Accuracy of echocardiographic area-length method in chronic myocardial infarction: comparison with cardiac CT in pigs

Table 2 Left ventricle volumes at diastole (EDV) and systole (ESV) and ejection fraction (EF) measured by cardiac CT or echocardiography and either Simpson’s, or Cylinder-hemiellipsoid methods in pigs with chronic myocardial infarction (MI) and controls

	Control (n = 5)	MI (n = 9)	All (n = 14)	p
EDV (mL)
Cardiac CT	140 ± 19	227 ± 96	196 ± 88	0.07
Modified Simpson’s	124 ± 18	225 ± 126 ^a	189 ± 111	0.1
Cylinder hemiellipsoid	112 ± 22	230 ± 140 ^b	188 ± 125	0.09
ESV (mL)
Cardiac CT	49 ± 2	137 ± 79	106 ± 76	0.03
Modified Simpson’s	59 ± 14	149 ± 98 ^c	117 ± 89	0.07
Cylinder hemiellipsoid	47 ± 14	150 ± 94 ^d	113 ± 90	0.03
EF (%)
Cardiac CT	64 ± 4	42 ± 10	50 ± 14	<0.001
Modified Simpson’s	53 ± 5	37 ± 8 ^e	42 ± 11	0.0015
Cylinder hemiellipsoid	59 ± 7	38 ± 6 ^f	46 ± 12	<0.001

^a P = 0.86 vs. Cardiac CT, ^b P = 0.85 vs. Cardiac CT, ^c P = 0.72 vs. Cardiac CT, ^d P = 0.82 vs. Cardiac CT, ^e P = 0.1 vs. Cardiac CT, ^f P = 0.3 vs. Cardiac CT

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