Table 2.
Summary of qualitative safety metrics for manual and CAP‐generated trajectories
| Manual trajectory (mean ± SD) | CAP trajectory (mean ± SD) | P value | |
|---|---|---|---|
| Length (mm) | 90 ± 12 | 82 ± 6 | .007a |
| Drilling angle (deg) | 31.1 ± 7.8 | 32.3 ± 8.5 | .47 |
| Proportion of trajectory within center of AHC | 0.50 ± 0.40 | 0.55 ± 0.20 | .66 |
| Overall risk | 2.02 ± 0.64 | 0.96 ± 0.20 | <.001a |
Comparison of safety metrics between manual and CAP‐planned trajectories revealed a significantly shorter intracranial length (P = .007) and reduced overall risk score (P < .001) with CAP trajectories. There was no significant difference between the drilling angle to the skull or the proportion of the trajectory within the center of the AHC.
a
Denotes statistical significance with P < .05.