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Improved Imaging of the cervico-thoracie junction in computed tomography

Authors
Cho, Pyong KonLee, Young HenKim, You HyunChoi, Jong HakShin, Dong ChulChoi, Tae KyuKim, Jang SeobKim, Ki HyunKim, Sun Ung
Issue Date
29-2월-2008
Publisher
YONSEI UNIV COLL MEDICINE
Keywords
cervico-thoracic junction; computed tomography; artifacts; swimmers position
Citation
YONSEI MEDICAL JOURNAL, v.49, no.1, pp.84 - 89
Indexed
SCIE
SCOPUS
KCI
Journal Title
YONSEI MEDICAL JOURNAL
Volume
49
Number
1
Start Page
84
End Page
89
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/124048
DOI
10.3349/ymj.2008.49.1.84
ISSN
0513-5796
Abstract
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.
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College of Medicine > Department of Medical Science > 1. Journal Articles
College of Health Sciences > Department of Radiologic Science > 1. Journal Articles
College of Health Sciences > School of Health and Environmental Science > 1. Journal Articles
College of Science and Technology > Semiconductor Physics in Division of Display and Semiconductor Physics > 1. Journal Articles

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