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pubmed-article:8849833pubmed:issue9lld:pubmed
pubmed-article:8849833pubmed:dateCreated1996-12-20lld:pubmed
pubmed-article:8849833pubmed:abstractTextSpontaneous echo contrast (SEC) is an echogenic, swirling pattern of blood flow which may be observed by transesophageal echocardiography (TEE) in the left atrium in low flow states, such as atrial fibrillation (AF). The presence of SEC has been proposed as a marker of increased thromboembolic risk. Evaluation of the severity of SEC might be useful in stratification of thromboembolic risk. The aim of this study was to validate a semiquantitative method of grading SEC against quantitative videodensitometric analysis. TEE studies were performed in 50 patients with AF. The severity of left atrial SEC was graded by three independent observers and by videodensitometry. There was a strong, positive correlation between the semiquantitative grades of SEC and quantitative videodensitometric scores (r = 0.85, P < 0.0001). Inter- and intraobserver correlations in the grading of SEC were very high (observer 1 vs. 2: r = 0.98, P = 0.0001; observer 1 vs. 3: r = 0.93, P = 0.0001; observer 1 vs. 1: r = 0.97, P = 0.0001). Semiquantitative grading of SEC can be performed rapidly and reliably by experienced observers. These results support the use of semiquantitative grading in studies of the pathogenesis and prognostic implications of SEC.lld:pubmed
pubmed-article:8849833pubmed:languageenglld:pubmed
pubmed-article:8849833pubmed:journalhttp://linkedlifedata.com/r...lld:pubmed
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pubmed-article:8849833pubmed:statusMEDLINElld:pubmed
pubmed-article:8849833pubmed:issn0301-5629lld:pubmed
pubmed-article:8849833pubmed:authorpubmed-author:JacobiPPlld:pubmed
pubmed-article:8849833pubmed:authorpubmed-author:FeneleyM PMPlld:pubmed
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pubmed-article:8849833pubmed:volume21lld:pubmed
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pubmed-article:8849833pubmed:pagination1191-8lld:pubmed
pubmed-article:8849833pubmed:dateRevised2007-11-15lld:pubmed
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pubmed-article:8849833pubmed:year1995lld:pubmed
pubmed-article:8849833pubmed:articleTitleQuantification of blood echogenicity: evaluation of a semiquantitative method of grading spontaneous echo contrast.lld:pubmed
pubmed-article:8849833pubmed:affiliationCardiology Department, St. Vincents Hospital, Sydney, Australia.lld:pubmed
pubmed-article:8849833pubmed:publicationTypeJournal Articlelld:pubmed
pubmed-article:8849833pubmed:publicationTypeResearch Support, Non-U.S. Gov'tlld:pubmed