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Error definitions and frequency in our study population
| Error criteria | Measurement errors n, (mean, 95%CI) | |
|---|---|---|
| LVOT diameter (mm) | │Δ│ > 2 mm | 130 (4.6%, [3.8%, 5.3%]) |
| LVOT VTI (cm) | │Δ│ > 15% | 628 (22.0%, [20.4%, 23.5%]) |
| AV Vmax (m/s) | Δ < − 15% | 92 (3.2%, [2.6%, 3.9%]) |
| AV VTI (cm) | Δ < − 15% | 182 (6.4%, [5.5%, 7.3%]) |
| AV ΔP (mmHg) | Δ < − 15% | 156 (5.5%, [4.6%, 6.3%]) |
LVOT left ventricular outflow tract, VTI velocity time integral, AV aortic valve, Vmax maximum velocity, ΔP mean pressure gradient
