Table 2.
Associations between CMR- and pressure-assessed PWV.
| regional | local | |||
|---|---|---|---|---|
| PWVt.p. vs. PWVpressure | p-value comparison↔ | PWVi.p. vs. PWVpressure | PWVi.p. vs. PWVpressure | |
| Pearson r | 0.26 (p = 0.31) | 0.02 | 0.69 (p = 0.002) | 0.91 (p < 0.001) |
| COV | 27% | 24% | 19% | |
| Mean unsigned error | 26% ± 13% | 18% ± 12% | 15% ± 8% | |
| Mean difference (m/s) | -1.3 ± 1.7 | -0.2 ± 1.6 | 0.2 ± 1.3 | |
| p-value t-test | 0.006 | 0.61 | 0.56 | |
| 95%-CI (m/s) | -2.1 - 0.5 | -1.0 - 0.6 | -0.4 - 0.8 | |
PWVt.p.: Pulse wave velocity from through-plane velocity-encoded CMR; PWVi.p.: PWV from in-plane velocity-encoded CMR; PWVpressure: PWV from invasive pressure measurements; COV: coefficient of variation; 95%-CI: 95%-confidence interval.