Figure 3.

Translational offset detection. Offsets reported by the standard and enhanced spine tracking system (y‐axis) are shown vs. the nominal phantom position (x‐axis) for all three directions – anterior/posterior (A/P), left/right (L/R) and superior/inferior (S/I). Results are means of 10 measurements. Standard deviations (σ $\le \hspace{0.17em}0.1\hspace{0.17em}\text{mm}$) are omitted for better readability.