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Improved Imaging of the Cervico-Thoracic Junction in Computed Tomography
PURPOSE: To reduce beam hardening artifacts caused by the shoulder joint, we explored new and unique methods to improve the quality of images, such as varying the injection site and changing the position of patients (swimmers position). MATERIALS AND METHODS: Fifth-four patients underwent neck CT ex...
Autores principales: | , , , , , , , , |
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Formato: | Texto |
Lenguaje: | English |
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Yonsei University College of Medicine
2008
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2615274/ https://www.ncbi.nlm.nih.gov/pubmed/18306474 http://dx.doi.org/10.3349/ymj.2008.49.1.84 |
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author | Cho, Pyong Kon Lee, Young Hen Kim, You Hyun Choi, Jong Hak Shin, Dong Chul Choi, Tae Kyu Kim, Jang Seob Kim, Ki Hyun Kim, Sun Ung |
author_facet | Cho, Pyong Kon Lee, Young Hen Kim, You Hyun Choi, Jong Hak Shin, Dong Chul Choi, Tae Kyu Kim, Jang Seob Kim, Ki Hyun Kim, Sun Ung |
author_sort | Cho, Pyong Kon |
collection | PubMed |
description | PURPOSE: To reduce beam hardening artifacts caused by the shoulder joint, we explored new and unique methods to improve the quality of images, such as varying the injection site and changing the position of patients (swimmers position). MATERIALS AND METHODS: Fifth-four patients underwent neck CT examinations performed in routine and swimmers position and with a 64-slice MDCT scanner in spiral scanning. To examine the difference due to the injection sites of contrast material, subjects were divided into right- and left-side groups. For the evaluation of images, we carried out a subjective and objective assessment based on radiologists' ratings and noise measurement. RESULTS: Images of the lower neck in the swimmers position exhibited less hardening and streak artifacts. The subjective and objective evaluations showed that the swimmers position received higher rating by radiologists and had lower noise level than that of routine position. The swimmers position was the most effective for the diagnosis of the cervico-thoracic junction area. As for the injection site, we obtained better images by an injection of contrast material in the right arm than in the left. CONCLUSION: CT examination of the lower neck in the swimmers position may improve the quality of image and the effectiveness of diagnosis. The injection of a contrast material to the right side rather than the left side reduced foreign body artifacts. |
format | Text |
id | pubmed-2615274 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2008 |
publisher | Yonsei University College of Medicine |
record_format | MEDLINE/PubMed |
spelling | pubmed-26152742009-02-02 Improved Imaging of the Cervico-Thoracic Junction in Computed Tomography Cho, Pyong Kon Lee, Young Hen Kim, You Hyun Choi, Jong Hak Shin, Dong Chul Choi, Tae Kyu Kim, Jang Seob Kim, Ki Hyun Kim, Sun Ung Yonsei Med J Original Article PURPOSE: To reduce beam hardening artifacts caused by the shoulder joint, we explored new and unique methods to improve the quality of images, such as varying the injection site and changing the position of patients (swimmers position). MATERIALS AND METHODS: Fifth-four patients underwent neck CT examinations performed in routine and swimmers position and with a 64-slice MDCT scanner in spiral scanning. To examine the difference due to the injection sites of contrast material, subjects were divided into right- and left-side groups. For the evaluation of images, we carried out a subjective and objective assessment based on radiologists' ratings and noise measurement. RESULTS: Images of the lower neck in the swimmers position exhibited less hardening and streak artifacts. The subjective and objective evaluations showed that the swimmers position received higher rating by radiologists and had lower noise level than that of routine position. The swimmers position was the most effective for the diagnosis of the cervico-thoracic junction area. As for the injection site, we obtained better images by an injection of contrast material in the right arm than in the left. CONCLUSION: CT examination of the lower neck in the swimmers position may improve the quality of image and the effectiveness of diagnosis. The injection of a contrast material to the right side rather than the left side reduced foreign body artifacts. Yonsei University College of Medicine 2008-02-29 2008-02-20 /pmc/articles/PMC2615274/ /pubmed/18306474 http://dx.doi.org/10.3349/ymj.2008.49.1.84 Text en Copyright © 2008 The Yonsei University College of Medicine 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 noncommercial use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Article Cho, Pyong Kon Lee, Young Hen Kim, You Hyun Choi, Jong Hak Shin, Dong Chul Choi, Tae Kyu Kim, Jang Seob Kim, Ki Hyun Kim, Sun Ung Improved Imaging of the Cervico-Thoracic Junction in Computed Tomography |
title | Improved Imaging of the Cervico-Thoracic Junction in Computed Tomography |
title_full | Improved Imaging of the Cervico-Thoracic Junction in Computed Tomography |
title_fullStr | Improved Imaging of the Cervico-Thoracic Junction in Computed Tomography |
title_full_unstemmed | Improved Imaging of the Cervico-Thoracic Junction in Computed Tomography |
title_short | Improved Imaging of the Cervico-Thoracic Junction in Computed Tomography |
title_sort | improved imaging of the cervico-thoracic junction in computed tomography |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2615274/ https://www.ncbi.nlm.nih.gov/pubmed/18306474 http://dx.doi.org/10.3349/ymj.2008.49.1.84 |
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