Table 2 Intra-observer and short-term inter-study variability for left ventricular volumes, mass and function in healthy adult subjects
Parameter | Variability | Bias ± SD | p | LoA | CV (%) | ICC (95% CI) |
|---|---|---|---|---|---|---|
LVEF (%) | Intra-observer Inter-study | 1.00 ± 1.27 1.50 ± 1.76 | 0.11 0.09 | -1.48 to 3.48 -1.95 to 4.95 | 1.8 2.4 | 0.99 (0.94 to 1.00) 0.98 (0.89 to 1.00) |
LVEDV (mL) | Intra-observer Inter-study | 0.67 ± 3.62 0.50 ± 6.47 | 0.67 0.86 | -6.43 to 7.77 -12.18 to 13.18 | 2.6 4.7 | 0.99 (0.95 to 1.00) 0.98 (0.85 to 1.00) |
LVESV (mL) | Intra-observer Inter-study | -0.83 ± 2.79 -1.33 ± 5.00 | 0.50 0.54 | -6.30 to 4.64 -11.13 to 8.47 | 7.0 12.5 | 0.99 (0.93 to 1.00) 0.97 (0.78 to 1.00) |
LVSV (mL) | Intra-observer Inter-study | 1.00 ± 2.97 1.67 ± 4.03 | 0.45 0.36 | -4.82 to 6.82 -6.23 to 9.57 | 3.1 4.2 | 0.98 (0.85 to 1.00) 0.96 (0.74 to 0.99) |
LVM (g) | Intra-observer Inter-study | -0.33 ± 2.16 0.00 ± 3.03 | 0.21 1.00 | -4.56 to 3.90 -5.94 to 5.94 | 1.5 2.1 | 0.99 (0.95 to 1.00) 0.99 (0.90 to 1.00) |