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MR‐safe personal radiation dosimeters
Magnetic resonance imaging ( MRI) is being rapidly integrated for cancer treatments—such systems are referred to as MRI‐guided radiation therapy (MRIgRT). As the magnet of an MRI scanner is always on, the presence of a strong static magnetic field from the MRI scanner during radiotherapy delivery pr...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5874943/ https://www.ncbi.nlm.nih.gov/pubmed/28585406 http://dx.doi.org/10.1002/acm2.12115 |
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author | Tchistiakova, E. Kim, A. Song, W. Y. Pang, G. |
author_facet | Tchistiakova, E. Kim, A. Song, W. Y. Pang, G. |
author_sort | Tchistiakova, E. |
collection | PubMed |
description | Magnetic resonance imaging ( MRI) is being rapidly integrated for cancer treatments—such systems are referred to as MRI‐guided radiation therapy (MRIgRT). As the magnet of an MRI scanner is always on, the presence of a strong static magnetic field from the MRI scanner during radiotherapy delivery presents new challenges. One of the challenges is that a personal radiation dosimeter used to estimate the radiation dose deposited in an individual wearing the device must be MR‐safe. No such devices, however, are currently available. In this work we first modified an existing personal dosimeter (by removing a metal clip) to make it MR‐safe and then investigated potential effects of magnetic field on dosimeter readings, i.e., optically stimulated luminescent dosimeter (OSLD) readings. We found that the effect of magnetic field on OSLD sensitivity was within radiation protection tolerance levels. OSLD personal dosimeters can be directly used in conjunction with MRIgRT radiation protection purposes. |
format | Online Article Text |
id | pubmed-5874943 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-58749432018-04-02 MR‐safe personal radiation dosimeters Tchistiakova, E. Kim, A. Song, W. Y. Pang, G. J Appl Clin Med Phys Radiation Oncology Physics Magnetic resonance imaging ( MRI) is being rapidly integrated for cancer treatments—such systems are referred to as MRI‐guided radiation therapy (MRIgRT). As the magnet of an MRI scanner is always on, the presence of a strong static magnetic field from the MRI scanner during radiotherapy delivery presents new challenges. One of the challenges is that a personal radiation dosimeter used to estimate the radiation dose deposited in an individual wearing the device must be MR‐safe. No such devices, however, are currently available. In this work we first modified an existing personal dosimeter (by removing a metal clip) to make it MR‐safe and then investigated potential effects of magnetic field on dosimeter readings, i.e., optically stimulated luminescent dosimeter (OSLD) readings. We found that the effect of magnetic field on OSLD sensitivity was within radiation protection tolerance levels. OSLD personal dosimeters can be directly used in conjunction with MRIgRT radiation protection purposes. John Wiley and Sons Inc. 2017-06-06 /pmc/articles/PMC5874943/ /pubmed/28585406 http://dx.doi.org/10.1002/acm2.12115 Text en © 2017 The Authors. Journal of Applied Clinical Medical Physics published by Wiley Periodicals, Inc. on behalf of American Association of Physicists in Medicine. This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Radiation Oncology Physics Tchistiakova, E. Kim, A. Song, W. Y. Pang, G. MR‐safe personal radiation dosimeters |
title |
MR‐safe personal radiation dosimeters |
title_full |
MR‐safe personal radiation dosimeters |
title_fullStr |
MR‐safe personal radiation dosimeters |
title_full_unstemmed |
MR‐safe personal radiation dosimeters |
title_short |
MR‐safe personal radiation dosimeters |
title_sort | mr‐safe personal radiation dosimeters |
topic | Radiation Oncology Physics |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5874943/ https://www.ncbi.nlm.nih.gov/pubmed/28585406 http://dx.doi.org/10.1002/acm2.12115 |
work_keys_str_mv | AT tchistiakovae mrsafepersonalradiationdosimeters AT kima mrsafepersonalradiationdosimeters AT songwy mrsafepersonalradiationdosimeters AT pangg mrsafepersonalradiationdosimeters |