Key result
Routine echocardiography demonstrates excellent LVEF reproducibility with an ICC of ~0.95 and strong CMR agreement.
Why the study?
Evidence evaluating a comprehensive panel of routinely used left- and right-sided echocardiographic parameters within standardized real-world clinical workflows from Latin American centers was limited.
Comparison
Routine echocardiographic measurements vs cardiac magnetic resonance (CMR)
Design
Two-cohort observational reproducibility and agreement study
Authors
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May warrant caution interpreting routine echo parameters clinically; leaves open standardization needs across diverse centers.
Cross-Sectional (n=63)
Double-blind (observers blinded to each other's measurements)
No
Effect estimate: ICC 0.953 (95% CI 0.926-0.970)
Routine echocardiographic measurements of left ventricular ejection fraction are highly reproducible and agree well with CMR, supporting their reliability in clinical practice, whereas right ventricular indices show greater variability.
Reyes-Toledo et al. (2026) conducted a cross-sectional in Cardiovascular disease or healthy volunteers (n=63). Routine echocardiographic measurements vs. Cardiac magnetic resonance (CMR) or interobserver comparison was evaluated on Interobserver reproducibility of left ventricular ejection fraction (LVEF) (ICC 0.953, 95% CI 0.926-0.970). Routine echocardiographic measurements demonstrated excellent interobserver reproducibility for left ventricular ejection fraction (ICC 0.953) and excellent agreement with cardiac magnetic resonance.
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