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. Author manuscript; available in PMC: 2008 Mar 1.

Published in final edited form as: J Card Fail. 2007 Mar;13(2):100–107. doi: 10.1016/j.cardfail.2006.10.018

TABLE 2.

Differences in Radiographically Determined Volumes and Structural Echocardiographic Measures across Groups

	Control	Group A	Group B	p-value

Absolute Volumetric Estimations
Total Thoracic Volume (cm³)	8445.0 ± 1496.8	8070.8 ± 1716. 6	8252.0 ± 1493.5	0.63
Blood and Tissue Volume (cm³)	937.6± 134.2	997.5± 160.9	1049.4 ± 121.2^*	0.03
Diaphragm Volume (cm³)	942.6 ± 295.2	936.3± 331.4	1161.3 ± 493.2	0.09
Cardiac Volume (cm³)	608.6 ± 156.7	978.7 ± 350.7^*	1337.5 ± 384.0^*^†	0.001
Lung Volume (cm³)	5956.3 ± 1197.2	5158.5 ± 1422.4	4703.8 ± 1361.3^*	0.003
Percent of Total Thoracic Cavity Volume
Blood and Tissue (%)	11.3 ± 2.1	12.8 ± 3.4	13.1 ± 2.6^*	0.03
Diaphragm (%)	11.1 ± 2.7	11.8± 4.0	13.9 ± 5.1^*	0.04
Cardiac (%)	7.3 ± 1.7	12.3 ± 4.4^*	16.8 ± 6.0^*^†	<0.001
Lung (%)	70.3 ± 3.6	63.1 ± 9.5^*	56.2 ± 7.2^*^†	<0.001
Structural Echocardiographic Measures
LA Dimension (mm)	33.6 ± 4.7	45.5 ± 9.8^*	49.7 ± 6.5^*	<0.001
LV Mass (g)	163.4 ± 45.5	271.5 ± 103.4^*	271.8 ± 68.8^*	<0.001
LV Mass Index (g/m²)	82.2 ± 22.9	139.2 ± 44.3^*	134.2 ± 35.9^*	0.001

Data are presented as mean±SD unless otherwise noted. LA, left atrial; LV, left ventricular.

^*

=p<0.05 vs. control group.

^†

=p<0.05 vs. group A.