Table 3 Relevant individual features of adjustable valves
Valve | CHPV | Strata Medtronic | Sophysa Polaris | Miethke Pro-GAV | Certas |
|---|---|---|---|---|---|
MRI-safe | Yes | Yes | Yes | Yes | Yes |
Unintentional adjustments during MRI | Yes | Yes | No | No | No |
Pressure range (mm H2O) | 30-200 | 15-135 | 30-200 | 0-200 | 36-400 |
Number of settings | 18 | 5 | 5* | 20 | 8 |
”Virtual off” function | No | No | No | No | Yes |