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. Author manuscript; available in PMC: 2015 Jul 15.
Published in final edited form as: IEEE Trans Med Imaging. 2012 May 16;31(10):1837–1848. doi: 10.1109/TMI.2012.2199763

Figure 2.

Figure 2

(a) CAD model of a pedicle screw. Two components of the polyaxial model are illustrated in red and blue. (b–d) Axial, sagittal, and coronal slices of the digital phantom used as a true representation of the anatomical background.