Key result
Quantitative M-mode and two-dimensional echocardiography demonstrated high repeatability and close correlation with post mortem measurements, indicating it is a reliable technique in calves.
Why the study?
Does a standardised echocardiographic protocol provide reliable and repeatable cardiac measurements in healthy calves compared to post mortem analysis?
Observational (n=18)
Does a standardised echocardiographic protocol provide reliable and repeatable cardiac measurements in healthy calves compared to post mortem analysis?
Quantitative M-mode and two-dimensional echocardiography is a reliable and repeatable technique for assessing cardiac anatomy and function in calves.
May support cardiac assessment in calves; leaves open validation in disease and other species.
A standardised echocardiographic protocol was applied to 18 healthy calves for the estimation of 51 anatomical and functional cardiac variables. These variables were measured in a long axis and a short axis view of the heart, and both two-dimensional and cursor-directed time-motion (M-) modes were used. The repeatability of each of the measurements was estimated by comparing values obtained twice within 24 hours, and most of the 51 variables showed a high degree of repeatability. Statistical analysis revealed a close correlation between cardiac measurements taken post mortem and by in vivo echocardiography, and between the echocardiographic values obtained in different scanning planes of the heart or ultrasonic modes, indicating that quantitative echocardiography is a reliable technique in calves.
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Amory et al. (1991) conducted an observational in Healthy calves (n=18). Quantitative M-mode and two-dimensional echocardiography vs. Post mortem measurements was evaluated on Repeatability of measurements and correlation with post mortem measurements. Quantitative M-mode and two-dimensional echocardiography demonstrated high repeatability and close correlation with post mortem measurements, indicating it is a reliable technique in calves.
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