| Comparison of determinations of left atrial volume by the biplane area-length and Simpson's methods using 64-slice computed tomography. | |
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MedLine Citation:
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PMID: 19304131 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
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OBJECTIVES: There is increasing evidence that left atrial (LA) size is an important predictor of adverse cardiovascular outcomes such as atrial fibrillation, stroke, and congestive heart failure. The aim of this study was to determine whether there is a difference in results of quantification of LA volume by the area-length and Simpson's methods using multislice computed tomography (MSCT). METHODS AND RESULTS: The study population consisted of 51 patients with sinus rhythm (sinus group) and 20 patients with atrial fibrillation (af group) clinically indicated for MSCT angiography for evaluation of coronary arteries. Maximum LA volume, obtained at end-systole from the phase immediately preceding mitral valve opening, was measured using the area-length and Simpson's methods. In the sinus group, the mean LA volumes, indexed to body surface area, were 48.4+/-17.9 ml/m(2) with the area-length method and 48.3+/-17.0 ml/m(2) with the Simpson's method. In the af group, the mean indexed LA volumes with the area-length method and the Simposon's method were 91.5+/-47.5 ml/m(2) and 90.3+/-45.9 ml/m(2), respectively. LA volumes calculated by the area-length method exhibited a strong linear relationship and agreement with those calculated using Simpson's method in both the groups (sinus group: r=0.99, P<0.0001, af group: r=0.99, P<0.0001). CONCLUSIONS: The area-length method is a simple and reproducible means of assessment of LA volume. Standardization of LA volume assessment using MSCT is important for serial follow-up and meaningful communication of results of testing among institutions and physicians. |
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Authors:
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Yasuhiro Takagi; Shoichi Ehara; Takuhiro Okuyama; Nobuyuki Shirai; Hajime Yamashita; Kenichi Sugioka; Hitoe Kitamura; Keiji Ujino; Takeshi Hozumi; Minoru Yoshiyama |
Publication Detail:
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Type: Journal Article Date: 2009-01-24 |
Journal Detail:
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Title: Journal of cardiology Volume: 53 ISSN: 1876-4738 ISO Abbreviation: J Cardiol Publication Date: 2009 Apr |
Date Detail:
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Created Date: 2009-03-23 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8804703 Medline TA: J Cardiol Country: Japan |
Other Details:
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Languages: eng Pagination: 257-64 Citation Subset: IM |
Affiliation:
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Department of Internal Medicine, Osaka City University Graduate School of Medicine, 1-4-3 Asahi-machi, Abeno-ku, Osaka 545-8585, Japan. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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