Directionality: Misregistrations with Significant Difference Between Positive and Negative 3-Pixel Shifts (by Student t test)
| Misregistration direction | Region | ||||
|---|---|---|---|---|---|
| Anterior | Apex | Inferior | Septum | Lateral | |
| Cephalad/caudal (z-axis) | P < 0. 001 | P < 0.001 | P < 0.025 | NS | NS |
| Dorsal/ventral (y-axis) | NS | P < 0.001 | P < 0.002 | P < 0.001 | P < 0.001 |
| Left/right (x-axis) | NS | NS | P < 0.001 | P < 0.001 | P < 0.004 |
NS = no significant difference between positive and negative shifts (P > 0.05).