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Supine and Upright Flow Velocities by Gender
| Supine Flow Velocity (cm/s)
|
Upright Flow Velocity (cm/s)
|
|||
|---|---|---|---|---|
| Gender | Vmca | Vbas | Vmca | Vbas |
| Boys | 75 ± 16 | 51 ± 12 | 75 ± 17 | 50 ± 12 |
| Girls | 89 ± 16 | 59 ± 11 | 87 ± 17 | 60 ± 11 |
| Mean ± SD | 82 ± 17 | 55 ± 12 | 81 ± 18 | 55 ± 12 |
| boys vs. girls | p = 0.005 | boys vs. girls | p = 0.01 | |
Vmca = middle cerebral artery flow velocity; Vbas = Basilar artery flow velocity. Girls have higher Vmca and Vbas than boys in both the supine and upright positions.
