Journal
SCANDINAVIAN CARDIOVASCULAR JOURNAL
Volume 43, Issue 5, Pages 318-323Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/14017430902737940
Keywords
Echocardiography; infective endocarditis; 3-dimensional echocardiography
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Funding
- National Cheng Kung University Hospital, Tainan, Taiwan [NCKUH-96-49]
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Objectives. To compare transthoracic 2-dimentional echocardiography (2DE) and real-time three-dimensional echocardiography (RT-3DE) evaluation of clinically suspected infective endocarditis (IE) and to determine the feasibility of RT-3DE in vegetation detection. Designs. There were 46 patients (mean age 61 +/- 17 years, 54% male) enrolled. We acquired 2DE and RT-3DE with full volume images. RT-3DE images were analyzed by 3D QLAB software. Parameters suggestive of vegetation for RT-3DE assessment included mobile nodules, focal thickness, and uneven surface. The diagnosis of IE was made according to the Duke criteria. Results. The sensitivity and specificity were 91.6% and 88.2% for 2DE, and 91.6% and 100% for RT-3DE. Among three parameters of RT-3DE, presence of mobile nodule (83.3% vs. 0%, p 0.001) were significantly higher in IE patients but not focal thickness (75% vs. 65%, p = 0.723), or uneven surface (33% vs. 10%, p = 0.064). Conclusion. The sensitivity of RT-3DE and 2DE was similar for endocarditis diagnosis, but the specificity of RT-3DE was higher. Mobile nodules viewed by RT-3DE might be a useful finding for vegetation detection.
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