Biodynamic Stereo-Radiography

William Anderst, PhD Assistant Professor, Department of Orthopaedic Surgery, University of Pittsburgh
Director, Biodynamics Laboratory

The goal of this project is to create a fully automated system for registering High-Speed Dynamic Stereo-Radiography (DSX) images of multiple bony structures with pre-acquired Computated Tomography (CT), yielding the geometry of the bony structures as they move relative to each other. We hypothesize that a single CT image and a sequence of DSX images contains enough information to find the optimal solution in terms of the identification and localization of the rigid bony structures within, given the angles and distances between the two calibrated X-ray scanners. Prior manual segmentation of these structures should not be required. By using the raw unsegmented data, we avoid human error and preserve flexibility in terms of the methods available to find the solution.