Figure 4

Mean and standard deviations of per path mean surface distances (MSD). Skin tissue depth lags are best. A depth lag of 2 mm (dashed green line) is considered a low just noticeable spatial error for salient needle force events to occur.

Mean and standard deviations of per path mean surface distances (MSD). Skin tissue depth lags are best. A depth lag of 2 mm (dashed green line) is considered a low just noticeable spatial error for salient needle force events to occur.