Article ; Online: Two-dimensional echocardiographic measures of left ventricular dimensions agree with M-mode measurements in dogs.
2020 Volume 33, Page(s) 69–75
Abstract: Introduction: Clinicians measure left ventricular dimensions in dogs from both M-mode and two ... dimensions from archived M-mode and two-dimensional images obtained from the right parasternal short-axis ... with two-dimensional measurements being progressively larger than M-mode measurements as ventricular size ...
Abstract | Introduction: Clinicians measure left ventricular dimensions in dogs from both M-mode and two-dimensional images. Little information currently exists as to whether these two methods provide measurements similar enough to be interchangeable. Animals: The animals included in this study are 206 client-owned dogs: 68 healthy, 105 with myxomatous mitral valve disease, 33 with other cardiac or extracardiac disease. Materials and methods: Investigators measured left ventricular diastolic and systolic dimensions from archived M-mode and two-dimensional images obtained from the right parasternal short-axis view. Agreement between the pairs of measurements was examined using limits of agreement (Bland-Altman) plots. Results: Left ventricular diastolic dimensions showed no fixed or proportional bias but did show heteroscedasticity. Ninety-five percent limits of agreement for normalized differences approximated ±10%; 95% of the absolute differences for any pair of measurements were <3.9 mm regardless of bodyweight and <2.7 mm for dogs <15 kg. Left ventricular systolic dimensions showed slight proportional bias, with two-dimensional measurements being progressively larger than M-mode measurements as ventricular size increased. Ninety-five percent limits of agreement for normalized differences approximated ±20%; 95% of the absolute differences for any pair of measurements were <4.6 mm regardless of bodyweight and <3.5 mm for dogs <15 kg. Mitral valve disease did not appreciably affect these findings. Conclusions: Left ventricular internal dimensions in dogs with and without cardiac disease measured from two-dimensional right parasternal short-axis images are interchangeable with those measured from M-mode images using the same view. |
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MeSH term(s) | Animals ; Dog Diseases ; Dogs ; Echocardiography/veterinary ; Heart Diseases/diagnostic imaging ; Heart Diseases/veterinary ; Heart Valve Diseases/veterinary ; Heart Ventricles/diagnostic imaging ; Mitral Valve ; Retrospective Studies |
Language | English |
Publishing date | 2020-12-24 |
Publishing country | Netherlands |
Document type | Journal Article |
ZDB-ID | 2198278-8 |
ISSN | 1875-0834 ; 1760-2734 |
ISSN (online) | 1875-0834 |
ISSN | 1760-2734 |
DOI | 10.1016/j.jvc.2020.12.001 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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