Correlation of computed tomography-derived pulmonary parameters with mPAP and PVR in patients with PH and COPD/emphysema or ILD
| PH–COPD/emphysema | PH–ILD | |||
| mPAP, R value/p-value | PVR, R value/p-value | mPAP, R value/p-value | PVR, R value/p-value | |
| Subjects n | 44 | 42 | 46 | 44 |
| Pulmonary vessels <0.8 mm | −0.37/0.01 | −0.25/0.1 | −0.37/0.01 | −0.29/0.053 |
| Pulmonary vessels <1.2 mm | −0.37/0.01 | −0.26/0.1 | −0.37/0.01 | −0.30/0.051 |
| Pulmonary vessels <1.6 mm | −0.35/0.02 | −0.23/0.1 | −0.37/0.01 | −0.29/0.06 |
| Lung volume | −0.32/0.03 | −0.25/0.1 | −0.32/0.03 | −0.27/0.07 |
| Total vessel volume | −0.17/0.2 | −0.16/0.3 | −0.16/0.2 | −0.10/0.5 |
PH: pulmonary hypertension; ILD: interstitial lung disease; mPAP: mean pulmonary arterial pressure; PVR: pulmonary vascular resistance.