Repeatability, reproducibility, and reference intervals for indices of right atrial longitudinal strain derived from speckle-tracking echocardiography in healthy dogs
| Autor: | Tomoya Morita, Tatsuyuki Osuga, Kensuke Nakamura, Mitsuyoshi Takiguchi |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
endocrine system
Reproducibility animal structures General Veterinary Longitudinal strain Systole business.industry Heart Ventricles Reproducibility of Results Speckle tracking echocardiography General Medicine Repeatability Right atrial Reference intervals Dogs Echocardiography Animals Medicine Heart Atria business Nuclear medicine |
| Zdroj: | American Journal of Veterinary Research. 82:274-279 |
| ISSN: | 0002-9645 |
| DOI: | 10.2460/ajvr.82.4.274 |
| Popis: | OBJECTIVE To determine repeatability, reproducibility, and reference intervals of indices of right atrial longitudinal strain (RALS) derived from speckle-tracking echocardiography (STE) in dogs without heart disease. ANIMALS 110 client-owned dogs and 10 laboratory Beagles. PROCEDURES To determine intraobserver within-day (repeatability) and interobserver (reproducibility) coefficients of variation, RALS during ventricular systole (εS), ventricular early diastole (εE), and atrial systole (εA), as derived with STE, were obtained by 2 investigators for 5 randomly selected client-owned dogs and analyzed by linear regression. Reference intervals were estimated from the results of all dogs. Correlations between RALS indices (εS, εE, and εA) and sex, age, body weight, heart rate, and blood pressure were determined. RESULTS RALS derived from STE showed good intraobserver within-day repeatability and interobserver reproducibility, with coefficients of variation of < 20%. Both εS and εE were significantly negatively correlated with age, but εA was not correlated with age. Indices were not correlated with sex, body weight, or blood pressure. CONCLUSIONS AND CLINICAL RELEVANCE RALS indices derived from STE were repeatable and reproducible and were affected by the age of dogs without heart disease. Age should be considered in the interpretation of RALS indices in clinical settings. Further studies are needed to apply RALS indices for assessing dogs with heart disease. |
| Databáze: | OpenAIRE |
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