kilovolt and megavolt cone-beam CT, fan-beam MVCT, and CT-on-rails. A summary of the literature describing current clinical usage is also provided.Results: This report proposes a generic quality assurance program for CT-based IGRT systems in an effort to provide a vendor-independent program for clinical users. Published data from long-term, repeated quality control tests form the basis of the proposed test frequencies and tolerances.Conclusion: A program for quality control of CT-based image-guidance systems has been produced, with focus on geometry, image quality, image dose, system operation, and safety. Agreement and clarification with respect to reports from the AAPM TG-101, TG-104, TG-142, and TG-148 has been addressed. (C) 2012 American Association of Physicists in Medicine. [http://dx.doi.org/10.1118/1.3690466]