Table 2 List of trajectory measurements with explanation
From: The foramen ovale: a keyhole to the brain? Computer simulations of percutaneous FO punctures
Trajectory | |
|---|---|
Measurement | Description |
Length of trajectory | Distance between the entry point and target structure |
Length of intracranial course | Distance between FO and the target structure |
Height/sagittal angle | Angle between entry point, FO and the orbital floor (Hartel)/Point vertical to the FO next to the Entry point (SM) |
Horizontal/coronal angle | Angle between Entry point, FO and inferior orbital ridge (Hartel)/Point vertical to the FO next to the Entry point (SM) |
Entry point | In reference to a point at the center of the mouth, which was set at the intersection between the external surface of the lips and a sagittal plane through the dorsum sellae. (Hartel). In reference to a point which was set in the mandibular angle. (SM) |