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. 2017 Feb 1;36(2):193–209. doi: 10.1177/0278364917691113

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© The Author(s) 2017

This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (http://www.creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access page (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Fig. 6. — A pre-operative two-dimensional transoesophageal echocardiogram (TEE) of the aortic heart valve (AHV) annular plane. The centre location of the aortic heart valve annulus is manually segmented for multiple cardiac cycles. The human evaluated annulus centre positions are used for fitting a motion model. The blue line demonstrates the manually segmented annulus position during the cardiac cycle. The corresponding red line describes the position of the fitted model. Further, the velocities and accelerations of the AHV models are provided.