Accuracy | Inter-measurement | |||
Outer ring | Inner ring | Outer ring | Inner ring | |
Diameters | ||||
Intraclass correlation coefficient | ||||
3DE | 0.90 | 0.90 | 0.92 | 0.92 |
MSCT | 0.97 | 0.98 | 0.98 | 0.97 |
CMR | 0.97 | 0.99 | 0.95 | 0.98 |
Bias (lower, upper 95% limits of agreement), cm | ||||
3DE | 0.69 (−2.63, 4.00) | −1.01 (−3.93, 1.92) | ||
MSCT | 0.06 (−1.86, 1.97) | 0.36 (−1.08, 1.79) | ||
CMR | −0.11 (−1.93, 1.70) | 0.18 (−0.94, 1.30) | ||
Area | ||||
Intraclass correlation coefficient | ||||
3DE | 0.92 | 0.97 | ||
MSCT | 0.99 | 0.97 | ||
CMR | 0.99 | 0.99 | ||
Bias (lower, upper 95% limits of agreement), cm2 | ||||
3DE | 0.07 (−0.95, 1.09) | −0.09 (−0.35, 0.17) | ||
MSCT | −0.05 (−0.32, 0.23) | 0.09 (−0.18, 0.36) | ||
CMR | 0.04 (−0.32, 0.25) | 0.09 (−0.06, 0.25) |
3DE, three-dimensional echocardiography; CMR, cardiac magnetic resonance; MSCT, multi-slice CT.