Longitudinal strain and strain rate by two-dimensional speckle tracking in non-sedated healthy cats

Two dimensional speckle tracking (2D-ST) is a relatively new tool that has been used in veterinary medicine to quantify myocardial function. However, there is little information about the use of this tool in healthy cats. Thus, the aim of this study was to evaluate left ventricular longitudinal stra...

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Bibliographic Details
Published in:Research in veterinary science 2013-12, Vol.95 (3), p.1175-1180
Main Authors: Silva, A.C., Muzzi, R.A.L., Oberlender, G., Nogueira, R.B., Muzzi, L.A.L., Reis, G.F.M., Mantovani, M.M.
Format: Article
Language:English
Subjects:
Animals
Cardiology
Cardiomyopathy
Cats - physiology
Coronary vessels
Echocardiography
Echocardiography - methods
Echocardiography - veterinary
Felines
Female
Flow velocity
Heart attacks
Heart Ventricles - diagnostic imaging
Male
Myocardial function
Pulmonary arteries
Software
Standard deviation
Studies
Ultrasonic imaging
Variables
Ventricular Function, Left - physiology
Veterinary medicine
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Summary:Two dimensional speckle tracking (2D-ST) is a relatively new tool that has been used in veterinary medicine to quantify myocardial function. However, there is little information about the use of this tool in healthy cats. Thus, the aim of this study was to evaluate left ventricular longitudinal strain and strain rate in non-sedated healthy cats, as well as longitudinal velocity and displacement, by means of 2D-ST echocardiography. Thirty non-sedated healthy cats were examined and 2D images were obtained for 2D-ST analyzes. The global mean strain and strain rate was −15.65±5.46% and −1.80±0.59 s−1, respectively. Velocity and displacement were 1.41±0.87cm/s and 1.27±0.80mm, respectively. Thus, 2D-ST demonstrated to be feasible for measuring left ventricular longitudinal strain, strain rate, velocity and displacement in cats and preliminary reference values for non-sedated healthy cats can be established from the results of this study.
ISSN:0034-5288
1532-2661
DOI:10.1016/j.rvsc.2013.07.020