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Methodology for radiochromic film analysis using FilmQA Pro and ImageJ
Journal article   Open access   Peer reviewed

Methodology for radiochromic film analysis using FilmQA Pro and ImageJ

Michelle E Howard, Michael G Herman and Michael P Grams
PloS one, Vol.15(5), pp.e0233562-e0233562
2020
DOI: 10.1371/journal.pone.0233562
PMID: 32437474
url
https://doi.org/10.1371/journal.pone.0233562View
Published (Version of record) Open Access

Abstract

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.

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