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Open Access The 'Mill-Wheel' Murmur and Computed Tomography of Intracardiac Air Emboli

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The 'water-wheel' or 'mill-wheel' murmur is classically associated with large intracardiac air emboli and described as a "characteristic splashing auscultatory sound due to the presence of gas in the cardiac chambers." We used 64-slice computed tomography (slice thickness, 0.5 mm; revolution time, 400 msec) and 3D fly-through software imagery to capture previously unreported intracardiac air–blood interface dynamics associated with this murmur and ineffective right ventricular contraction in a porcine model.

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Keywords: CT, COMPUTED TOMOGRAPHY

Document Type: Case Report

Affiliations: 1: Cardiology Service, Brooke Army Medical Center, Fort Sam Houston, Texas 2: US Army Institute of Surgical Research, Veterinary Support Division, Fort Sam Houston, Texas

Publication date: May 1, 2009

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  • The Journal of the American Association for Laboratory Animal Science (JAALAS) serves as an official communication vehicle for the American Association for Laboratory Animal Science (AALAS). The journal includes a section of refereed articles and a section of AALAS association news. The mission of the refereed section of the journal is to disseminate high-quality, peer-reviewed information on animal biology, technology, facility operations, management, and compliance as relevant to the AALAS membership. JAALAS accepts research reports (data-based) or scholarly reports (literature-based), with the caveat that all articles, including solicited manuscripts, must include appropriate references and must undergo peer review.

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