Table 2.
Models diagnostic performance in the test cohort to predict severe PH (mPAP ≥ 35 mmHg OR mPAP >25 and CI < 2l/min/m2).
| Parameter | MRI model (n=99) | Whitfield model (n=99) | Echo sPAP (n=68) |
|---|---|---|---|
| Correlation with RHC-measured mPAP | 0.71 | 0.73 | 0.64 |
| ICC with mPAP | 0.53 | 0.51 | 0.13 |
| Sensitivity (%) | 92.3% | 80.8% | 63.2% |
| Specificity (%) | 70.2% | 87.2% | 86.7% |
| Positive predictive value (%) | 77.4% | 87.5% | 85.7% |
| Negative predictive value (%) | 89.2% | 80.4% | 65.0% |
| AUC | 0.91 | 0.93 | 0.88 |
AUC, area under the receiver operating characteristic curve, ICC, intraclass correlation coefficient, mPAP, mean pulmonary arterial pressure, RHC, right-sided heart catheterisation; PH: pulmonary hypertension; CI: cardiac index.