Table 4b.
Diagnostic Performance of Echo RV Parameters for Right Ventricular Hypertrophy (Validation Cohort)
| AUC (95% CI) | Cutoff | Sensitivity | Specificity | Accuracy | PPV | NPV | ||
|---|---|---|---|---|---|---|---|---|
| ASE Guideline Recommended Wall Thickness Cutoff | ||||||||
| Subcostal RV free wall (cm) | - | 5.00mm | 30.6% | 98.0% | 64.6% | 93.8% | 59.0% | |
| Cohort-Derived Wall Thickness Cutoffs | ||||||||
| Proximal RVOT wall thickness (mm) | Male | 0.74 (0.60–0.88) | 3.55mm | 47.9% | 81.6% | 64.9% | 71.9% | 61.5% |
| Female | 0.77 (0.63–0.90) | 3.40mm | ||||||
| 4-chamber RV free wall thickness (mm) | Male | 0.64 (0.49–0.79) | 3.75mm | 60.4% | 68.0% | 64.2% | 64.4% | 64.2% |
| Female | 0.80 (0.66–0.93) | 3.60mm | ||||||
| Subcostal RV free wall thickness (mm) | Male | 0.67 (0.52–0.82) | 3.65mm | 65.3% | 76.0% | 70.7% | 72.7% | 69.1% |
| Female | 0.84 (0.73–0.95) | 3.65mm | ||||||
| Echo-quantified RV mass | ||||||||
| Echo-quantified RV mass (grams) | Male | 0.85 (0.74–0.95) | 31.9g | 75.5% | 74.0% | 74.7% | 74.0% | 75.5% |
| Female | 0.88 (0.78–0.97) | 25.3g | ||||||