Table 5 Intra-observer reproducibility as evaluated by the absolute difference, coefficient of variation (COV) (expressed in %) and interclass correlation (ICC) between results from the first (analysis1) and second (analysis2) post-processing of data from the same CMR examinations by the same observer.
Analysis1 | Analysis2 | Absolute difference | COV | ICC [95%CI] (p value) | |
|---|---|---|---|---|---|
LVM (µg) | 80.50 (8.00) | 77.61 (7.35) | 6.37 (6.97) | 7.50 (7.55) | 0.285 [−0.355–0.754] (0.187) |
LVEDV (µL) | 54.65 (7.06) | 51.37 (7.24) | 4.01 (4.53) | 6.90 (6.79) | 0.675 [0.153–0.907] (0.009) |
LVESV (µL) | 17.44 (5.36) | 17.09 (5.39) | 2.95 (3.81) | 12.91 (13.28) | 0.616 [0.054–0.887] (0.018) |
LVEF (%) | 68.47 (6.76) | 67.25 (5.88) | 4.45 (3.35) | 6.37 (4.92) | 0.623 [0.066–0.889] (0.016) |
RVEDV (µL) | 21.63 (4.73) | 19.81 (3.79) | 2.64 (3.61) | 10.70 (13.46) | 0.503 [−0.111–0.846] (0.050) |
RVESV (µL) | 6.05 (2.92) | 6.64 (3.16) | 1.30 (1.19) | 17.76 (17.78) | 0.839 [0.502–0.957] (<0.001) |
RVEF (%) | 72.18 (12.03) | 67.17 (11.83) | 5.76 (5.51) | 7.99 (7.03) | 0.795 [0.398–0.944] (0.001) |
Ecc base | −12.84 (2.79) | −12.85 (2.64) | 0.34 (0.39) | 3.01 (3.57) | 0.983 [0.938–0.996] (<0.001) |
Ecc apex | −15.24 (2.52) | −15.02 (2.27) | 1.01 (0.57) | 6.89 (3.90) | 0.886 [0.627–0.970] (<0.001) |
Err base | 4.60 (3.04) | 4.68 (2.63) | 0.91 (1.12) | 16.70 (17.85) | 0.879 [0.608–0.968] (<0.001) |
Err apex | 7.03 (2.95) | 7.22 (2.81) | 0.95 (0.87) | 13.93 (11.65) | 0.904 [0.681–0.975] (<0.001) |
Ell | −13.18 (2.13) | −13.36 (2.33) | 0.44 (0.34) | 3.49 (2.51) | 0.970 [0.891–0.992] (<0.001) |
