Table 2.

Imaging Parameters

	Overall (n=285)	MW-LGE + (n=34)	MW-LGE − (n=251)	P
Cardiac Magnetic Resonance
Left Ventricular Function
Ejection fraction (%)	27 ± 8	24 ± 9	28 ± 8	0.02
Stroke volume (ml)	60 ± 23	68 ± 40	59 ± 19	0.22
(ml/m2)	31 ± 11	34 ± 21	31 ± 9	0.42
Cardiac Output (L/min)	4.7 ± 1.9	5.6 ± 3.2	4.6 ± 1.6	0.09
(L-m2/min)	2.4 ± 0.9	2.8 ± 1.7	2.4 ± 0.7	0.20
Left Ventricular Remodeling Indices
End-diastolic volume (ml)	230 ± 78	287± 93	223 ± 73	<0.001
(ml/m2)	119 ± 37	141 ± 45	116 ± 35	<0.001
End-systolic volume (ml)	170 ± 72	218 ± 90	163 ± 67	0.001
(ml/m2)	88 ± 35	107 ± 43	85 ± 33	0.001
Myocardial mass (gm)	192 ± 56	219 ± 56	188 ± 55	0.003
(gm/m2)	99 ± 26	108 ± 24	98 ± 26	0.04
Concentricity (gm/ml)	0.9 ± 0.2	0.8 ± 0.2	0.9 ± 0.2	0.12
Anteroseptal wall thickness (cm)	1.0 ± 0.2	1.0 ± 0.2	1.0 ± 0.2	0.41
Posterolateral wall thickness (cm)	0.9 ± 0.2	0.9 ± 0.2	0.9 ± 0.2	0.88
Peak Systolic Wall stress (kPa)	34 ± 8.8	37 ± 10	33 ± 9	0.02
Left Atrial Geometry
Diameter (cm)	4.2 ± 0.7	4.3 ± 0.6	4.2 ± 0.7	0.38
Area (cm2)	27 ± 7	31 ± 7	26 ± 7	<0.001
(cm2/m2)	14 ± 4	15 ± 3	14 ± 4	0.06
	Overall (n=206)	MW-LGE + (n=22)	MW-LGE − (n=184)	P
Transthoracic Echocardiography*
Left Ventricular Function
Ejection fraction (%)	26 ± 10	23 ± 10	27 ± 9	0.10
Left Ventricular Remodeling Indices
End-diastolic diameter (cm)	6.2 ± 0.8	6.7 ± 1.1	6.2 ± 0.8	0.04
End-systolic diameter (cm)	5.5 ± 0.9	6.0 ± 1.2	5.4 ± 0.9	0.04
Myocardial mass (gm)	249 ± 70	288 ± 70	243 ± 68	0.004
(gm/m2)	128 ± 33	142 ± 31	126 ± 33	0.03
Relative wall thickness (cm)	0.30 ± 0.06	0.29 ± 0.09	0.30 ± 0.06	0.61
Left Atrial Geometry
Diameter (cm)	4.4 ± 0.8	4.5 ± 1.0	4.3 ± 0.8	0.33

^*Available in 72% of the population (mean interval of 1.7 ± 3.0 days of CMR)