Key result
Left atrial diameter measured by echocardiography correlated poorly with left atrial volume measured by computed tomography (r = 0.49, P < 0.001) in patients with atrial fibrillation.
Why the study?
Does left atrial diameter measured by echocardiography accurately correlate with left atrial volume measured by computed tomography in patients with atrial fibrillation?
Population
50 patients with symptomatic atrial fibrillation referred for catheter ablation, mean age 56 +/- 12 years, 5…
Comparison
Measurement of left atrial diameter by… vs Measurement of left atrial volume by 64-slice…
Design
Cross-sectional
Authors
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Echocardiographic LAD should not substitute for CT LAV assessment in AF; leaves open whether volumetric measures improve ablation candidate selection.
Cross-Sectional (n=50)
Does left atrial diameter measured by echocardiography accurately correlate with left atrial volume measured by computed tomography in patients with atrial fibrillation?
Effect estimate: r = 0.49
p-value: p=< 0.001
Left atrial diameter measured by echocardiography correlates poorly with left atrial volume measured by CT, suggesting LAD alone should not be used to exclude AF patients from catheter ablation.
Hof et al. (2008) conducted a cross-sectional in Symptomatic atrial fibrillation (n=50). Left atrial diameter by echocardiography vs. Left atrial volume by computed tomography was evaluated on Correlation between left atrial diameter and left atrial volume (r = 0.49, p=< 0.001). Left atrial diameter measured by echocardiography correlated poorly with left atrial volume measured by computed tomography (r = 0.49, P < 0.001) in patients with atrial fibrillation.
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