Surgical targeting of the incorrect vertebral level (wrong-level surgery) is among the more
common wrong-site surgical errors, attributed primarily to the lack of uniquely identifiable …

Study Design. A 3-dimensional-2-dimensional (3D-2D) image registration
algorithm,“LevelCheck,” was used to automatically label vertebrae in intraoperative mobile …

In order to use pre-operative images during an operation for navigation, they must be
registered to the patient's coordinate system in the operating theater or to an intra-operative …

This thesis contributes to knowledge by describing a new method to allow information from a
preoperative 3D modality to be used during an intervention which is guided using 2D …

An algorithm for intensity-based 3D–2D registration of CT and x-ray projections is evaluated,
specifically using single-or dual-projection views to provide 3D localization. The registration …

Spine surgeries are vulnerable to wrong-level surgeries and postoperative complications
because of their complex structure. Unavailability of the 3D intraoperative imaging device …

Intraoperative x-ray radiography/fluoroscopy is commonly used to assess the placement of
surgical devices in the operating room (eg spine pedicle screws), but qualitative …

Decision support to assist in target vertebra localization could provide a useful aid to safe
and effective spine surgery. Previous solutions have shown 3D–2D registration of …

We present a framework for robustly estimating registration between a 3D volume image
and a 2D projection image and evaluate its precision and robustness in spine interventions …

Study Design The timing of vertebral registration using isocentric fluoroscopy was recorded
in 20 consecutive patients undergoing image-guided spinal surgery. Objective To determine …