Comparison between echocardiographic and non-ECG-gated CT measurements in dogs

Laborda Vidal, Pati, Maddox, Tom, Navarro-Cubas, Xavi, Dukes McEwan, Jo ORCID: 0000-0002-0326-8251 and McConnell, Fraser (2015) Comparison between echocardiographic and non-ECG-gated CT measurements in dogs. Veterinary Record, 176 (13). 335-U60.

XML Word Processing Document (DOCX) xUoL 1Laborda-Vidal-P -REVISED-MANUSCRIPT2. Comparison-between-echocardiographic-and-non-ECG-gated-CT-measurements-in-dogs.docx - Author Accepted Manuscript Download (110kB)

Abstract

The aim of this study was to compare echocardiographic measurements with non-ECG-gated contrast-enhanced cardiac CT measurements in dogs. Fifty-seven dogs were included in the study. The following echocardiographic parameters were measured: M-mode interventricular septum in diastole and systole, left ventricular internal diameter in diastole and systole, left ventricular free wall in diastole and systole, 2D left atrial maximal diameter, 2D left atrium to aorta ratio in diastole, 2D aortic annulus in systole and 2D pulmonary annulus in diastole and systole. CT measurements were obtained from multiplanar reconstruction images, replicating the imaging planes used for 2D measurements on echocardiography. It was not possible to discriminate between systole and diastole. The results showed moderate Lin's concordance correlation coefficients between the left ventricular internal diameter in systole (0.77), the aortic annuli (0.84) and the pulmonary annuli in diastole (0.78) and systole (0.80). Low coefficients were obtained between the other parameters. Bland-Altman plots for the parameters with highest concordance correlation coefficients were calculated. They suggested equivalence between the measurements of the aortic annuli. Equivalence was not seen between the remaining echocardiographic and CT measurements. Therefore, non-ECG-gated CT is not a reliable way of quantitatively assessing cardiac size.

Item Type:	Article
Uncontrolled Keywords:	Heart, Animals, Dogs, Tomography, X-Ray Computed, Echocardiography, Organ Size, Reproducibility of Results, Female, Male
Divisions:	Faculty of Health and Life Sciences Faculty of Health and Life Sciences > Institute of Infection, Veterinary and Ecological Sciences
Depositing User:	Symplectic Admin
Date Deposited:	08 Feb 2024 13:15
Last Modified:	08 Feb 2024 13:16
DOI:	10.1136/vr.102724
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3178565