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. 2019 Oct 10;6:149. doi: 10.3389/fcvm.2019.00149

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Copyright © 2019 Al Saikhan, Park and Hughes.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Three-dimensional echocardiographic (3DE) strain derived systolic dyssynchrony index (SDI) and impaired quality 3DE images. (A) SDI derived from principle tangential strain. (B) An example of a good and sub-optimal 3DE image quality obtained from the same participant in study 1. (C) An example of a 3DE with an optimal quality reference (no neoprene), mild (2 mm neoprene), moderate (3 mm neoprene), and severe (4 mm neoprene) impairment of 3DE image quality obtained from the same participant in study 2.