Table 5 Intra- and inter-observer measurement variability
Bland–Altman* | ICC† | CV, % | ||
|---|---|---|---|---|
4D flow CMR indirect method | ||||
Intra-observer | MV SV | − 1.0 (21 to − 23) | 0.982 | 7 |
LVOT SV | − 1.1 (9 to − 11) | 0.979 | 5 | |
Inter-observer | MV SV | 0.8 (37 to − 36) | 0.938 | 12 |
LVOT SV | 1.0 (19 to − 17) | 0.919 | 10 | |
4D flow CMR direct method | ||||
Intra-observer | MV RVol | − 2.7 (14 to − 20) | 0.971 | 17 |
Inter-observer | MV RVol | − 3.1 (33 to − 39) | 0.868 | 32 |
Standard CMR method | ||||
Intra-observer | LV SV | 1.5 (8 to − 5) | 0.998 | 2.5 |
Ao FF | − 0.1 (3 to − 3) | 0.999 | 1.5 | |
Inter-observer | LV SV | 2.7 (19 to − 13) | 0.989 | 6 |
Ao FF | 0.5 (10 to − 9) | 0.986 | 5 | |
2D-PISA method | ||||
Intra-observer | MV RVol | 2.1 (20 to − 16) | 0.986 | 12 |
Inter-observer | MV RVol | 3.2 (34 to − 28) | 0.959 | 15 |