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Diode‐based transmission detector for IMRT delivery monitoring: a validation study
The purpose of this work was to evaluate the potential of a new transmission detector for real‐time quality assurance of dynamic‐MLC‐based radiotherapy. The accuracy of detecting dose variation and static/dynamic MLC position deviations was measured, as well as the impact of the device on the radiat...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5874094/ https://www.ncbi.nlm.nih.gov/pubmed/27685115 http://dx.doi.org/10.1120/jacmp.v17i5.6204 |
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author | Li, Taoran Wu, Q. Jackie Matzen, Thomas Yin, Fang‐Fang O'Daniel, Jennifer C. |
author_facet | Li, Taoran Wu, Q. Jackie Matzen, Thomas Yin, Fang‐Fang O'Daniel, Jennifer C. |
author_sort | Li, Taoran |
collection | PubMed |
description | The purpose of this work was to evaluate the potential of a new transmission detector for real‐time quality assurance of dynamic‐MLC‐based radiotherapy. The accuracy of detecting dose variation and static/dynamic MLC position deviations was measured, as well as the impact of the device on the radiation field (surface dose, transmission). Measured dose variations agreed with the known variations within 0.3%. The measurement of static and dynamic MLC position deviations matched the known deviations with high accuracy (0.7–1.2 mm). The absorption of the device was minimal ([Formula: see text]). The increased surface dose was small (1%–9%) but, when added to existing collimator scatter effects could become significant at large field sizes ([Formula: see text]). Overall the accuracy and speed of the device show good potential for real‐time quality assurance. PACS number(s): 87.55.Qr |
format | Online Article Text |
id | pubmed-5874094 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-58740942018-04-02 Diode‐based transmission detector for IMRT delivery monitoring: a validation study Li, Taoran Wu, Q. Jackie Matzen, Thomas Yin, Fang‐Fang O'Daniel, Jennifer C. J Appl Clin Med Phys Radiation Oncology Physics The purpose of this work was to evaluate the potential of a new transmission detector for real‐time quality assurance of dynamic‐MLC‐based radiotherapy. The accuracy of detecting dose variation and static/dynamic MLC position deviations was measured, as well as the impact of the device on the radiation field (surface dose, transmission). Measured dose variations agreed with the known variations within 0.3%. The measurement of static and dynamic MLC position deviations matched the known deviations with high accuracy (0.7–1.2 mm). The absorption of the device was minimal ([Formula: see text]). The increased surface dose was small (1%–9%) but, when added to existing collimator scatter effects could become significant at large field sizes ([Formula: see text]). Overall the accuracy and speed of the device show good potential for real‐time quality assurance. PACS number(s): 87.55.Qr John Wiley and Sons Inc. 2016-09-08 /pmc/articles/PMC5874094/ /pubmed/27685115 http://dx.doi.org/10.1120/jacmp.v17i5.6204 Text en © 2016 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 Li, Taoran Wu, Q. Jackie Matzen, Thomas Yin, Fang‐Fang O'Daniel, Jennifer C. Diode‐based transmission detector for IMRT delivery monitoring: a validation study |
title | Diode‐based transmission detector for IMRT delivery monitoring: a validation study |
title_full | Diode‐based transmission detector for IMRT delivery monitoring: a validation study |
title_fullStr | Diode‐based transmission detector for IMRT delivery monitoring: a validation study |
title_full_unstemmed | Diode‐based transmission detector for IMRT delivery monitoring: a validation study |
title_short | Diode‐based transmission detector for IMRT delivery monitoring: a validation study |
title_sort | diode‐based transmission detector for imrt delivery monitoring: a validation study |
topic | Radiation Oncology Physics |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5874094/ https://www.ncbi.nlm.nih.gov/pubmed/27685115 http://dx.doi.org/10.1120/jacmp.v17i5.6204 |
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