Real-time three-dimensional echocardiography established upper normal reference values of 41 mL/m2 for max LAVI and 47 mL/m2 for max RAVI, and lower normal values of 45% for LAEF and 46% for RAEF.
Cross-Sectional (n=166)
What are the normal reference ranges and reproducibility for left and right atrial volume indexes and ejection fractions obtained with real-time three-dimensional echocardiography in healthy adults?
Real-time three-dimensional echocardiography provides a fast, reproducible, bedside method for assessing atrial dimensions and contractility, with established normal reference ranges for clinical application.
AIMS: The aim of this study was to obtain normal reference ranges and intra-observer reproducibility for left (L) and right (R) atrial (A) volume indexes (VI, corrected for body surface area) and ejection fractions (EF) with real-time three-dimensional echocardiography. METHODS AND RESULTS: One hundred and sixty-six participants, 79 males and 87 females, aged 29-79 years considered free from clinical and subclinical cardiovascular disease, were included. Normal ranges are defined as 95% reference values for atrial dimensions and reproducibility as coefficients of variations (CVs) for repeated measurements. Upper normal reference values were 41 mL/m(2) for maximum (max) LAVI and 19 mL/m(2) for minimum (min) LAVI. The lower normal reference value was 45% for LAEF. The respective values for RA were 47 mL/m(2), 20 mL/m(2), and 46%. The only relevant gender difference was a higher upper normal max RAVI among males vs. females. The CVs for repeated measurements were 9% for max LAVI, 8% for max RAVI, 13% for LAEF, and 14% for RAEF. CONCLUSION: The present study provides normal ranges for atrial dimensions and contractility with a new, fast, and reproducible technique that can be used bedside without offline analysis.
Aune et al. (Tue,) conducted a cross-sectional in Healthy participants (n=166). Real-time three-dimensional echocardiography was evaluated on Normal reference ranges (95% reference values) for left and right atrial volume indexes and ejection fractions. Real-time three-dimensional echocardiography established upper normal reference values of 41 mL/m2 for max LAVI and 47 mL/m2 for max RAVI, and lower normal values of 45% for LAEF and 46% for RAEF.