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. Author manuscript; available in PMC: 2018 Apr 21.
Published in final edited form as: Phys Med Biol. 2017 Feb 24;62(8):3330–3351. doi: 10.1088/1361-6560/aa62c5

Figure 10.

Figure 10

Quality assurance of pedicle screw placement using KC-Reg. The top row shows axial pre-op CT slices annotated with registered 3D screw parameters (obtained from 3 radiographic views) and estimated screw sizes. Preoperatively obtained vertebral cortex boundaries are used to conspicuously highlight the breaches in red, including the medial breach in L3 and the lateral breach in L2. The bottom row shows corresponding post-op axial slices, confirming the breaches predicted by KC-Reg in the top row and confirming the actual screw sizes.