Technical Note: Development and performance of a software tool for quality assurance of online replanning with a conventional Linac or MR-Linac
Technical Note: Development and performance of a software tool for quality assurance of online replanning with a conventional Linac or MR-Linac
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DOI：
10.1118/1.4943795
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发表时间：
2016-04-01
期刊：
影响因子：
3.8
通讯作者：
Li, X. Allen
中科院分区：
文献类型：
--
作者：
Chen, Guang-Pei;Ahunbay, Ergun;Li, X. Allen
目的：开发一种用于在线重新计划的集成质量保证 (QA) 软件工具，能够高效、自动地检查放射治疗 (RT) 计划参数和总体计划质量，验证从治疗计划系统 (TPS) 到记录和验证 (R&V) 系统的治疗计划数据传输，在存在或不存在 MR-Linac 磁场的情况下执行辅助监测单元 (MU) 计算，并验证交付记录与计划的一致性。方法：开发名为 ArtQA 的软件工具来获取和比较计划和计划来自 TPS 和 R&V 系统数据库的治疗参数。 TPS 数据通过直接文件读取进行访问，R&V 数据通过开放数据库连接和结构化查询语言进行检索。通过计划参数的逻辑一致性和所实现的剂量体积直方图来评估计划质量。 TPS 和 R&V 系统之间的梁根据几何配置进行匹配。为了考虑 MR-Linac 1.5 T 横向磁场在二次 MU 计算中的影响，开发了一种基于改进的 Clarkson 积分算法的方法，并针对一系列临床情况进行了测试。结果：ArtQA 已在他们的临床中使用，可以快速检测整个 RT 计划过程中的不一致和偏差。通过使用ArtQA工具，包括计划质量、数据传输、交付检查在内的计划检查效率可以提高至少60%。新开发的MR-Linac独立MU计算工具将计划和计算出的MU之间的差异减少了10%。结论：软件工具ArtQA可用于对传统Linac或MR-Linac进行从计划到交付的全面QA检查，是需要快速执行QA检查的在线重新计划的必备工具。 (C) 2016 年美国医学物理学家协会。
Purpose: To develop an integrated quality assurance (QA) software tool for online replanning capable of efficiently and automatically checking radiation treatment (RT) planning parameters and gross plan quality, verifying treatment plan data transfer from treatment planning system (TPS) to record and verify (R&V) system, performing a secondary monitor unit (MU) calculation with or without a presence of a magnetic field from MR-Linac, and validating the delivery record consistency with the plan.Methods: The software tool, named ArtQA, was developed to obtain and compare plan and treatment parameters from both the TPS and the R&V system database. The TPS data are accessed via direct file reading and the R& V data are retrieved via open database connectivity and structured query language. Plan quality is evaluated with both the logical consistency of planning parameters and the achieved dose-volume histograms. Beams in between the TPS and R& V system are matched based on geometry configurations. To consider the effect of a 1.5 T transverse magnetic field from MR-Linac in the secondary MU calculation, a method based on modified Clarkson integration algorithm was developed and tested for a series of clinical situations.Results: ArtQA has been used in their clinic and can quickly detect inconsistencies and deviations in the entire RT planning process. With the use of the ArtQA tool, the efficiency for plan check including plan quality, data transfer, and delivery check can be improved by at least 60%. The newly developed independent MU calculation tool for MR-Linac reduces the difference between the plan and calculated MUs by 10%.Conclusions: The software tool ArtQA can be used to perform a comprehensive QA check from planning to delivery with conventional Linac or MR-Linac and is an essential tool for online replanning where the QA check needs to be performed rapidly. (C) 2016 American Association of Physicists in Medicine.