Blood flow
| Age (y) | Cerebral Inflow (mL/min) | SSS Outflow (mL/min) | ST Outflow (mL/min) | SSS Outflow as a % of Inflow (%) | ST Outflow as a % of Inflow (%) | |
|---|---|---|---|---|---|---|
| Healthy elderly, n = 12 (SD) | 70 (5) | 710 (110) | 310 (65) | 90 (30) | 44 (9) | 13 (4) |
| NPH, n = 20 (SD) | 71 (11) | 800 (90) | 280 (70) | 100 (20) | 35 (10) | 12 (3) |
| P value | .34 | .02* | .41 | .52 | .04* | .62 |
Note:—SSS, indicates superior sagittal sinus; ST, straight sinus.
* ttest P value < .05.