Table 4.
Model validation.
| Parameter | Imaging measurements (CTA, Doppler) | Predictive model (pre-TMVR data) | Validation model (post-TMVR data) |
|---|---|---|---|
| α angle (deg) | 142 | 158 | 150 |
| C-sept (mm) | 3.1 | 3.6 | 3.7 |
| LV AR | 1.51 | 1.65 | 1.55 |
| OF (%) | 9 | 6.9 | 6.5 |
| Mean PG LVOT (mmHg) | 4 | 2.95 | 3.04 |
| Max PG LVOT (mmHg) | 5.76 | 6.8 | 5.94 |
| Max AV velocity (m/s) | 2.97 | 3.38 | 3.10 |
α = angle of the aorto-mitral junction at end systole. C-sept = distance between the mitral valve coaptation point and the intraventricular septum at end systole. LV AR = left ventricular aspect ratio at end systole. PG = intraventricular pressure gradients.