Results of carotid duplex sonography at baseline and after follow-up in patients with dural AVF
| Group | Baseline | Follow-Up | P Value |
|---|---|---|---|
| Deteriorating (n = 6) | |||
| RI | 0.69 ± 0.11 | 0.53 ± 0.15 | .04 |
| EDV (cm/s) | 23 ± 13 | 51 ± 27 | .02 |
| PSV (cm/s) | 58 ± 19 | 108 ± 37 | .01 |
| Flow (mL/min) | 243 ± 98 | 549 ± 255 | .02 |
| Stationary (n = 7) | |||
| RI | 0.71 ± 0.14 | 0.72 ± 0.12 | 63 |
| EDV (cm/s) | 31 ± 24 | 30 ± 21 | .85 |
| PSV (cm/s) | 96 ± 35 | 101 ± 46 | .77 |
| Flow (mL/min) | 218 ± 136 | 192 ± 138 | .7 |
| Improving (n = 3) | |||
| RI | 0.65 ± 0.11 | 0.77 ± 0.11 | .009 |
| EDV (cm/s) | 32 ± 25 | 16 ± 4 | .3 |
| PSV (cm/s) | 87 ± 47 | 84 ± 35 | .93 |
| Flow (mL/min) | 383 ± 301 | 147 ± 100 | .18 |