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Dual-Energy CT: New Horizon in Medical Imaging
Dual-energy CT has remained underutilized over the past decade probably due to a cumbersome workflow issue and current technical limitations. Clinical radiologists should be made aware of the potential clinical benefits of dual-energy CT over single-energy CT. To accomplish this aim, the basic princ...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Korean Society of Radiology
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5447632/ https://www.ncbi.nlm.nih.gov/pubmed/28670151 http://dx.doi.org/10.3348/kjr.2017.18.4.555 |
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author | Goo, Hyun Woo Goo, Jin Mo |
author_facet | Goo, Hyun Woo Goo, Jin Mo |
author_sort | Goo, Hyun Woo |
collection | PubMed |
description | Dual-energy CT has remained underutilized over the past decade probably due to a cumbersome workflow issue and current technical limitations. Clinical radiologists should be made aware of the potential clinical benefits of dual-energy CT over single-energy CT. To accomplish this aim, the basic principle, current acquisition methods with advantages and disadvantages, and various material-specific imaging methods as clinical applications of dual-energy CT should be addressed in detail. Current dual-energy CT acquisition methods include dual tubes with or without beam filtration, rapid voltage switching, dual-layer detector, split filter technique, and sequential scanning. Dual-energy material-specific imaging methods include virtual monoenergetic or monochromatic imaging, effective atomic number map, virtual non-contrast or unenhanced imaging, virtual non-calcium imaging, iodine map, inhaled xenon map, uric acid imaging, automatic bone removal, and lung vessels analysis. In this review, we focus on dual-energy CT imaging including related issues of radiation exposure to patients, scanning and post-processing options, and potential clinical benefits mainly to improve the understanding of clinical radiologists and thus, expand the clinical use of dual-energy CT; in addition, we briefly describe the current technical limitations of dual-energy CT and the current developments of photon-counting detector. |
format | Online Article Text |
id | pubmed-5447632 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | The Korean Society of Radiology |
record_format | MEDLINE/PubMed |
spelling | pubmed-54476322017-07-01 Dual-Energy CT: New Horizon in Medical Imaging Goo, Hyun Woo Goo, Jin Mo Korean J Radiol Experiment, Engineering, and Physics Dual-energy CT has remained underutilized over the past decade probably due to a cumbersome workflow issue and current technical limitations. Clinical radiologists should be made aware of the potential clinical benefits of dual-energy CT over single-energy CT. To accomplish this aim, the basic principle, current acquisition methods with advantages and disadvantages, and various material-specific imaging methods as clinical applications of dual-energy CT should be addressed in detail. Current dual-energy CT acquisition methods include dual tubes with or without beam filtration, rapid voltage switching, dual-layer detector, split filter technique, and sequential scanning. Dual-energy material-specific imaging methods include virtual monoenergetic or monochromatic imaging, effective atomic number map, virtual non-contrast or unenhanced imaging, virtual non-calcium imaging, iodine map, inhaled xenon map, uric acid imaging, automatic bone removal, and lung vessels analysis. In this review, we focus on dual-energy CT imaging including related issues of radiation exposure to patients, scanning and post-processing options, and potential clinical benefits mainly to improve the understanding of clinical radiologists and thus, expand the clinical use of dual-energy CT; in addition, we briefly describe the current technical limitations of dual-energy CT and the current developments of photon-counting detector. The Korean Society of Radiology 2017 2017-05-19 /pmc/articles/PMC5447632/ /pubmed/28670151 http://dx.doi.org/10.3348/kjr.2017.18.4.555 Text en Copyright © 2017 The Korean Society of Radiology http://creativecommons.org/licenses/by-nc/4.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Experiment, Engineering, and Physics Goo, Hyun Woo Goo, Jin Mo Dual-Energy CT: New Horizon in Medical Imaging |
title | Dual-Energy CT: New Horizon in Medical Imaging |
title_full | Dual-Energy CT: New Horizon in Medical Imaging |
title_fullStr | Dual-Energy CT: New Horizon in Medical Imaging |
title_full_unstemmed | Dual-Energy CT: New Horizon in Medical Imaging |
title_short | Dual-Energy CT: New Horizon in Medical Imaging |
title_sort | dual-energy ct: new horizon in medical imaging |
topic | Experiment, Engineering, and Physics |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5447632/ https://www.ncbi.nlm.nih.gov/pubmed/28670151 http://dx.doi.org/10.3348/kjr.2017.18.4.555 |
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