[1] Univ Virginia, Dept Biomed Engn, Hlth Syst, POB 800759, Charlottesville, VA 22908 USA
[2] Univ Virginia, Dept Radiol & Med Imaging, Charlottesville, VA USA
[3] Univ Virginia, Dept Orthopaed Surg, Charlottesville, VA 22908 USA
[4] Univ Virginia, Dept Mech & Aerosp Engn, Charlottesville, VA USA