Table 2.
Common carotid artery and common femoral artery structure, stiffness, and flow before and after HDTBR in 10 healthy volunteers.
| CCA | P | CFA | P | |||
|---|---|---|---|---|---|---|
| Before | After | Before | After | |||
| IMT (μm) | 503 ± 48 | 520 ± 36 | 0.27 | 515 ± 79 | 523 ± 57 | 0.58 |
| Diameter minimum (mm) | 5.1 ± 0.3 | 5.0 ± 0.3 | 0.12 | 7.4 ± 0.9 | 6.7 ± 1.0 | <0.01 |
| Diameter maximum (mm) | 5.9 ± 0.3 | 5.8 ± 0.3 | 0.09 | 8.1 ± 1.0 | 7.4 ± 1.0 | <0.01 |
| Δ diameter (mm) | 0.80 ± 0.13 | 0.78 ± 0.11 | 0.71 | 0.74 ± 0.22 | 0.72 ± 0.23 | 0.72 |
| End-diastolic IMT/radius | 0.18 ± 0.02 | 0.19 ± 0.02 | 0.14 | 0.14 ± 0.03 | 0.16 ± 0.02 | <0.01 |
| End-diastolic wall stress (kPa) | 42.4 ± 5.9 | 41.5 ± 5.6 | 0.70 | 60.7 ± 10.9 | 54.9 ± 7.9 | 0.05 |
| Beta index | 3.2 ± 0.7 | 2.9 ± 0.7 | 0.29 | 6.5 ± 1.9 | 5.6 ± 2.1 | 0.20 |
| Peak velocity systolic (cm/s) | 124 ± 25 | 125 ± 22 | 0.83 | 89 ± 15 | 116 ± 35 | 0.09 |
| Peak velocity diastolic (cm/s) | 25 ± 5 | 26 ± 6 | 0.66 | 6 ± 3 | 10 ± 5 | <0.05 |
| Resistive index | 0.79 ± 0.04 | 0.79 ± 0.04 | 0.88 | 0.94 ± 0.02 | 0.91 ± 0.02 | 0.05 |
| Mean flow per beat (mL) | 9.3 ± 1.6 | 8.6 ± 1.3 | 0.42 | 9.4 ± 2.1 | 9.3 ± 2.4 | 0.90 |
| Systolic flow per beat (mL) | 4.9 ± 0.9 | 5.0 ± 0.6 | 0.74 | 7.8 ± 2.1 | 7.1 ± 2.3 | 0.37 |
| Diastolic flow per beat (mL) | 3.4 ± 0.7 | 2.9 ± 0.6 | 0.08 | 1.5 ± 0.5 | 1.9 ± 0.7 | 0.05 |
| Ratio syst/diast flow per beat | 1.5 ± 0.5 | 1.7 ± 0.4 | 0.07 | 5.8 ± 2.0 | 3.9 ± 0.6 | 0.01 |
| WSR peak near wall (s−1) | 524 ± 80 | 575 ± 120 | 0.29 | 569 ± 177 | 557 ± 197 | 0.89 |
| WSR peak far wall (s−1) | 460 ± 107 | 494 ± 95 | 0.49 | 357 ± 52 | 326 ± 69 | 0.34 |
IMT: intima-media thickness; WSR: wall shear rate.