Journal article

Mobile biplane X-Ray imaging system for measuring 3D dynamic joint motion during overground gait

S Guan, HA Gray, F Keynejad, MG Pandy

IEEE Transactions on Medical Imaging | Published : 2016

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 vi..

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