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. 2016 Feb 19;30(2):543–552. doi: 10.1111/jvim.13911

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Copyright © 2016 The Authors. Journal of Veterinary Internal Medicine published by Wiley Periodicals, Inc. on behalf of the American College of Veterinary Internal Medicine.

This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.

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Scatter plots illustrating significant (all P < .0001) correlations (r) between peak tricuspid regurgitation systolic pressure gradient (TRPG) and the 4 indirect echocardiographic indices of pulmonary hypertension: right pulmonary artery distensibility (RPAD) index (upper left), acceleration time to peak pulmonary artery flow (AT; upper right), acceleration time to peak pulmonary artery flow to ejection time of pulmonary artery flow ratio (AT:ET; lower left), and main pulmonary artery to aorta internal diameter ratio (MPA:Ao; lower right). The solid line within each scatter plot represents the line of best fit.