Table 5 Intra- and inter-observer reproducibility of 3D regional parameters.
Parameters | Intra-observer (n = 20) | Inter-observer (n = 20) | ||||
|---|---|---|---|---|---|---|
ICC | Bias (limits of agreement) | CV, % | ICC | Bias (limits of agreement) | CV, % | |
ED curvedness (CED), mm−1 | 0.993 | 0.0007 (−0.0027, 0.0040) | 3.3 | 0.991 | 0.0011 (−0.0026, 0.0047) | 3.9 |
ES curvedness (CES), mm−1 | 0.988 | −0.0020 (−0.0101, 0.0142) | 6.7 | 0.985 | −0.0021 (−0.0112, 0.0157) | 7.5 |
ED wall thickness (WTED), mm | 0.981 | 0.02 (−0.74, 0.78) | 4.9 | 0.976 | 0.16 (−0.70, 1.01) | 5.9 |
ES wall thickness (WTES), mm | 0.985 | 0.01 (−1.10, 1.11) | 4.5 | 0.969 | 0.06 (−1.50, 1.62) | 6.3 |
ED wall stress index (σi,ED) | 0.952 | −0.03 (−0.49, 0.43) | 7.0 | 0.955 | −0.12 (−0.57, 0.33) | 7.6 |
ES wall stress index (σi,ES) | 0.949 | 0.02 (−0.74, 0.78) | 8.5 | 0.924 | −0.02 (−0.24, 0.21) | 10.1 |
Peak systolic wall stress (σES), 1000 N/m2 | 0.951 | −0.24 (−3.53, 3.05) | 8.8 | 0.931 | −0.27 (−4.02, 3.49) | 10.0 |
Area strain (AS), % | 0.989 | 0.01 (−0.06, 0.09) | 3.8 | 0.980 | 0.01 (−0.09, 0.11) | 5.0 |
