Dose calculation accuracy of lung planning with a commercial IMRT treatment planning system

The dose calculation accuracy of a commercial pencil beam IMRT planning system is evaluated by comparison with Monte Carlo calculations and measurements in an anthropomorphic phantom. The target volume is in the right lung and mediastinum and thus significant tissue inhomogeneities are present. The...

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Detalles Bibliográficos
Autores principales: McDermott, Patrick N., He, Tongming, DeYoung, A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2003
Materias:
Radiation Oncology Physics
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5724454/
https://www.ncbi.nlm.nih.gov/pubmed/14604424
http://dx.doi.org/10.1120/jacmp.v4i4.2505
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author McDermott, Patrick N.
He, Tongming
DeYoung, A.
author_facet McDermott, Patrick N.
He, Tongming
DeYoung, A.
author_sort McDermott, Patrick N.
collection PubMed
description The dose calculation accuracy of a commercial pencil beam IMRT planning system is evaluated by comparison with Monte Carlo calculations and measurements in an anthropomorphic phantom. The target volume is in the right lung and mediastinum and thus significant tissue inhomogeneities are present. The Monte Carlo code is an adaptation of the msnp code and the measurements were made with TLD and film. Both the Monte Carlo code and the measurements show very good agreement with the treatment planning system except in regions where the dose is high and the electron density is low. In these regions the commercial system shows doses up to 10% higher than Monte Carlo and film. The average calculated dose for the CTV is 5% higher with the commercial system as compared to Monte Carlo. PACS number(s): 87.53.‐j, 87.66.‐a
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spelling pubmed-57244542018-04-02 Dose calculation accuracy of lung planning with a commercial IMRT treatment planning system McDermott, Patrick N. He, Tongming DeYoung, A. J Appl Clin Med Phys Radiation Oncology Physics The dose calculation accuracy of a commercial pencil beam IMRT planning system is evaluated by comparison with Monte Carlo calculations and measurements in an anthropomorphic phantom. The target volume is in the right lung and mediastinum and thus significant tissue inhomogeneities are present. The Monte Carlo code is an adaptation of the msnp code and the measurements were made with TLD and film. Both the Monte Carlo code and the measurements show very good agreement with the treatment planning system except in regions where the dose is high and the electron density is low. In these regions the commercial system shows doses up to 10% higher than Monte Carlo and film. The average calculated dose for the CTV is 5% higher with the commercial system as compared to Monte Carlo. PACS number(s): 87.53.‐j, 87.66.‐a John Wiley and Sons Inc. 2003-09-01 /pmc/articles/PMC5724454/ /pubmed/14604424 http://dx.doi.org/10.1120/jacmp.v4i4.2505 Text en © 2003 The Authors. This is an open access article under the terms of the Creative Commons Attribution (http://creativecommons.org/licenses/by/3.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Radiation Oncology Physics
McDermott, Patrick N.
He, Tongming
DeYoung, A.
Dose calculation accuracy of lung planning with a commercial IMRT treatment planning system
title Dose calculation accuracy of lung planning with a commercial IMRT treatment planning system
title_full Dose calculation accuracy of lung planning with a commercial IMRT treatment planning system
title_fullStr Dose calculation accuracy of lung planning with a commercial IMRT treatment planning system
title_full_unstemmed Dose calculation accuracy of lung planning with a commercial IMRT treatment planning system
title_short Dose calculation accuracy of lung planning with a commercial IMRT treatment planning system
title_sort dose calculation accuracy of lung planning with a commercial imrt treatment planning system
topic Radiation Oncology Physics
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5724454/
https://www.ncbi.nlm.nih.gov/pubmed/14604424
http://dx.doi.org/10.1120/jacmp.v4i4.2505
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