. Author manuscript; available in PMC: 2010 Oct 29.

Published in final edited form as: Circ Cardiovasc Imaging. 2010 Jul 14;3(5):527–535. doi: 10.1161/CIRCIMAGING.109.900761

Table 3.

Cardiac MRI findings.

	All n=50	STEMI n=38 (76%)	NSTEMI n=12 (24%)	P
*LV dimensions and function, mean±SD*
LV ejection fraction, %	51±11	51±10	51±15	0.94
End-diastolic volume index, ml/m²	84±25	84±24	86±29	0.77
End-systolic volume index, ml/m²	43±20	42±18	45±28	0.74
Left atrial volume index, ml/m²	44±14	42±14	43±14	0.68
LV mass, g/m²	69±18	69±17	70±22	0.80

*Late gadolinium enhancement, n (%)*
Number of affected territories per patient
1	46 (92)	37 (97)	9 (75)	0.013
2	4 (8)	1 (3)	3 (25)
Wall motion score index	1.4 (1.2, 1.7)	1.4 (1.2, 1.6)	1.2 (1.0, 1.9)	0.39
*Transmurality, n (%)*	34 (68)	26 (68)	8 (67)	0.91
Mean±SD acute infarct size, %	18.8±12.4	21.4±12.5	10.7±8.1	0.0016
Microvascular obstruction	42 (84%)	32 (84%)	10 (83%)	0.94

*Edema imaging*
Mean±SD area-at-risk, %	32.2±11.9	34.7±11.3	24.3±10.8	0.0074

*Myocardial salvage*
Mean±SD % salvage (%AAR - %IS)	13.5±8.6	13.4±8.4	13.7±9.8	0.78