Abstract:
:In radiotherapy, radiochromic films can be used for verification of delivery of dose distributions calculated by treatment planning systems. The main objective of this work was to compare three different techniques for evaluation of dose distributions for prostate cancer treatment plans using radiochromic EBT3 films. These techniques are: red channel evaluation taking into account only a response of irradiated film (R), red channel evaluation taking into account a response of unirradiated and irradiated film (Rcor) and multichannel evaluation in FilmQA software (RGB). Also comparison between film and MatriXX measurement was performed. Comparison showed that gamma analysis passing rates strongly depend on evaluation technique and on a model of scanner for digitizing films. The highest gamma passing rates were obtained with red channel evaluation taking into account a response of unirradiated and irradiated film using Epson V750 scanner (Rcor) and multichannel evaluation in FilmQA using Epson 11000XL scanner.
journal_name
Radiat Prot Dosimetryjournal_title
Radiation protection dosimetryauthors
Dufek V,Horakova I,Koniarova Idoi
10.1093/rpd/ncz231subject
Has Abstractpub_date
2019-12-31 00:00:00pages
357-361issue
2-3eissn
0144-8420issn
1742-3406pii
5618731journal_volume
186pub_type
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