Table 5.
Intra-observer and inter-observer variability for LVEDV and LV mass
|
Intra-observer |
Inter-observer |
|||
|---|---|---|---|---|
| Absolute | % | Absolute | % | |
|
LVEDV
(mL)
| ||||
| TTE |
11.2 ± 6.3 |
10.3 ± 4.1 |
13.1 ± 5.4 |
9.7 ± 4.2 |
| CMR |
7.4 ± 4.2 |
6.2 ± 3.1 |
9.3 ± 2.5 |
6.2 ± 3.0 |
|
LV mass
(g)
| ||||
| TTE |
13.0 ± 3.5 |
10.4 ± 5.2 |
12.1 ± 4.3 |
10.3 ± 3.8 |
| CMR | 7.8 ± 3.2 | 5.9 ± 2.1 | 9.0 ± 3.2 | 6.9 ± 2.4 |
Absolute values are defined as the population mean ± SD of absolute differences between repeated measurements. % values are defined as the population mean ± SD of absolute differences of repeated measurements normalized by the average of the two repeated measurements. CMR, cardiovasculart MR; LVEDV, left ventricular end-diastolic volume; LV mass, left ventricular mass; TTE, transthoracic echocardiography.