  The proposed work establishes a novel Graphical User Interface (GUI)
framework, primarily designed for intraoperative pedicle screw planning.
Current planning workflow in Image Guided Surgeries primarily relies on
pre-operative CT planning. Intraoperative CT planning can be time-consuming and
expensive and thus is not a common practice. In situations where efficiency and
cost-effectiveness are paramount, planning to utilize fluoroscopic images
acquired for image registration emerges as the optimal choice. The methodology
proposed in this study employs a simulated 3D pedicle screw to calculate its
coronal and sagittal projections for pedicle screw planning using
anterior-posterior (AP) and lateral (LP) images. The initialization and
placement of pedicle screw is computed by utilizing the bounding box of
vertebral segmentation, which is obtained by the application of enhanced
YOLOv5. The GUI front end includes functionality that allows surgeons or
medical practitioners to efficiently choose, set up, and dynamically maneuver
the pedicle screw on AP and LP images. This is based on a novel feature called
synchronous planning, which involves correlating pedicle screws from the
coronal and sagittal planes. This correlation utilizes projective
correspondence to ensure that any movement of the pedicle screw in either the
AP or LP image will be reflected in the other image. The proposed GUI framework
is a time-efficient and cost-effective tool for synchronizing and planning the
movement of pedicle screws during intraoperative surgical procedures.
