Evaluation of tissue Doppler imaging for regional quantification of radial left ventricular wall motion in healthy horses.
Abstract: To compare the feasibility and repeatability of tissue Doppler imaging (TDI) for quantification of radial left ventricular (LV) velocity and deformation from different imaging planes and to correlate cardiac event timing data obtained by TDI to M-mode and pulsed-wave Doppler-derived time intervals in horses. Methods: 10 healthy adult horses. Methods: Repeated echocardiography was performed by 2 observers from right and left parasternal short-axis views at papillary muscle and chordal levels. The TDI measurements of systolic and diastolic velocity, strain rate, strain peak values, and timing were performed in 8 LV wall segments (LV free wall and interventricular septum from right parasternal views; left and right region of LV wall from left parasternal views). The inter- and intraobserver within- and between-day variability and measurement variability were assessed. The correlation between TDI-based measurements and M-mode and pulsed-wave Doppler-based time measurements was calculated. Results: TDI measurements of velocity, strain rate, and strain were feasible in each horse, although deformation could often not be measured in the LV free wall. Systolic and diastolic time intervals could be determined with low to moderate variability, whereas peak amplitude variability ranged from low to high. The TDI-based time measurements were significantly correlated to M-mode and pulsed-wave Doppler measurements. Conclusions: TDI measurements of radial LV velocity and deformation were feasible with low to moderate variability in 8 LV segments. These measurements can be used for evaluating LV function in further clinical studies.
Publication Date: 2012-12-29 PubMed ID: 23270346DOI: 10.2460/ajvr.74.1.53Google Scholar: Lookup
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- Comparative Study
- Evaluation Study
- Journal Article
- Research Support
- Non-U.S. Gov't
Summary
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The research paper presents a comparison of the reliability and repeatability of tissue Doppler imaging (TDI) in assessing left ventricular motion in horses, with a particular focus on the radial direction. The authors compared TDI data with those provided by M-mode and pulsed-wave Doppler measurements, finding significant correlations between the two sets of data.
Methodology
- The study was conducted on 10 healthy adult horses.
- Two observers performed repeated echocardiography from the right and left parasternal short-axis views at the papillary muscle and chordal levels.
- The TDI measurements focused on systolic and diastolic velocity, strain rate, strain peak values, and timing, and were performed in 8 sections of the left ventricle wall.
- The study assessed inter- and intraobserver variability, variability between days, and measurement variability.
- The researchers also calculated correlation between TDI-based measurements and M-mode and pulsed-wave Doppler-based time measurements.
Results
- The TDI measurements for velocity, strain rate, and strain were found to be feasible with low to moderate variability in 8 LV segments.
- The systolic and diastolic time intervals were determined to have low to moderate variability; however, the variability for peak amplitude ranged from low to high.
- The measurements often could not determine deformation in the LV free wall.
- The TDI-based time measurements correlated significantly with M-mode and pulsed-wave Doppler measurements.
Conclusions
- The feasibility of using TDI measurements in quantifying radial left ventricular velocity and deformation was confirmed, showing low to moderate variability in 8 LV segments.
- The results promise the potential use of TDI in further clinical studies for evaluating left ventricular function.
Cite This Article
APA
Decloedt A, Verheyen T, Sys S, De Clercq D, van Loon G.
(2012).
Evaluation of tissue Doppler imaging for regional quantification of radial left ventricular wall motion in healthy horses.
Am J Vet Res, 74(1), 53-61.
https://doi.org/10.2460/ajvr.74.1.53 Publication
Researcher Affiliations
- Department of Large Animal Internal Medicine, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium. annelies.decloedt@ugent.be
MeSH Terms
- Animals
- Echocardiography, Doppler / methods
- Echocardiography, Doppler / veterinary
- Female
- Horses / physiology
- Male
- Motion
- Myocardial Contraction
- Reproducibility of Results
- Ventricular Function, Left
Citations
This article has been cited 8 times.- Gehlen H, Fisch J, Merle R, Trachsel DS. Preliminary study on the effects of pergolide on left ventricular function in the horses with pituitary pars intermedia dysfunction. J Vet Sci 2021 Sep;22(5):e64.
- Decloedt A, Ven S, De Clercq D, Rademakers F, van Loon G. Assessment of left ventricular function in horses with aortic regurgitation by 2D speckle tracking. BMC Vet Res 2020 Mar 20;16(1):93.
- Koenig TR, Mitchell KJ, Schwarzwald CC. Echocardiographic Assessment of Left Ventricular Function in Healthy Horses and in Horses with Heart Disease Using Pulsed-Wave Tissue Doppler Imaging. J Vet Intern Med 2017 Mar;31(2):556-567.
- Flethøj M, Schwarzwald CC, Haugaard MM, Carstensen H, Kanters JK, Olsen LH, Buhl R. Left Ventricular Function After Prolonged Exercise in Equine Endurance Athletes. J Vet Intern Med 2016 Jul;30(4):1260-9.
- Puangsubsin P, Isawirodom A, Rungsri P, Satumay N, Laikul A, Cherdchutham W. Echocardiographic assessment of left ventricular function in mules under general anesthesia induced with a high-dose xylazine-based protocol. Vet World 2025 Jul;18(7):1936-1943.
- Schneider MJ, Piotrowski IL, Junge HK, van Steenkiste G, Vernemmen I, van Loon G, Schwarzwald CC. Application of Acoustic Cardiography in Assessment of Cardiac Function in Horses with Atrial Fibrillation Before and After Cardioversion. Animals (Basel) 2025 Jul 7;15(13).
- Piotrowski IL, Junge HK, Schwarzwald CC. Evaluation of the Audicor Acoustic Cardiography Device as a Diagnostic Tool in Horses with Mitral or Aortic Valve Insufficiency. Animals (Basel) 2024 Jan 21;14(2).
- Dufourni A, Buschmann E, Vernemmen I, Van Steenkiste G, van Loon G, Decloedt A. Effect of physiological and pharmacological stress on heart rate, blood pressure, and echocardiographic measurements in healthy Warmblood horses. J Vet Intern Med 2024 Jan-Feb;38(1):398-410.
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