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. 2014 Dec 5;16(1):93. doi: 10.1186/s12968-014-0093-x

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© Hartlage et al.; licensee BioMed Central Ltd. 2014

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Semi-quantitative echocardiographic (SQE) measurement of paravalvular leak (PVL) using circumferential extent of PVL in the parasternal short-axis by the Valve Academic Research Consortium II method. The green circle represents the circumference of the paravalvular leak. The purple circle represents the circumference of the transcatheter valve stent frame. The circumferential extent is the sum of the paravalvular leak jet circumference(s) divided by the valve circumference (mild <10%, moderate 10-30%, severe >30%).