Table 2 Intra-observer and inter-observer variability for LV parameters
| Â | Intra- observer | Inter-observer | ||||
|---|---|---|---|---|---|---|
|  | SEM (95% CI) | CoV | Bias ± limits of agreement | SEM (95% CI) | CoV | Bias ± limits of agreement |
T&P included as part of the LV volume | ||||||
LVEDV | ||||||
 Acute (n = 40) | 5.0 (4.1 to 6.4) ml | 2.1% | 0 ± 7.2 m | 5.5 (4.5 to 7.0) ml | 2.7% | −2.9 ± 9.6 ml |
 Chronic (n = 40) | 5.7 (4.7 to 7.4) ml | 2.3% | 0.1 ± 8.4 ml | 6.3 (5.2 to 8.1) ml | 3.3% | 0.6 ± 11.8 ml |
LVESV | ||||||
 Acute (n = 40) | 4.2 (3.5 to 5.4) ml | 3.4% | −1.4 ± 6.0 ml | 4.5 (3.7 to5.7) ml | 4.9% | −0.6 ± 8.8 ml |
 Chronic (n = 40) | 5.1 (4.2 to 6.5) ml | 3.4% | −0.1 ± 6.0 ml | 5.9 (4.8 to 7.6) ml | 5.0% | 0 ± 8.8 ml |
LVM | ||||||
 Acute (n = 40) | 7.4 (6.1 to 9.5) g | 3.8% | 0.3 ± 8.6 g | 7.7 (6.3 to 9.9) g | 4.4% | −2.2 ± 10.0 g |
 Chronic (n = 40) | 6.6 (5.4 to 8.5) g | 4.5% | 1.4 ± 9.8 g | 7.6 (6.1 to 9.8) g | 5.0% | −1.8 ± 10.6 g |
LVEF | ||||||
 Acute (n = 40) | 3.2 (2.7 to 4.2) % | 4.1% | 0.9 ± 4.0% | 2.2 (1.8 to 2.9) % | 4.9% | −0.4 ± 4.8% |
 Chronic (n = 40) | 1.9 (1.5 to2.4) % | 3.2% | 0 ± 3.4% | 2.7 (2.2 to3.5) % | 4.6% | 0.2 ± 4.8% |
T&P included as part of the LV mass | ||||||
LVEDV | ||||||
 Acute (n = 40) | 5.1 (4.2 to 6.5) ml | 2.6% | −0.4 ± 8.2 ml | 5.3 (4.3 to 6.8) ml | 3.1% | −2.6 ± 10.0 ml |
 Chronic (n = 40) | 4.1 (3.4 to 5.3) ml | 2.5% | 0.9 ± 8.2 ml | 5.2 (4.3 to 6.7) ml | 3.5% | −0.4 ± 11.6 ml |
LVESV | ||||||
 Acute (n = 40) | 4.7 (3.8 to 6.0) ml | 3.1% | −0.1 ± 4.8 ml | 5.5 (4.5 to 7.0) ml | 6.1% | −2.8 ± 9.8 ml |
 Chronic (n = 40) | 4.4 (3.6 to 5.6) ml | 3.5% | 1.0 ± 5.2 ml | 5.3 (4.3 to 6.8) ml | 6.2% | −2.2 ± 9.6 ml |
LVM | ||||||
 Acute (n = 40) | 6.3 (5.2 to 8.1) g | 3.2% | 0.6 ± 8.2 g | 7.4 (6.1 to 9.5) g | 4.3% | −3.3 ± 11.2 g |
 Chronic (n = 40) | 4.0 (3.3 to 5.2) g | 3.4% | −0.9 ± 8.0 g | 4.2 (3.5 to 5.4) g | 5.0% | −1.3 ± 11.8 g |
LVEF | ||||||
 Acute (n = 40) | 1.7 (1.4 to 2.2) % | 3.5% | −0.2 ± 3.6% | 2.4 (2.0 to 3.1) % | 6.1% | 0.9 ± 6.2% |
 Chronic (n = 40) | 2.0 (1.6 to 2.6)% | 3.2% | −0.2 ± 3.6% | 2.6 (2.2 to 3.4) % | 5.1% | 1.3 ± 5.8% |