Aortic Stenosis: Comparative Evaluation of 16–Detector Row CT and Echocardiography
作者： Hatem Alkadhi , Simon Wildermuth , Andre Plass , Dominique Bettex , Bernhard Baumert
DOI: 10.1148/RADIOL.2393050458
关键词:
摘要: Purpose: To prospectively evaluate whether planimetric measurements of aortic valve area (AVA) with 16–detector row computed tomography (CT) allow classification stenosis (AS). Materials and Methods: The study had institutional review board approval; patients gave informed consent. Twenty (11 men, nine women; mean age, 63 years) AS 20 (10 10 65 without underwent transthoracic echocardiography (TTE), transesophageal (TEE), retrospectively electrocardiographically gated CT. CT data sets were reconstructed in 5% steps R-R interval; analysis was performed four-dimensional software. Maximum AVA systole planimetrically measured (AVACT) compared TEE (AVATEE), calculated the continuity equation TTE (AVATTE), transvalvular pressure gradients determined Bernoulli TTE. Correlations among AVACT, AVATTE, A...
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