Department of Radiation Oncology, Mayo Clinic, Rochester, Minnesota, United States of America.
PLoS One. 2020 May 21;15(5):e0233562. doi: 10.1371/journal.pone.0233562. eCollection 2020.
Radiochromic film (RCF) has several advantageous characteristics which make it an attractive dosimeter for many clinical tasks in radiation oncology. However, knowledge of and strict adherence to complicated protocols in order to produce accurate measurements can prohibit RCF from being widely adopted in the clinic. The purpose of this study was to outline some simple and straightforward RCF fundamentals in order to help clinical medical physicists perform accurate RCF measurements. We describe a process and methodology successfully used in our practice with the hope that it saves time and effort for others when implementing RCF in their clinics. Two RCF analysis software programs which differ in cost and complexity, the commercially available FilmQA Pro package and the freely available ImageJ software, were used to show the accuracy, consistency and limitations of each. The process described resulted in a majority of the measurements across a wide dose range to be accurate within ± 2% of the intended dose using either FilmQA Pro or ImageJ.
放射色迹胶片（RCF）具有多种优势特性，使其成为放射肿瘤学中许多临床任务的理想剂量计。然而，为了获得准确的测量结果，需要了解并严格遵守复杂的方案，这可能会阻碍 RCF 在临床上的广泛应用。本研究旨在概述一些简单明了的 RCF 基础知识，以帮助临床医学物理学家进行准确的 RCF 测量。我们描述了一个在我们的实践中成功使用的流程和方法，希望在将 RCF 应用于临床时，为其他人节省时间和精力。我们使用了两种 RCF 分析软件程序，即具有成本效益和复杂性的商业可用的 FilmQA Pro 软件包和免费的 ImageJ 软件，以展示每种软件的准确性、一致性和局限性。所描述的流程使得在广泛的剂量范围内，大多数测量结果都能够使用 FilmQA Pro 或 ImageJ 在预期剂量的 ±2% 内准确测量。
