Automated quantification of left atrial size using three-beat averaging real-time three dimensional Echocardiography in patients with atrial fibrillation

Table 2 Maximal left atrial volume (mL) using different modalities and comparison of it by echocardiography to that by computed tomography

Modality	Mean ± SD	Correlation with maximal LA volume by CT
Modality	Mean ± SD	R²	P value	ICC	P value
PE-2DE	68.4 ± 28.2	0.48	<0.001	0.64	<0.001
AL-2DE	89.2 ± 33.1	0.47	<0.001	0.67	<0.001
3BA-RT3DE	100.6 ± 31.8	0.50	0.001	0.65	<0.001
CT	131.2 ± 42.2

AL area-length method, CT computed tomography, ICC intra-class correlation coefficient, LA left atrium, PE prolate-ellipse method, 3BA-RT3DE three-beat averaging real-time three-dimensional echocardiography, SD standard deviation, 2DE two dimensional echocardiography

ISSN: 1476-7120