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Table 1 Correlation and agreement of 2DE methods with CMR

From: Optimization of left ventricular ejection fraction measurement by two-dimensional echocardiography in patients with repaired tetralogy of Fallot: comparison of geometric methods with cardiovascular magnetic resonance

Method

Mean LVEF (SD)

Correlation

Mean difference (limits of agreement)

CMR (Simpson's)

53.3 (7.2)

-

-

CMR AL

55.7 (8.9)

r=0.90, p<0.0001

-2.5 (-10.1 to 5.2)

2DE visual estimate

56.8 (10.0)

r=0.69, p=0.001

-3.5 (-17.8 to 10.8)

2DE AL

57.6 (8.1)

r=0.59, p=0.01

-4.3 (-18.1 to 9.4)

2DE BiS

57.9 (9.5)

r=0.35, p=0.13

-4.6 (-23.7 to 14.4)