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Estimation of the effective dose of dental cone-beam computed tomography using personal computer-based Monte Carlo software

PURPOSE: To calculate the effective doses of cone-beam computed tomography (CBCT) using personal computer-based Monte Carlo (PCXMC) software (Radiation and Nuclear Safety Authority, Helsinki, Finland) and to compare the calculated effective doses with those measured using thermoluminescent dosimeter...

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Autores principales: Kim, Eun-Kyung, Han, Won-Jeong, Choi, Jin-Woo, Battulga, Bulgan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Korean Academy of Oral and Maxillofacial Radiology 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5863016/
https://www.ncbi.nlm.nih.gov/pubmed/29581946
http://dx.doi.org/10.5624/isd.2018.48.1.21
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author Kim, Eun-Kyung
Han, Won-Jeong
Choi, Jin-Woo
Battulga, Bulgan
author_facet Kim, Eun-Kyung
Han, Won-Jeong
Choi, Jin-Woo
Battulga, Bulgan
author_sort Kim, Eun-Kyung
collection PubMed
description PURPOSE: To calculate the effective doses of cone-beam computed tomography (CBCT) using personal computer-based Monte Carlo (PCXMC) software (Radiation and Nuclear Safety Authority, Helsinki, Finland) and to compare the calculated effective doses with those measured using thermoluminescent dosimeters (TLDs) and an anthropomorphic phantom. MATERIALS AND METHODS: An Alphard VEGA CBCT scanner (Asahi Roentgen Ind. Co., Kyoto, Japan) with multiple fields of view (FOVs) was used for this study. The effective doses of the scout and main projections of CBCT using 1 large and 2 medium FOVs with a height >10 cm were calculated using PCXMC and PCXMCRotation software and then were compared with the doses obtained using TLD-100 LiF and an anthropomorphic adult human male phantom. Furthermore, it was described how to determine the reference points on the Y- and Z-axes in PCXMC, the important dose-determining factors in this software. RESULTS: The effective doses at CBCT for 1 large (20.0 cm×17.9 cm) and 2 medium FOVs (15.4 cm×15.4 cm and 10.2 cm×10.2 cm) calculated by the PCXMC software were 181, 300, and 158 µSv, respectively. These values were comparable (16%–18% smaller) to those obtained through TLD measurements in each mode. CONCLUSION: The use of PCXMC software could be an alternative to the TLD measurement method for effective dose estimation in CBCT with large and medium FOVs.
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spelling pubmed-58630162018-03-26 Estimation of the effective dose of dental cone-beam computed tomography using personal computer-based Monte Carlo software Kim, Eun-Kyung Han, Won-Jeong Choi, Jin-Woo Battulga, Bulgan Imaging Sci Dent Original Article PURPOSE: To calculate the effective doses of cone-beam computed tomography (CBCT) using personal computer-based Monte Carlo (PCXMC) software (Radiation and Nuclear Safety Authority, Helsinki, Finland) and to compare the calculated effective doses with those measured using thermoluminescent dosimeters (TLDs) and an anthropomorphic phantom. MATERIALS AND METHODS: An Alphard VEGA CBCT scanner (Asahi Roentgen Ind. Co., Kyoto, Japan) with multiple fields of view (FOVs) was used for this study. The effective doses of the scout and main projections of CBCT using 1 large and 2 medium FOVs with a height >10 cm were calculated using PCXMC and PCXMCRotation software and then were compared with the doses obtained using TLD-100 LiF and an anthropomorphic adult human male phantom. Furthermore, it was described how to determine the reference points on the Y- and Z-axes in PCXMC, the important dose-determining factors in this software. RESULTS: The effective doses at CBCT for 1 large (20.0 cm×17.9 cm) and 2 medium FOVs (15.4 cm×15.4 cm and 10.2 cm×10.2 cm) calculated by the PCXMC software were 181, 300, and 158 µSv, respectively. These values were comparable (16%–18% smaller) to those obtained through TLD measurements in each mode. CONCLUSION: The use of PCXMC software could be an alternative to the TLD measurement method for effective dose estimation in CBCT with large and medium FOVs. Korean Academy of Oral and Maxillofacial Radiology 2018-03 2018-03-19 /pmc/articles/PMC5863016/ /pubmed/29581946 http://dx.doi.org/10.5624/isd.2018.48.1.21 Text en Copyright © 2018 by Korean Academy of Oral and Maxillofacial Radiology http://creativecommons.org/licenses/by-nc/3.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Kim, Eun-Kyung
Han, Won-Jeong
Choi, Jin-Woo
Battulga, Bulgan
Estimation of the effective dose of dental cone-beam computed tomography using personal computer-based Monte Carlo software
title Estimation of the effective dose of dental cone-beam computed tomography using personal computer-based Monte Carlo software
title_full Estimation of the effective dose of dental cone-beam computed tomography using personal computer-based Monte Carlo software
title_fullStr Estimation of the effective dose of dental cone-beam computed tomography using personal computer-based Monte Carlo software
title_full_unstemmed Estimation of the effective dose of dental cone-beam computed tomography using personal computer-based Monte Carlo software
title_short Estimation of the effective dose of dental cone-beam computed tomography using personal computer-based Monte Carlo software
title_sort estimation of the effective dose of dental cone-beam computed tomography using personal computer-based monte carlo software
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5863016/
https://www.ncbi.nlm.nih.gov/pubmed/29581946
http://dx.doi.org/10.5624/isd.2018.48.1.21
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