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Correlation using Pearson's correlation coefficient (r) between renal artery impedance indices and volumetric impedance indices. All indices were log transformed
| Indices Compared | r | |
|---|---|---|
| 2D vs. 4D VFI (n = 22) | PI vs. vPI‐VFI | 0.40 |
| RI vs. vRI‐VFI | 0.50 | |
| S/D vs. vS/D‐VFI | 0.16 | |
| 2D vs. 4D FMBV (n = 20) | PI vs. vPI‐FMBV | <0.01 |
| RI vs. vRI‐FMBV | 0.20 | |
| S/D vs. vS/D‐FMBV | 0.01 |
