| Comparison between the image quality of multisegment and halfscan reconstructions of non-invasive CT coronary angiography. | |
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MedLine Citation:
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PMID: 19505967 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The purpose of this study was to compare the image quality of multisegment and halfscan reconstructions of multislice computed tomography (MSCT) coronary angiography. 126 patients with suspected coronary artery disease and uninfluenced heart rates were examined by 16-slice CT before they underwent invasive coronary angiography. Multisegment and halfscan reconstructions were performed in all patients, and subjective image quality, overall vessel length, vessel length free of motion artefacts and contrast-to-noise ratios (CNRs) were compared for both techniques. The diagnostic accuracy of both approaches was compared with the results of invasive coronary angiography. Overall image quality scores of multisegment reconstruction were superior to those of halfscan reconstruction (13.3+/-2.1 vs 11.9+/-2.9; p<0.001). Multisegment reconstruction depicted significantly longer overall coronary vessel lengths (p<0.001) and larger vessel proportions free of motion artefacts in three of the four main coronary arteries. CNRs in the left main, left anterior descending and left circumflex coronary arteries were significantly higher when multisegment reconstruction was used (p<0.001). Overall accuracy was higher for multisegment reconstruction compared with halfscan reconstruction (87% vs 62%). In conclusion, multisegment reconstruction significantly improves image quality and diagnostic accuracy of MSCT coronary angiography compared with standard halfscan reconstruction, resulting in vessel lengths depicted free of motion comparable to those of CT performed in patients given beta-blockers to lower heart rates. |
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Authors:
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D Schnapauff; F Teige; B Hamm; M Dewey |
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Publication Detail:
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Type: Comparative Study; Journal Article; Review Date: 2009-06-08 |
Journal Detail:
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Title: The British journal of radiology Volume: 82 ISSN: 1748-880X ISO Abbreviation: Br J Radiol Publication Date: 2009 Dec |
Date Detail:
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Created Date: 2009-11-25 Completed Date: 2010-01-25 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0373125 Medline TA: Br J Radiol Country: England |
Other Details:
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Languages: eng Pagination: 969-75 Citation Subset: AIM; IM |
Affiliation:
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Department of Radiology, Charit?? - Universit??tsmedizin Berlin, Freie Universit??t and Humboldt-Universit??t zu Berlin, Germany. dirk.schnapauff@charite.de |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Aged, 80 and over Artifacts Contrast Media Coronary Angiography / methods Coronary Disease / pathology, physiopathology, radiography* Female Heart Rate / physiology Humans Male Middle Aged Motion Radiographic Image Interpretation, Computer-Assisted / methods* Tomography, X-Ray Computed / methods |
| Chemical | |
Reg. No./Substance:
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0/Contrast Media |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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