Compartmental CSF volumes measured before lumbar puncture in patients
| Age (yr) | BMI | Opening Pressure (cm H2O) | EVC CSF Vol (mL) | Ventricular CSF Vol (mL) | SC CSF Vol (mL) | Total CSF Vol (mL) | Cord Vol (mL) | |
|---|---|---|---|---|---|---|---|---|
| Subject No. | ||||||||
| 1 | 28 | 34 | 39 | 164 | 18.9 | 86.7 | 269 | 20.8 |
| 2 | 37 | 33 | 45 | 169 | 15.6 | 83.1 | 268 | 23.5 |
| 3 | 19 | 26 | 17 | 157 | 16.4 | 76.8 | 250 | 21.9 |
| 4 | 33 | 27 | 29 | 171 | 11.6 | 77.3 | 260 | 20.7 |
| 5 | 28 | 43 | 34 | 213 | 12.8 | 67.6 | 293 | 19.9 |
| 6 | 32 | 40 | 34 | 166 | 28.9 | 89.8 | 285 | 23.9 |
| 7 | 30 | 41 | 25 | 176 | 15.8 | 68.9 | 261 | 18.8 |
| 8 | 22 | 30 | 40 | 98 | 9.2 | 69.9 | 177 | 18.6 |
| Mean | 29 ± 6 | 34 ± 6.7 | 33 ± 9.1 | 164 ± 31.8 | 16.2 ± 6.0 | 77.5 ± 8.4 | 258 ± 35.6 | 21.0 ± 2.0 |
| Variability (SD/Mean) | 19% | 37% | 11% | 14% | 10% |
Note:—BMI indicates body mass index; EVC, extraventricular cranial; SC, spinal canal; Vol, volume.