Drill Tracking Accuracy Results.

This table displays results for four separate tracking accuracy experiments on the cylinder and ball phantom in the operating room. Average target registration errors are given in millimeters for the “Pointer” and a drill with “3 mm”, “4 mm” or “5 mm” drill bits attached, for each experiment. Additionally, overall average and maximum target registration errors for each of the instruments are displayed in millimeters in the row “Average” and “Maximum” respectively. “SD” means standard deviation.