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Comparison of effective dose for imaging of mandible between multi-detector CT and cone-beam CT

PURPOSE: The aim of this study was to compare the effective dose for imaging of mandible between multi-detector computed tomography (MDCT) and cone-beam computed tomography (CBCT). An MDCT with low dose technique was also compared with them. MATERIALS AND METHODS: Thermoluminescent dosimeter (TLD) c...

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Autores principales: Jeong, Dae-Kyo, Lee, Sang-Chul, Huh, Kyung-Hoe, Yi, Won-Jin, Heo, Min-Suk, Lee, Sam-Sun, Choi, Soon-Chul
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Korean Academy of Oral and Maxillofacial Radiology 2012
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3389051/
https://www.ncbi.nlm.nih.gov/pubmed/22783473
http://dx.doi.org/10.5624/isd.2012.42.2.65
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author Jeong, Dae-Kyo
Lee, Sang-Chul
Huh, Kyung-Hoe
Yi, Won-Jin
Heo, Min-Suk
Lee, Sam-Sun
Choi, Soon-Chul
author_facet Jeong, Dae-Kyo
Lee, Sang-Chul
Huh, Kyung-Hoe
Yi, Won-Jin
Heo, Min-Suk
Lee, Sam-Sun
Choi, Soon-Chul
author_sort Jeong, Dae-Kyo
collection PubMed
description PURPOSE: The aim of this study was to compare the effective dose for imaging of mandible between multi-detector computed tomography (MDCT) and cone-beam computed tomography (CBCT). An MDCT with low dose technique was also compared with them. MATERIALS AND METHODS: Thermoluminescent dosimeter (TLD) chips were placed at 25 organ sites of an anthropomorphic phantom. The mandible of the phantom was exposed using 2 different types of MDCT units (Somatom Sensation 10 for standard-dose MDCT, Somatom Emotion 6 for low-dose MDCT) and 3 different CBCT units (AZ3000CT, Implagraphy, and Kavo 3D eXaM). The radiation absorbed dose was measured and the effective dose was calculated according to the ICRP 2007 report. RESULTS: The effective dose was the highest for Somatom Sensation 10 (425.84 µSv), followed by AZ3000CT (332.4 µSv), Somatom Emotion 6 (199.38 µSv), and 3D eXaM (111.6 µSv); it was the lowest for Implagraphy (83.09 µSv). The CBCT showed significant variation in dose level with different device. CONCLUSION: The effective doses of MDCTs were not significantly different from those of CBCTs for imaging of mandible. The effective dose of MDCT could be markedly decreased by using the low-dose technique.
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spelling pubmed-33890512012-07-10 Comparison of effective dose for imaging of mandible between multi-detector CT and cone-beam CT Jeong, Dae-Kyo Lee, Sang-Chul Huh, Kyung-Hoe Yi, Won-Jin Heo, Min-Suk Lee, Sam-Sun Choi, Soon-Chul Imaging Sci Dent Original Article PURPOSE: The aim of this study was to compare the effective dose for imaging of mandible between multi-detector computed tomography (MDCT) and cone-beam computed tomography (CBCT). An MDCT with low dose technique was also compared with them. MATERIALS AND METHODS: Thermoluminescent dosimeter (TLD) chips were placed at 25 organ sites of an anthropomorphic phantom. The mandible of the phantom was exposed using 2 different types of MDCT units (Somatom Sensation 10 for standard-dose MDCT, Somatom Emotion 6 for low-dose MDCT) and 3 different CBCT units (AZ3000CT, Implagraphy, and Kavo 3D eXaM). The radiation absorbed dose was measured and the effective dose was calculated according to the ICRP 2007 report. RESULTS: The effective dose was the highest for Somatom Sensation 10 (425.84 µSv), followed by AZ3000CT (332.4 µSv), Somatom Emotion 6 (199.38 µSv), and 3D eXaM (111.6 µSv); it was the lowest for Implagraphy (83.09 µSv). The CBCT showed significant variation in dose level with different device. CONCLUSION: The effective doses of MDCTs were not significantly different from those of CBCTs for imaging of mandible. The effective dose of MDCT could be markedly decreased by using the low-dose technique. Korean Academy of Oral and Maxillofacial Radiology 2012-06 2012-06-25 /pmc/articles/PMC3389051/ /pubmed/22783473 http://dx.doi.org/10.5624/isd.2012.42.2.65 Text en Copyright © 2012 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
Jeong, Dae-Kyo
Lee, Sang-Chul
Huh, Kyung-Hoe
Yi, Won-Jin
Heo, Min-Suk
Lee, Sam-Sun
Choi, Soon-Chul
Comparison of effective dose for imaging of mandible between multi-detector CT and cone-beam CT
title Comparison of effective dose for imaging of mandible between multi-detector CT and cone-beam CT
title_full Comparison of effective dose for imaging of mandible between multi-detector CT and cone-beam CT
title_fullStr Comparison of effective dose for imaging of mandible between multi-detector CT and cone-beam CT
title_full_unstemmed Comparison of effective dose for imaging of mandible between multi-detector CT and cone-beam CT
title_short Comparison of effective dose for imaging of mandible between multi-detector CT and cone-beam CT
title_sort comparison of effective dose for imaging of mandible between multi-detector ct and cone-beam ct
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3389051/
https://www.ncbi.nlm.nih.gov/pubmed/22783473
http://dx.doi.org/10.5624/isd.2012.42.2.65
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