Full report of AAPM Task Group 235 radiochromic film dosimetry: An update to TG-55
Full report of AAPM Task Group 235 radiochromic film dosimetry: An update to TG-55
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DOI：
10.1002/mp.14497
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发表时间：
2020-10-30
期刊：
影响因子：
3.8
通讯作者：
Chan, Maria F.
中科院分区：
文献类型：
--
作者：
Niroomand-Rad, Azam;Chiu-Tsao, Sou-Tung;Chan, Maria F.
放射显色膜（RCF）剂量学在放射治疗中的应用非常广泛，因为它在大剂量范围内具有很高的可实现精度，并且适合于各种测量条件。然而，自从1998年AAPM工作组第55号关于RCF剂量学的第63号报告发表以来，RCF的化学、组成和读出系统稳步发展。在使用新的rcf、读出系统和结果验证方面存在一些挑战，这取决于它们的应用。准确的RCF剂量测定需要了解RCF的选择、处理和校准方法、校准曲线、剂量转换方法、校正方法以及读出系统的选择、操作和质量保证（QA）程序。即使对一些有经验的用户来说，获得这种水平的知识也不是直截了当的。本工作组报告解决了这些问题，并提供了对现有RCF模型、剂量学特征和性质、优点和局限性、结构以及过去20年来RCF的总体元素组成变化的基本理解。此外，本报告还为放射治疗临床应用的数据处理和分析方案以及校正方法提供了具体指南。
The use of radiochromic film (RCF) dosimetry in radiation therapy is extensive due to its high level of achievable accuracy for a wide range of dose values and its suitability under a variety of measurement conditions. However, since the publication of the 1998 AAPM Task Group 55, Report No. 63 on RCF dosimetry, the chemistry, composition, and readout systems for RCFs have evolved steadily. There are several challenges in using the new RCFs, readout systems and validation of the results depending on their applications. Accurate RCF dosimetry requires understanding of RCF selection, handling and calibration methods, calibration curves, dose conversion methods, correction methodologies as well as selection, operation and quality assurance (QA) programs of the readout systems. Acquiring this level of knowledge is not straight forward, even for some experienced users. This Task Group report addresses these issues and provides a basic understanding of available RCF models, dosimetric characteristics and properties, advantages and limitations, configurations, and overall elemental compositions of the RCFs that have changed over the past 20 yr. In addition, this report provides specific guidelines for data processing and analysis schemes and correction methodologies for clinical applications in radiation therapy.