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. 2023 May 9;10:1183689. doi: 10.3389/fvets.2023.1183689

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Copyright © 2023 Guglielmini, Valente, Romito, Mazzoldi, Baron Toaldo, Goncalves Sousa, Wolf, Beluque, Domenech, Patata, Porciello, Ferrari, Caivano, Contiero and Poser.

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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Receiver operating characteristic curve of two echocardiographic methods of left atrial measurement for the prediction of development of atrial fibrillation in a population of 89 dogs with dilated cardiomyopathy. (A) The area under the curve of the left atrial diameter (LA) is 0.816 ± 0.044 (95% confidence interval [CI] = 0.719–0.890) at the cut-off of >4.66 cm. (B) The area under the curve of the left atrial-to-aortic root diameter ratio (LA:Ao) is 0.637 ± 0.059 (95% CI = 0.528–0.736) at the cut-off of >1.73.