Table 1.

Discrepancies in position detection between ExacTrac and CBCT (N = 42)

	mean ± SD	median	range	95% (abs.)
lateral	+0.1 ± 0.3	+0.1	–0.9 to +0.8	<0.8
longitudinal	–0.5 ± 0.4	–0.4	–1.6 to +0.2	<1.2
vertical	–0.3 ± 0.5	–0.4	–1.4 to +0.8	<1.0
radial	0.8 ± 0.3	0.8	0.3 to 1.8	<1.4

CBCT Cone Beam Computed Tomography

All units are in mm