Three-Dimensional Measurement of Aortic Annulus Dimensions Using Area or Circumference for Transcatheter Aortic Valve Replacement Valve Sizing: Does It.

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Three-Dimensional Measurement of Aortic Annulus Dimensions Using Area or Circumference for Transcatheter Aortic Valve Replacement Valve Sizing: Does It Make a Difference? Alexandros Papachristidis, MD, Michael Papitsas, MD, Damian Roper, MBChB, Yanzhong Wang, PhD, Rafal Dworakowski, MD, PhD, Jonathan Byrne, MBChB, PhD, FRCP, Olaf Wendler, MD, PhD, FRCS, Philip MacCarthy, BSc, MBChB(Hons), PhD, FRCP, Mark J. Monaghan, PhD, FRCP(Hon), FACC, FESC Journal of the American Society of Echocardiography Volume 30, Issue 9, Pages 871-878 (September 2017) DOI: 10.1016/j.echo.2017.05.014 Copyright © 2017 American Society of Echocardiography Terms and Conditions

Figure 1 Aortic annulus measurements in a 3D TEE data set. A1, Aortic annulus area; D1, maximum diameter; D3, minimum diameter. Journal of the American Society of Echocardiography 2017 30, 871-878DOI: (10.1016/j.echo.2017.05.014) Copyright © 2017 American Society of Echocardiography Terms and Conditions

Figure 2 Long-axis view of the AV showing significant eccentric calcification on noncoronary cusp. Journal of the American Society of Echocardiography 2017 30, 871-878DOI: (10.1016/j.echo.2017.05.014) Copyright © 2017 American Society of Echocardiography Terms and Conditions

Figure 3 Typical examples of circular and ellipsoid aortic annulus shapes. Despite the difference in shape, the annular circumference is identical in both cases, whereas the area is smaller in the ellipsoid shape. A1, Aortic annulus area 1; A2, aortic annulus area 2; D1, diameter 1; D2, diameter 2; Circ, circumference. Journal of the American Society of Echocardiography 2017 30, 871-878DOI: (10.1016/j.echo.2017.05.014) Copyright © 2017 American Society of Echocardiography Terms and Conditions

Journal of the American Society of Echocardiography 2017 30, 871-878DOI: (10.1016/j.echo.2017.05.014) Copyright © 2017 American Society of Echocardiography Terms and Conditions