Registration of 2D C-Arm and 3D CT Images for a C-Arm Image-Assisted Navigation System for Spinal Surgery

Table 1

Convergence results of different convergence interval.

Convergence intervals (mm, degree)	(5, 5)	(10, 10)	(10, 15)	(15, 10)
Displacement error (mm)	0.21 ± 0.03	0.22 ± 0.01	0.2 ± 0.01	0.19 ± 0.01
Mean convergence time (sec)	12.9 ± 2.1	16.18 ± 3.6	17 ± 4.6	18.2 ± 4.9
Success rate of convergence	100%	90%	75%	72.5%