This 3D animation of the MV annulus (right) is reconstructed from a real-time 3D image of the MV (left). It demonstrates the anterior-posterior or interpeak distance, which is also measured in the 2D midesophageal long-axis view. Source: Valvular Heart Diseases, Clinical Manual and Review of Transesophageal Echocardiography, 2e Citation: Mathew JP, Swaminathan M, Ayoub CM. Clinical Manual and Review of Transesophageal Echocardiography, 2e; 2010 Available at: http://accessanesthesiology.mhmedical.com/DownloadImage.aspx?image=/data/books/math2/math2_c007f004.jpg&sec=40109877&BookID=417&ChapterSecID=40109066&imagename= Accessed: October 31, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved