Comparison of flow parameters between nonhemorrhage and hemorrhage groups
| Parametersa | Nonhemorrhage (n = 24) | Hemorrhage (n = 8) | P Value |
|---|---|---|---|
| Mean apparent AVM inflow (median) (range) (mL/min) | 422, 431 (30–965) | 499, 386 (18–1347) | .95 |
| Mean apparent AVM outflow (median) (range) (mL/min) | 377, 317 (19–918) | 354, 144 (11–990) | .40 |
| Mean AVM inflow index (median) (range) | 87, 76 (33–161) | 128, 108 ( 62–251) | .09 |
| Mean AVM outflow index (median) (range) | 77, 82 (29–126) | 70, 58 (36–135) | .47 |
| Mean apparent AVM inflow-to-outflow ratio (median) (range) | 1.17, 1.17 (0.57–1.86) | 2.00, 1.69 (1.08–3.68) | .02 |
↵a Data are calculated by the Wilcoxon rank sum test.