Relative motions within normal and pathological joints of the human body can occur on the sub-millimeter and sub-degree scale. Dynamic radiography can be used to create a rapid sequence of images from which measurements of bone motion can be extracted, but available systems have limited speed and accuracy, limit normal subject movement, and do not easily integrate into existing traditional motion capture laboratories. A high-speed stereo radiography (HSSR) system is described that addresses these limitations. The custom radiography system was placed on a standalone reconfigurable gantry structure designed to allow freedom of subject movement while integrating into an existing motion capture laboratory. Validation of the system and measurement of knee kinematics of subjects during gait confirmed the ability to record joint motion with high accuracy and high-speed.
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December 2015
Research-Article
A Reconfigurable High-Speed Stereo-Radiography System for Sub-Millimeter Measurement of In Vivo Joint Kinematics
John C. Ivester,
John C. Ivester
Department of Mechanical
and Materials Engineering,
The University of Denver,
2390 S York Street,
Denver, CO 80208
e-mail: jiveste@gmail.com
and Materials Engineering,
The University of Denver,
2390 S York Street,
Denver, CO 80208
e-mail: jiveste@gmail.com
Search for other works by this author on:
Adam J. Cyr,
Adam J. Cyr
Department of Mechanical
and Materials Engineering,
The University of Denver,
2390 S York Street,
Denver, CO 80208
e-mail: adam.j.cyr@du.edu
and Materials Engineering,
The University of Denver,
2390 S York Street,
Denver, CO 80208
e-mail: adam.j.cyr@du.edu
Search for other works by this author on:
Michael D. Harris,
Michael D. Harris
Department of Mechanical
and Materials Engineering,
The University of Denver,
2390 S York Street,
Denver, CO 80208
e-mail: michael.d.harris@du.edu
and Materials Engineering,
The University of Denver,
2390 S York Street,
Denver, CO 80208
e-mail: michael.d.harris@du.edu
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Paul J. Rullkoetter,
Paul J. Rullkoetter
Mem. ASME
Department of Mechanical
and Materials Engineering,
The University of Denver,
2390 S York Street,
Denver, CO 80208
e-mail: paul.rullkoetter@du.edu
Department of Mechanical
and Materials Engineering,
The University of Denver,
2390 S York Street,
Denver, CO 80208
e-mail: paul.rullkoetter@du.edu
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Kevin B. Shelburne
Kevin B. Shelburne
Department of Mechanical
and Materials Engineering,
The University of Denver,
2390 S York Street,
Denver, CO 80208
e-mail: kevin.shelburne@du.edu
and Materials Engineering,
The University of Denver,
2390 S York Street,
Denver, CO 80208
e-mail: kevin.shelburne@du.edu
Search for other works by this author on:
John C. Ivester
Department of Mechanical
and Materials Engineering,
The University of Denver,
2390 S York Street,
Denver, CO 80208
e-mail: jiveste@gmail.com
and Materials Engineering,
The University of Denver,
2390 S York Street,
Denver, CO 80208
e-mail: jiveste@gmail.com
Adam J. Cyr
Department of Mechanical
and Materials Engineering,
The University of Denver,
2390 S York Street,
Denver, CO 80208
e-mail: adam.j.cyr@du.edu
and Materials Engineering,
The University of Denver,
2390 S York Street,
Denver, CO 80208
e-mail: adam.j.cyr@du.edu
Michael D. Harris
Department of Mechanical
and Materials Engineering,
The University of Denver,
2390 S York Street,
Denver, CO 80208
e-mail: michael.d.harris@du.edu
and Materials Engineering,
The University of Denver,
2390 S York Street,
Denver, CO 80208
e-mail: michael.d.harris@du.edu
Martin J. Kulis
Paul J. Rullkoetter
Mem. ASME
Department of Mechanical
and Materials Engineering,
The University of Denver,
2390 S York Street,
Denver, CO 80208
e-mail: paul.rullkoetter@du.edu
Department of Mechanical
and Materials Engineering,
The University of Denver,
2390 S York Street,
Denver, CO 80208
e-mail: paul.rullkoetter@du.edu
Kevin B. Shelburne
Department of Mechanical
and Materials Engineering,
The University of Denver,
2390 S York Street,
Denver, CO 80208
e-mail: kevin.shelburne@du.edu
and Materials Engineering,
The University of Denver,
2390 S York Street,
Denver, CO 80208
e-mail: kevin.shelburne@du.edu
1Corresponding author.
Manuscript received January 5, 2015; final manuscript received May 22, 2015; published online August 6, 2015. Assoc. Editor: Rita M. Patterson.
J. Med. Devices. Dec 2015, 9(4): 041009 (7 pages)
Published Online: August 6, 2015
Article history
Received:
January 5, 2015
Revision Received:
May 22, 2015
Citation
Ivester, J. C., Cyr, A. J., Harris, M. D., Kulis, M. J., Rullkoetter, P. J., and Shelburne, K. B. (August 6, 2015). "A Reconfigurable High-Speed Stereo-Radiography System for Sub-Millimeter Measurement of In Vivo Joint Kinematics." ASME. J. Med. Devices. December 2015; 9(4): 041009. https://doi.org/10.1115/1.4030778
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