Table 2. Interobserver and Intra-observer Reproducibility Analysis of Left Atrial Appendage (LAA) and Left Atrium (LA) Volumes.

	Two-Chamber View								Transversal View
	LAA interobserver		LAA intra-observer		LA interobserver		LA intra-observer		LAA interobserver		LAA intra-observer		LA interobserver		LA intra-observer
	ICC	CV%	ICC	CV%	ICC	CV%	ICC	CV%	ICC	CV%	ICC	CV%	ICC	CV%	ICC	CV%
Excellent	0.929	10.1	0.978	6.0	0.977	4.3	0.998	1.7	0.976	5.3	0.939	8.1	0.967	8.3	0.995	3.3
Good	0.970	13.3	0.988	9.1	0.987	4.6	0.988	3.6	0.943	21.0	0.988	8.2	0.948	8.9	0.979	5.8
Average	0.927	18.2	0.984	5.5	0.946	11.1	0.996	3.1	0.972	8.6	0.984	8.0	0.970	9.0	0.998	2.8
Poor	0.978	12.3	0.995	5.0	0.972	6.9	0.989	5.2	0.946	17.2	0.954	13.7	0.905	14.5	0.985	5.5
Total	0.960	13.5	0.988	6.4	0.996	6.7	0.992	3.4	0.953	13.0	0.970	9.5	0.944	10.2	0.989	4.3

Forty measurements pairs included 10 patients from each image quality category.