Evaluation of skin doses for cone-beam computed tomography in dentomaxillofacial imaging: A preclinical study.

<h4>Purpose</h4>Evaluation of skin organ doses in six different cone-beam computed tomography scanners (CBCT) dedicated to dentomaxillofacial imaging. Our hypothesis is that the dose varies between different devices, protocols and skin areas.<h4>Materials and methods</h4>An a...

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Autores principales:	Carolin Sophie Reidelbach, Jakob Neubauer, Maximilian Frederik Russe, Jan Kusterer, Wiebke Semper-Hogg
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/23b0cdc4923b4125a229e1d3781b56eb
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spelling	oai:doaj.org-article:23b0cdc4923b4125a229e1d3781b56eb2021-12-02T20:15:27ZEvaluation of skin doses for cone-beam computed tomography in dentomaxillofacial imaging: A preclinical study.1932-620310.1371/journal.pone.0254510https://doaj.org/article/23b0cdc4923b4125a229e1d3781b56eb2021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0254510https://doaj.org/toc/1932-6203<h4>Purpose</h4>Evaluation of skin organ doses in six different cone-beam computed tomography scanners (CBCT) dedicated to dentomaxillofacial imaging. Our hypothesis is that the dose varies between different devices, protocols and skin areas.<h4>Materials and methods</h4>An anthropomorphic adult head and neck phantom was used to which a dosimeter (Waterproof Farmer® Chamber, PTW, Freiburg, Germany) was attached to anatomic landmarks of both parotid glands, both ocular lenses, the thyroid gland and the neurocranium. CBCT examinations were performed on six different CBCT devices dedicated to dentomaxillofacial imaging with standard settings and, if available, also in high dose settings. Measurements were repeated five times each.<h4>Results</h4>The measured mean skin doses ranged from 0.48 to 2.21 mGy. The comparison of the region based dose evaluation showed a high correlation between the single measurements. Furthermore, the distribution of doses between regions was similar in all devices, except that four devices showed side differences for the dose of the parotid region and one device showed side differences for the lens region. The directly exposed regions, such as the parotid glands, showed significant higher values than the more distant regions like the neurocranium. When comparing examination protocols, a significant difference between the standard dose and the high dose acquisitions could be detected. But also a significant dose difference between the different CBCTs could be shown. 3D Accuitomo 170 (Morita, Osaka, Japan) showed the highest absorbed mean dose value for standard settings with 2.21 mGy, especially at the directly exposed regions and their adjacent organs. The lowest mean value for standard settings was achieved with VGi evo (NewTom, Verona, Italy) with 0.48 mGy.<h4>Conclusion</h4>Repeated measurements of skin organ doses in six different CBCT scanners using a surface dosimeter showed side differences in distribution of dose in five devices for the parotid and lens region. Additionally, significant dose differences between the devices could be detected. Further studies should be performed to confirm these results.Carolin Sophie ReidelbachJakob NeubauerMaximilian Frederik RusseJan KustererWiebke Semper-HoggPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 7, p e0254510 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Carolin Sophie Reidelbach Jakob Neubauer Maximilian Frederik Russe Jan Kusterer Wiebke Semper-Hogg Evaluation of skin doses for cone-beam computed tomography in dentomaxillofacial imaging: A preclinical study.
description	<h4>Purpose</h4>Evaluation of skin organ doses in six different cone-beam computed tomography scanners (CBCT) dedicated to dentomaxillofacial imaging. Our hypothesis is that the dose varies between different devices, protocols and skin areas.<h4>Materials and methods</h4>An anthropomorphic adult head and neck phantom was used to which a dosimeter (Waterproof Farmer® Chamber, PTW, Freiburg, Germany) was attached to anatomic landmarks of both parotid glands, both ocular lenses, the thyroid gland and the neurocranium. CBCT examinations were performed on six different CBCT devices dedicated to dentomaxillofacial imaging with standard settings and, if available, also in high dose settings. Measurements were repeated five times each.<h4>Results</h4>The measured mean skin doses ranged from 0.48 to 2.21 mGy. The comparison of the region based dose evaluation showed a high correlation between the single measurements. Furthermore, the distribution of doses between regions was similar in all devices, except that four devices showed side differences for the dose of the parotid region and one device showed side differences for the lens region. The directly exposed regions, such as the parotid glands, showed significant higher values than the more distant regions like the neurocranium. When comparing examination protocols, a significant difference between the standard dose and the high dose acquisitions could be detected. But also a significant dose difference between the different CBCTs could be shown. 3D Accuitomo 170 (Morita, Osaka, Japan) showed the highest absorbed mean dose value for standard settings with 2.21 mGy, especially at the directly exposed regions and their adjacent organs. The lowest mean value for standard settings was achieved with VGi evo (NewTom, Verona, Italy) with 0.48 mGy.<h4>Conclusion</h4>Repeated measurements of skin organ doses in six different CBCT scanners using a surface dosimeter showed side differences in distribution of dose in five devices for the parotid and lens region. Additionally, significant dose differences between the devices could be detected. Further studies should be performed to confirm these results.
format	article
author	Carolin Sophie Reidelbach Jakob Neubauer Maximilian Frederik Russe Jan Kusterer Wiebke Semper-Hogg
author_facet	Carolin Sophie Reidelbach Jakob Neubauer Maximilian Frederik Russe Jan Kusterer Wiebke Semper-Hogg
author_sort	Carolin Sophie Reidelbach
title	Evaluation of skin doses for cone-beam computed tomography in dentomaxillofacial imaging: A preclinical study.
title_short	Evaluation of skin doses for cone-beam computed tomography in dentomaxillofacial imaging: A preclinical study.
title_full	Evaluation of skin doses for cone-beam computed tomography in dentomaxillofacial imaging: A preclinical study.
title_fullStr	Evaluation of skin doses for cone-beam computed tomography in dentomaxillofacial imaging: A preclinical study.
title_full_unstemmed	Evaluation of skin doses for cone-beam computed tomography in dentomaxillofacial imaging: A preclinical study.
title_sort	evaluation of skin doses for cone-beam computed tomography in dentomaxillofacial imaging: a preclinical study.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/23b0cdc4923b4125a229e1d3781b56eb
work_keys_str_mv	AT carolinsophiereidelbach evaluationofskindosesforconebeamcomputedtomographyindentomaxillofacialimagingapreclinicalstudy AT jakobneubauer evaluationofskindosesforconebeamcomputedtomographyindentomaxillofacialimagingapreclinicalstudy AT maximilianfrederikrusse evaluationofskindosesforconebeamcomputedtomographyindentomaxillofacialimagingapreclinicalstudy AT jankusterer evaluationofskindosesforconebeamcomputedtomographyindentomaxillofacialimagingapreclinicalstudy AT wiebkesemperhogg evaluationofskindosesforconebeamcomputedtomographyindentomaxillofacialimagingapreclinicalstudy
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Evaluation of skin doses for cone-beam computed tomography in dentomaxillofacial imaging: A preclinical study.

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