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Accuracy of automatic matching of Catphan 504 phantom in cone‐beam computed tomography for tube current–exposure time product
The purpose of this study is to evaluate the accuracy of automatic matching in cone‐beam computed tomography (CBCT) images relative to the reduction of total tube current–exposure time product (mAs) for the X‐ray imaging (XI) system. The CBCT images were acquired with the Catphan 504 phantom various...
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/PMC5690535/ https://www.ncbi.nlm.nih.gov/pubmed/27929513 http://dx.doi.org/10.1120/jacmp.v17i6.6402 |
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author | Won, Hui‐Su Chung, Jin‐Beom Choi, Byung‐Don Park, Jin‐Hong Hwang, Do‐Guwn |
author_facet | Won, Hui‐Su Chung, Jin‐Beom Choi, Byung‐Don Park, Jin‐Hong Hwang, Do‐Guwn |
author_sort | Won, Hui‐Su |
collection | PubMed |
description | The purpose of this study is to evaluate the accuracy of automatic matching in cone‐beam computed tomography (CBCT) images relative to the reduction of total tube current–exposure time product (mAs) for the X‐ray imaging (XI) system. The CBCT images were acquired with the Catphan 504 phantom various total mAs ratios such as 1.00, 0.83, 0.67, 0.57, and 0.50. For studying the automatic matching accuracy, the phantom images were acquired with a six‐dimensional shifting table. The image quality and correction of automatic matching were compared. With a decreasing total mAs ratio, the noise of the images increased and the low‐contrast resolution decreased, while the accuracy of the automatic matching did not change. Therefore, this study shows that a change of the total mAs while acquiring CBCT images has no effect on the automatic matching of Catphan 504 phantom in XI system. PACS number(s): 87.57.C‐, 87.57.Q‐ |
format | Online Article Text |
id | pubmed-5690535 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-56905352018-04-02 Accuracy of automatic matching of Catphan 504 phantom in cone‐beam computed tomography for tube current–exposure time product Won, Hui‐Su Chung, Jin‐Beom Choi, Byung‐Don Park, Jin‐Hong Hwang, Do‐Guwn J Appl Clin Med Phys Technical Notes The purpose of this study is to evaluate the accuracy of automatic matching in cone‐beam computed tomography (CBCT) images relative to the reduction of total tube current–exposure time product (mAs) for the X‐ray imaging (XI) system. The CBCT images were acquired with the Catphan 504 phantom various total mAs ratios such as 1.00, 0.83, 0.67, 0.57, and 0.50. For studying the automatic matching accuracy, the phantom images were acquired with a six‐dimensional shifting table. The image quality and correction of automatic matching were compared. With a decreasing total mAs ratio, the noise of the images increased and the low‐contrast resolution decreased, while the accuracy of the automatic matching did not change. Therefore, this study shows that a change of the total mAs while acquiring CBCT images has no effect on the automatic matching of Catphan 504 phantom in XI system. PACS number(s): 87.57.C‐, 87.57.Q‐ John Wiley and Sons Inc. 2016-11-08 /pmc/articles/PMC5690535/ /pubmed/27929513 http://dx.doi.org/10.1120/jacmp.v17i6.6402 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 | Technical Notes Won, Hui‐Su Chung, Jin‐Beom Choi, Byung‐Don Park, Jin‐Hong Hwang, Do‐Guwn Accuracy of automatic matching of Catphan 504 phantom in cone‐beam computed tomography for tube current–exposure time product |
title | Accuracy of automatic matching of Catphan 504 phantom in cone‐beam computed tomography for tube current–exposure time product |
title_full | Accuracy of automatic matching of Catphan 504 phantom in cone‐beam computed tomography for tube current–exposure time product |
title_fullStr | Accuracy of automatic matching of Catphan 504 phantom in cone‐beam computed tomography for tube current–exposure time product |
title_full_unstemmed | Accuracy of automatic matching of Catphan 504 phantom in cone‐beam computed tomography for tube current–exposure time product |
title_short | Accuracy of automatic matching of Catphan 504 phantom in cone‐beam computed tomography for tube current–exposure time product |
title_sort | accuracy of automatic matching of catphan 504 phantom in cone‐beam computed tomography for tube current–exposure time product |
topic | Technical Notes |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5690535/ https://www.ncbi.nlm.nih.gov/pubmed/27929513 http://dx.doi.org/10.1120/jacmp.v17i6.6402 |
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