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image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Echocardiographyarrow_drop_down
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
Echocardiography
Article . 2018 . Peer-reviewed
License: Wiley Online Library User Agreement
Data sources: Crossref
Echocardiography
Article . 2019
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Variability of right ventricular global and segmental longitudinal strain measurements

Authors: Oana Mirea; Mihaela Berceanu; Ionuț Donoiu; Constantin Militaru; Adrian Săftoiu; Octavian Istrătoaie;

Variability of right ventricular global and segmental longitudinal strain measurements

Abstract

ObjectivesWe evaluated intra‐observer, test–retest, and inter‐observer reproducibility of right ventricular (RV) longitudinal strain (LS) measurements derived from two‐dimensional speckle tracking echocardiography.BackgroundThe assessment of RV deformation has demonstrated to hold valuable prognostic and diagnostic data in clinical practice. Data about the reproducibility of the measurements, however, are missing.MethodsIn 200 subjects, apical modified four‐chamber view focused on the right ventricle (RV) was obtained. In 150 subjects (75%), a second set of images was acquired for test–retest analysis. Global RV LS (RVGLS‐4C), free wall strain (RVFW‐4C), and segmental maximum peak strain (base, mid, and apex) were calculated (EchoPac vBT13, GE Vingmed Ultrasound, Horten, Norway). Additionally, the reliability and feasibility of RV free wall strain derived from single wall tracking (RVFW‐SWT) were tested. The absolute difference between repeated measurements and inter‐class correlation coefficients (ICC) for consistency was calculated.ResultsRVGLS‐4C and RVFW‐4C measurement could be obtained in all subjects. RVGLS‐4C demonstrated lower intra‐observer, test–retest, and inter‐observer absolute difference compared to RVFW‐4C (1.4 ± 1.2%, 1.8 ± 1.5%, and 1.7 ± 1.9%, respectively, vs 2.4 ± 2.4, 2.2 ± 1.9, and 2.6 ± 3.0, respectively, P < 0.01). ICC ranged between 0.83 and 0.90 for RVGLS‐4C measurements and between 0.76 and 0.79 for RVFW‐4C measurements. RVFW‐SWT was feasible in 82.5% of the subjects and showed noninferior reproducibility compared to RVFW‐4C. Basal and apical segments demonstrating the highest variability.ConclusionsThe measurement of RVGLS‐4C appears to be reliable in clinical practice and demonstrates better reproducibility compared to RV free wall LS measurements. Segmental LS measurements presented high variability and such parameters should be interpreted with caution.

Keywords

Adult, Male, Observer Variation, Heart Ventricles, Ventricular Dysfunction, Right, Reproducibility of Results, Echocardiography, Ventricular Function, Right, Feasibility Studies, Humans, Female, Prospective Studies

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
16
Top 10%
Top 10%
Top 10%
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