Table 3.
The maximum CSF pressure details and volumes of head substructures of the 11 patients.
| Hydrocephalus patients | No. 1 | No. 2 | No. 3 | No. 4 | No. 5 | No. 6 | No. 7 | No. 8 | No. 9 | No. 10 | No. 11 | Mean | Standard deviation | Standard error | Coefficient of variation (%) | 95% Confidence interval | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Variables | Lower | Upper | |||||||||||||||
| Maximum CSF pressure in SAS under BC “A” (Pa) | 3730.1 | 3810.5 | 3730.4 | 3994.6 | 3720.2 | 3892.3 | 3540.0 | 3030.7 | 3066.4 | 3170.2 | 3830.3 | 3592.3 | 344.0 | 103.7 | 9.6 | 3361.2 | 3823.4 |
| Maximum CSF pressure in SAS under BC “B” (Pa) | 3145.2 | 3095.3 | 2920.7 | 3189.6 | 2976.5 | 2815.1 | 2898.0 | 2691.2 | 2716.5 | 2943.4 | 3717.7 | 3009.9 | 284.7 | 85.8 | 9.5 | 2818.7 | 3201.2 |
| Maximum CSF pressure in SAS under BC “C” (Pa) | 2559.0 | 2635.0 | 2416.0 | 2659.0 | 2415.0 | 2495.0 | 2400.0 | 2390.0 | 2405.0 | 2670.0 | 2637.0 | 2516.5 | 117.1 | 35.3 | 4.7 | 2437.8 | 2595.1 |
| Experimental value of CSF pressure in SAS (Pa) | 2705.0 | 2795.0 | 2562.0 | 2798.0 | 2543.0 | 2641.0 | 2494.0 | 2524.0 | 2555.0 | 2768.0 | — | 2638.5 | 118.8 | 37.6 | 4.5 | 2638.5 | 2638.5 |
| Maximum CSF pressure in CA under BC “A” (Pa) | 3700.2 | 3803.1 | 3718.9 | 3992.2 | 3713.4 | 3805.3 | 3532.0 | 2992.2 | 3054.1 | 3121.1 | 3825.2 | 3568.9 | 348.7 | 105.1 | 9.8 | 3334.6 | 3803.1 |
| Maximum CSF pressure in CA under BC “B” (Pa) | 3100.3 | 3050.2 | 2818.7 | 3147.6 | 2988.6 | 2830.5 | 2890.0 | 2682.3 | 2670.5 | 2942.4 | 3712.1 | 2984.8 | 287.3 | 86.6 | 9.6 | 2791.8 | 3177.9 |
| Maximum CSF pressure in CA under BC “C” (Pa) | 2538.1 | 2619.5 | 2408.2 | 2645.7 | 2406.5 | 2477.3 | 2386.0 | 2381.2 | 2390.7 | 2650.1 | 2635.3 | 2503.5 | 115.9 | 35.0 | 4.6 | 2425.6 | 2581.4 |
| Volume of ventricular system (ml) | 287.1 | 286.6 | 286.3 | 301.5 | 278.7 | 270.1 | 273.0 | 268.2 | 270.3 | 298.8 | 277.1 | 281.6 | 11.5 | 3.5 | 4.1 | 273.9 | 289.3 |
| Volume of brain tissue (ml) | 1108.2 | 1108.6 | 1092.7 | 1130.6 | 1096.1 | 1018.3 | 1010.0 | 1009.2 | 1009.5 | 1109.1 | 1096.2 | 1071.7 | 48.6 | 14.7 | 4.5 | 1039.0 | 1104.3 |
| Volume of SAS (ml) | 110.1 | 114.0 | 108.1 | 113.1 | 109.3 | 106.7 | 103.5 | 102.0 | 101.0 | 114.8 | 109.8 | 108.4 | 4.7 | 1.4 | 4.4 | 105.2 | 111.6 |
CA cerebral aqueduct, BC boundary condition, CSF cerebrospinal fluid, CA cerebral aqueduct, SAS subarachnoid space.