Mobile Biplane X-Ray Imaging System for Measuring 3D Dynamic Joint Motion During Overground Gait

IEEE Transactions on Medical Imaging
Shanyuanye GuanMarcus G Pandy

Abstract

Most X-ray fluoroscopy systems are stationary and impose restrictions on the measurement of dynamic joint motion; for example, knee-joint kinematics during gait is usually measured with the subject ambulating on a treadmill. We developed a computer-controlled, mobile, biplane, X-ray fluoroscopy system to track human body movement for high-speed imaging of 3D joint motion during overground gait. A robotic gantry mechanism translates the two X-ray units alongside the subject, tracking and imaging the joint of interest as the subject moves. The main aim of the present study was to determine the accuracy with which the mobile imaging system measures 3D knee-joint kinematics during walking. In vitro experiments were performed to measure the relative positions of the tibia and femur in an intact human cadaver knee and of the tibial and femoral components of a total knee arthroplasty (TKA) implant during simulated overground gait. Accuracy was determined by calculating mean, standard deviation and root-mean-squared errors from differences between kinematic measurements obtained using volumetric models of the bones and TKA components and reference measurements obtained from metal beads embedded in the bones. Measurement accuracy was en...Continue Reading

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Citations

Nov 5, 2016·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Shanyuanye GuanMarcus G Pandy
Sep 14, 2017·Annals of Biomedical Engineering·Adrian K M LaiJames M Wakeling
Jul 14, 2018·PloS One·Marina HitzRenate List
Sep 6, 2017·NMR in Biomedicine·Valentina MazzoliAart J Nederveen
Jul 2, 2016·Journal of Biomechanical Engineering·Ricardo Manuel Millán VaqueroFranz-Erich Wolter
Jan 27, 2019·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Hans A GrayMarcus G Pandy
Mar 31, 2019·Journal of Biomechanical Engineering·Ahmet ErdemirKevin B Shelburne
Jul 16, 2019·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Pascal SchützRenate List
Jan 30, 2020·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Hans A GrayMarcus G Pandy
Apr 9, 2019·Journal of the Royal Society, Interface·Pascal SchützRenate List
Oct 8, 2020·Annals of Biomedical Engineering·Qiang ZhangColin R Smith
Oct 24, 2020·Annals of Biomedical Engineering·Lucas ThomeerMarcus Pandy
Jun 6, 2019·Journal of Biomechanical Engineering·Ahmet ErdemirKevin B Shelburne
Aug 23, 2020·Journal of Biomechanics·Barbara PostolkaWilliam R Taylor
Jun 2, 2021·Journal of Biomechanics·Hans A GrayMarcus G Pandy
Dec 9, 2021·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Lucas T ThomeerMarcus G Pandy

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