COMPARISON OF DIFFERENT TECHNIQUES FOR EVALUATION OF DOSE DISTRIBUTIONS IN RADIOTHERAPY USING RADIOCHROMIC EBT3 FILMS
Jazyk angličtina Země Anglie, Velká Británie Médium print
Typ dokumentu srovnávací studie, hodnotící studie, časopisecké články
PubMed
31711200
DOI
10.1093/rpd/ncz231
PII: 5618731
Knihovny.cz E-zdroje
- MeSH
- algoritmy MeSH
- celková dávka radioterapie MeSH
- fantomy radiodiagnostické * MeSH
- filmová dozimetrie přístrojové vybavení metody MeSH
- kalibrace MeSH
- lidé MeSH
- nádory prostaty radioterapie MeSH
- plánování radioterapie pomocí počítače metody MeSH
- radioterapie s modulovanou intenzitou metody MeSH
- záření gama MeSH
- Check Tag
- lidé MeSH
- mužské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- hodnotící studie MeSH
- srovnávací studie MeSH
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.
Department of Radiological Physics Na Bulovce Hospital Prague Czech Republic
Medical Exposure Section National Radiation Protection Institute Prague Czech Republic
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