| Histopathological correlates of the napkin-ring sign plaque in coronary CT angiography. | |
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MedLine Citation:
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PMID: 22771191 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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OBJECTIVE: The purpose of this study was to identify histologic characteristics of advanced coronary atherosclerotic plaques that are related with the detection of the napkin-ring sign (NRS) in coronary CT angiography (CCTA). METHODS: CCTA was performed in 7 human donor hearts. Histological slicing and stainings were performed in 1 mm increments of each major coronary artery. Histology was co-registered with the CT-data and classified according to the modified AHA classification. RESULTS: Advanced plaques (types IV-VI) were present in 139 (23%) of 611 cross sections. Of these 33 (24%) demonstrated an NRS in CCTA. NRS plaques were associated with greater non-core plaque area (median 10.2 vs. 6.4 mm(2), p < 0.01) and larger vessel area (median 17.1 vs. 13.0 mm(2), p < 0.01). The area of the necrotic/lipid core was larger in plaques with NRS (median 1.1 vs. 0.5 mm(2), p = 0.05). Angiogenesis tended to be more frequent in plaques with NRS (48% vs. 30%) whereas micro-calcifications tended to be more frequent in plaques without NRS (27% vs. 46%) (p = 0.06 and 0.07 respectively). In a multivariate analysis, necrotic/lipid core area (OR = 1.9), non-core plaque area (OR = 1.6), and total vessel area (OR = 0.9) independently predicted the appearance of the NRS in coronary CT angiography. CONCLUSION: Delineation of NRS in CCTA is independently linked to the size of the necrotic/lipid core, the size of the non-core plaque and to the vessel area as measured in histology of advanced coronary atherosclerotic plaques. |
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Authors:
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Harald Seifarth; Christopher L Schlett; Masataka Nakano; Fumiyuki Otsuka; Mihály Károlyi; Gary Liew; Pál Maurovich-Horvat; Hatem Alkadhi; Renu Virmani; Udo Hoffmann |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-6-21 |
Journal Detail:
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Title: Atherosclerosis Volume: - ISSN: 1879-1484 ISO Abbreviation: - Publication Date: 2012 Jun |
Date Detail:
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Created Date: 2012-7-9 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0242543 Medline TA: Atherosclerosis Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2012 Elsevier Ireland Ltd. All rights reserved. |
Affiliation:
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Cardiac MR PET CT Program, Massachusetts General Hospital and Harvard Medical School, 165 Cambridge Street, Boston, MA 02114, USA; Department of Clinical Radiology, University of Muenster, Germany. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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