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Reliability of echocardiographic speckle-tracking derived bi-atrial strain assessment under different hemodynamic conditions

The aim of this study was to assess intra- and inter-observer variability of left (LA) and right atrial (RA) strain indices obtained by two-dimensional speckle-tracking echocardiography (2D-STE) in a healthy group of individuals at low-altitude and after rapid ascent to high-altitude in order to pro...

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Autores principales: Sareban, Mahdi, Perz, Tabea, Macholz, Franziska, Reich, Bernhard, Schmidt, Peter, Fried, Sebastian, Mairbäurl, Heimo, Berger, Marc M., Niebauer, Josef
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Netherlands 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5682868/
https://www.ncbi.nlm.nih.gov/pubmed/28500377
http://dx.doi.org/10.1007/s10554-017-1154-7
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author Sareban, Mahdi
Perz, Tabea
Macholz, Franziska
Reich, Bernhard
Schmidt, Peter
Fried, Sebastian
Mairbäurl, Heimo
Berger, Marc M.
Niebauer, Josef
author_facet Sareban, Mahdi
Perz, Tabea
Macholz, Franziska
Reich, Bernhard
Schmidt, Peter
Fried, Sebastian
Mairbäurl, Heimo
Berger, Marc M.
Niebauer, Josef
author_sort Sareban, Mahdi
collection PubMed
description The aim of this study was to assess intra- and inter-observer variability of left (LA) and right atrial (RA) strain indices obtained by two-dimensional speckle-tracking echocardiography (2D-STE) in a healthy group of individuals at low-altitude and after rapid ascent to high-altitude in order to provoke altered systemic and pulmonary hemodynamics otherwise seen in various cardiac diseases. Twenty healthy subjects underwent transthoracic echocardiography during a baseline examination at low-altitude (424 m) as well as 7, 20 and 44 h after arrival at high-altitude (4559 m). Atrial strain indices (i.e. reservoir, conduit and contractile strain) were determined off-line by two independent observers. Intra- and inter-observer reproducibility of variables was assessed by intra-class correlation coefficients (ICCs), coefficients of variation and Bland Altman plots. Heart rate, systemic blood pressure and pulmonary artery pressure increased significantly from low-altitude to the first examination at high-altitude. Intra-observer ICCs were ≥0.90 except for RA conduit strain with an ICC of 0.86. The mean intra-observer differences were small and limits of agreement of relative differences were narrow for all atrial strain parameters (<3 and <16%, respectively). Inter-observer ICCs (0.80–0.90), mean biases and limits of agreement (<4 and <20%, respectively) were greater than intra-observer results for all parameters. Intra- and inter-obserer ICCs for all atrial strain variables did not differ between low- and high-altitude. 2D-STE-derived bi-atrial strain indices have excellent intra- and moderate inter-observer reproducibility with no effect of high-altitude-induced hemodynamic changes on reliability results.
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spelling pubmed-56828682017-11-22 Reliability of echocardiographic speckle-tracking derived bi-atrial strain assessment under different hemodynamic conditions Sareban, Mahdi Perz, Tabea Macholz, Franziska Reich, Bernhard Schmidt, Peter Fried, Sebastian Mairbäurl, Heimo Berger, Marc M. Niebauer, Josef Int J Cardiovasc Imaging Original Paper The aim of this study was to assess intra- and inter-observer variability of left (LA) and right atrial (RA) strain indices obtained by two-dimensional speckle-tracking echocardiography (2D-STE) in a healthy group of individuals at low-altitude and after rapid ascent to high-altitude in order to provoke altered systemic and pulmonary hemodynamics otherwise seen in various cardiac diseases. Twenty healthy subjects underwent transthoracic echocardiography during a baseline examination at low-altitude (424 m) as well as 7, 20 and 44 h after arrival at high-altitude (4559 m). Atrial strain indices (i.e. reservoir, conduit and contractile strain) were determined off-line by two independent observers. Intra- and inter-observer reproducibility of variables was assessed by intra-class correlation coefficients (ICCs), coefficients of variation and Bland Altman plots. Heart rate, systemic blood pressure and pulmonary artery pressure increased significantly from low-altitude to the first examination at high-altitude. Intra-observer ICCs were ≥0.90 except for RA conduit strain with an ICC of 0.86. The mean intra-observer differences were small and limits of agreement of relative differences were narrow for all atrial strain parameters (<3 and <16%, respectively). Inter-observer ICCs (0.80–0.90), mean biases and limits of agreement (<4 and <20%, respectively) were greater than intra-observer results for all parameters. Intra- and inter-obserer ICCs for all atrial strain variables did not differ between low- and high-altitude. 2D-STE-derived bi-atrial strain indices have excellent intra- and moderate inter-observer reproducibility with no effect of high-altitude-induced hemodynamic changes on reliability results. Springer Netherlands 2017-05-12 2017 /pmc/articles/PMC5682868/ /pubmed/28500377 http://dx.doi.org/10.1007/s10554-017-1154-7 Text en © The Author(s) 2017 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Original Paper
Sareban, Mahdi
Perz, Tabea
Macholz, Franziska
Reich, Bernhard
Schmidt, Peter
Fried, Sebastian
Mairbäurl, Heimo
Berger, Marc M.
Niebauer, Josef
Reliability of echocardiographic speckle-tracking derived bi-atrial strain assessment under different hemodynamic conditions
title Reliability of echocardiographic speckle-tracking derived bi-atrial strain assessment under different hemodynamic conditions
title_full Reliability of echocardiographic speckle-tracking derived bi-atrial strain assessment under different hemodynamic conditions
title_fullStr Reliability of echocardiographic speckle-tracking derived bi-atrial strain assessment under different hemodynamic conditions
title_full_unstemmed Reliability of echocardiographic speckle-tracking derived bi-atrial strain assessment under different hemodynamic conditions
title_short Reliability of echocardiographic speckle-tracking derived bi-atrial strain assessment under different hemodynamic conditions
title_sort reliability of echocardiographic speckle-tracking derived bi-atrial strain assessment under different hemodynamic conditions
topic Original Paper
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5682868/
https://www.ncbi.nlm.nih.gov/pubmed/28500377
http://dx.doi.org/10.1007/s10554-017-1154-7
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