Table 4.
Comparison of hypothesized predictors of PH in the PH and no-PH groups
| PH mean ± SD |
No-PH mean ± SD |
P | |
|---|---|---|---|
| Main PA diameter (mm) | 32.2 ± 5.3 | 29.0 ± 3.9 | 0.0021 |
| Left PA diameter (mm) | 24.2 ± 4.6 | 22.9 ± 3.2 | 0.1225 |
| Right PA diameter (mm) | 24.0 ± 4.3 | 23.4 ± 3.7 | 0.4618 |
| RDPA diameter (mm) | 19.4 ± 4.4 | 17.0 ± 2.6 | 0.0072 |
| True RDPA diameter (mm) | 15.3 ± 3.7 | 13.4 ± 2.4 | 0.0027 |
| True LDPA diameter (mm) | 19.4 ± 3.8 | 18.1 ± 3.4 | 0.0509 |
| RV free wall thickness (mm) | 5.4 ± 2.4 | 4.0 ± 1.2 | 0.0023 |
| RV lumen diameter (mm) | 36.9 ± 10.1 | 35.3 ± 7.9 | 0.4293 |
| LV free wall (mm) | 11.6 ± 3.6 | 11.1 ± 3.3 | 0.4820 |
| LV lumen (mm) | 44.0 ± 15.5 | 42.9 ± 9.5 | 0.9942 |
| Hilar diameter (mm) | 127.1 ± 13.7 | 118.2 ± 12.0 | 0.0018 |
| RV wall/LV wall ratio | 0.51 ± 0.25 | 0.38 ± 0.14 | 0.0214 |
| RV lumen/LV lumen ratio | 1.02 ± 0.85 | 0.85 ± 0.26 | 0.9796 |
| L apical artery/bronchus ratio | 1.33 ± 0.43 | 1.27 ± 0.35 | 0.6023 |
| Hilar/thoracic ratio | 0.51 ± 0.04 | 0.49 ± 0.04 | 0.0687 |
| Main PA/AA ratio | 0.97 ± 0.2 | 0.86 ± 0.13 | 0.0014 |
| Main PA/DA ratio | 1.24 ± 0.27 | 1.15 ± 0.17 | 0.2023 |
| PH % | no-PH % | ||
| IV septum bowed into LV | 16.7 | 2.7 | 0.0608 |
See table 1 for definitions of radiographic metrics.