Table 7. Intra- and interobserver reproducibility of the parameters describing TV geometry.
| Parameters | Intra-observer | Inter-observer | |||
|---|---|---|---|---|---|
| ICC | CV | ICC | CV | ||
| Annulus area 3D (cm2) | 0.930 | 0.19 | 0.872 | 0.23 | |
| Annulus area 2D (cm2) | 0.930 | 0.19 | 0.862 | 0.23 | |
| Annulus area change (%) | 0.906 | 0.30 | 0.852 | 0.31 | |
| Annulus perimeter (cm) | 0.959 | 0.10 | 0.929 | 0.11 | |
| 4Ch diameter (cm) | 0.948 | 0.12 | 0.882 | 0.13 | |
| 4Ch diastolic diameter (cm) | 0.977 | 0.12 | 0.900 | 0.12 | |
| 2Ch diameter (cm) | 0.928 | 0.10 | 0.872 | 0.11 | |
| Major axis (cm) | 0.949 | 0.11 | 0.934 | 0.12 | |
| Major diastolic axis (cm) | 0.944 | 0.08 | 0.917 | 0.09 | |
| Minor axis (cm) | 0.945 | 0.12 | 0.860 | 0.13 | |
| Sphericity index (%) | 0.911 | 0.09 | 0.901 | 0.09 | |
| Excursion (mm) | 0.994 | 0.21 | 0.985 | 0.43 | |
| Coaptation point height (mm) | 0.907 | 0.23 | 0.891 | 0.21 | |
| MTH (mm) | 0.925 | 0.22 | 0.881 | 0.23 | |
| Tenting volume (mL) | 0.973 | 0.36 | 0.967 | 0.38 | |
TV, tricuspid valve; ICC, intraclass correlation coefficient; CV, coefficient of variation; 3D, 3-dimensional; 2D, 2-dimensional; 4Ch diameter, 4-chamber diameter; 2Ch diameter, 2-chamber diameter; MTH, maximal tenting height.