| Partial ring artifact on cardiac CT: image presentation and clinical implication. | |
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MedLine Citation:
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PMID: 21503707 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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In computed tomography (CT), the term "artifact" is applied to any systematic discrepancy between the CT numbers in the reconstructed image and the true attenuation coefficients of the object. A partial ring artifact in cardiac CT has a unique pattern and has not been previously reported in real clinical practice. In this report, we will demonstrate the images and animations of a cardiac CT which is affected by a partial ring artifact due to a broken detector module. The different characteristics of ring artifacts on routine and cardiac CT, and the implications for clinical interpretation will also be described. In summary, when a partial ring artifact is noted incidentally on cardiac CT, we suggest interpreting the images by reviewing reconstructed images from different RR-intervals to avoid unnecessary repeated scans and additional radiation exposure. |
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Authors:
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Hsin-Yu Tsai; Min-Chi Chen; I-Chen Tsai; Clayton Chi-Chang Chen |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-4-19 |
Journal Detail:
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Title: The international journal of cardiovascular imaging Volume: - ISSN: 1875-8312 ISO Abbreviation: - Publication Date: 2011 Apr |
Date Detail:
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Created Date: 2011-4-19 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 100969716 Medline TA: Int J Cardiovasc Imaging Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Department of Radiology, Taichung Veterans General Hospital, No. 160, Sec. 3, Taichung Harbor Road, Taichung, 407, Taiwan, hsinyu0321@gmail.com. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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