|
Hydrodynamic resistance of the opened shunt depends on the preset performance level. |
||
| Performance level |
Shunt without Catheter |
Shunt with catheter (110 cm long, internal diameter 1.1 mm) |
|
|
||
| 30 mmH2O 2.3 mmHg |
1.58 (0.3) |
4.61 (.71) |
| 70 mmH2O 5.2 mmHg |
2.06 (0.41) |
5.12 (0.76) |
| 110 mmH2O 8.1 mmHg |
2.48 (0.52) |
5.62 (0.82) |
| 150 mmH2O 11.1 mmHg |
5.18 (0.81) |
8.21 (1.01) |
| 200 mmH2O 14.7 mmHg |
11.2 (1.31) |
14.2 (1.42) |
|
Units are mmHg/ml/min; mean values and standard deviation (in parentheses). Each test was repeated 3 times in 3 valves. | ||
Allin et al. Cerebrospinal Fluid Research 2008 5:8 doi:10.1186/1743-8454-5-8 |
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