Table 3: Comparison of residual values of each group.
| Vessels | Hypertensive residuals | Normotensive residuals | P |
| RCCA PSV | 4.996004e-016 | -1.433831e-016 | 1 |
| RCCA RI | 5.286776e-017 | 3.516121e-018 | 1 |
| RCCA PI | -2.168404e-017 | 1.095287e-017 | 1 |
| RCCA DIAMETER | -8.540177e-018 | -1.991431e-017 | 1 |
| RICA PSV | -3.006142e-016 | -6.078844e-016 | 1 |
| RICA RI | 2.238353e-018 | 3.422773e-018 | 1 |
| RICA PI | -3.469447e-018 | 2.178128e-019 | 1 |
| RICA DIAMETER | 1.521219e-018 | 4.560378e-016 | 1 |
| RVA PSV | 6.012285e-016 | 0 | 1 |
| RVA RI | 5.421011e-018 | -4.667417e-020 | 1 |
| RVA PI | -4.813858e-017 | 1.667824e-017 | 1 |
| RVA DIAMETER | 6.661338e-018 | -1.632974-016 | 1 |
| LCCA PSV | 9.868649e-016 | -4.460806e-016 | 1 |
| LCCA RI | 3.524518e-018 | -1.089064e-018 | 1 |
| LCCA PI | 4.229421e-017 | -1.493574e-018 | 1 |
| LCCA DIAMETER | 1.345725e-017 | 3.823548e-016 | 1 |
| LICA PSV | 2.018587e-016 | 6.372581e-017 | 1 |
| LICA RI | -1.195625e-017 | 2.582638e-018 | 1 |
| LICA PI | 1.009294e-017 | 3.982863e-018 | 1 |
| LICA DIAMETER | -4.794145e-017 | 2.668518e-016 | 1 |
| LVA PSV | -1.387779e-016 | -1.371443e-016 | 1 |
| LVA RI | 8.811294e-018 | -2.178128e-019 | 1 |
| LVA PI | 1.233581e-017 | 2.165682e-017 | 1 |
| LVA DIAMETER | -6.728624e-018 | 3.684148e-017 | 1 |
RCCA: right common Carotid Artery; LCCA: left common carotid artery; RICA: right internal carotid artery; LICA: left internal carotid artery;
RVA: right vertebral artery; LVA: left vertebral artery; PSV: peak systolic velocity; RI: resistance index; PI: pulsatility index.