Mean and standard deviation of the four imaging variables, classified into improvement per symptom
| Not Improved | Improved | |
|---|---|---|
| Gait | n = 4 | n = 19 |
| Ventricular volume ratio | 0.11 (±0.01) | 0.11 (±0.03) |
| Brain volume ratio | 0.76 (±0.02) | 0.77 (±0.03) |
| Pericerebral CSF volume ratio | 0.13 (±0.02) | 0.13 (±0.02) |
| Ratio between ventricular and pericerebral CSF volume | 0.85 (±0.14) | 0.85 (±0.28) |
| Cognition | n = 10 | n = 9 |
| Ventricular volume ratio | 0.10 (±0.03) | 0.11 (±0.02) |
| Brain volume ratio | 0.77 (±0.03) | 0.76 (±0.02) |
| Pericerebral CSF volume ratio | 0.13 (±0.02) | 0.12 (±0.02) |
| Ratio between ventricular and pericerebral CSF volume | 0.81 (±0.28) | 0.96 (±0.22) |
| Bladder function | n = 4 | n = 19 |
| Ventricular volume ratio | 0.11 (±0.03) | 0.10 (±0.02) |
| Brain volume ratio | 0.76 (±0.03) | 0.78 (±0.02) |
| Pericerebral CSF volume ratio | 0.13 (±0.02) | 0.12 (±0.01) |
| Ratio between ventricular and pericerebral CSF volume | 0.84 (±0.29) | 0.91 (±0.25) |
Note:—Ventricular volume, brain volume, and pericerebral CSF volume were converted into ratios from total intracranial volume to normalize for head size.