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  • Title: Longitudinal strain and strain rate by two-dimensional speckle tracking in non-sedated healthy cats.
    Author: Silva AC, Muzzi RA, Oberlender G, Nogueira RB, Muzzi LA, Reis GF, Mantovani MM.
    Journal: Res Vet Sci; 2013 Dec; 95(3):1175-80. PubMed ID: 23937993.
    Abstract:
    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 ± 0.87 cm/s and 1.27 ± 0.80 mm, 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.
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