Automatic quantification of lumbar vertebral kinematics from dynamic fluoroscopic sequences

Jon Camp, Kristin D Zhao, Etienne Morel, Dan White, Dixon Magnuson, Ralph Gay, Kai Nan An, Richard Robb

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We hypothesize that the vertebra-to-vertebra patterns of spinal flexion and extension motion of persons with lower back pain will differ from those of persons who are pain-free. Thus, it is our goal to measure the motion of individual lumbar vertebrae noninvasively from dynamic fluoroscopic sequences. Two-dimensional normalized mutual information-based image registration was used to track frame-to-frame motion. Software was developed that required the operator to identify each vertebra on the first frame of the sequence using a four-point "caliper" placed at the posterior and anterior edges of the inferior and superior end plates of the target vertebrae. The program then resolved the individual motions of each vertebra independently throughout the entire sequence. To validate the technique, 6 cadaveric lumbar spine specimens were potted in polymethylmethacrylate and instrumented with optoelectric sensors. The specimens were then placed in a custom dynamic spine simulator and moved through flexion-extension cycles while kinematic data and fluoroscopic sequences were simultaneously acquired. We found strong correlation between the absolute flexionextension range of motion of each vertebra as recorded by the optoelectric system and as determined from the fluoroscopic sequence via registration. We conclude that this method is a viable way of noninvasively assessing twodimensional vertebral motion.

Original languageEnglish (US)
Title of host publicationProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume7260
DOIs
StatePublished - 2009
EventMedical Imaging 2009: Computer-Aided Diagnosis - Lake Buena Vista, FL, United States
Duration: Feb 10 2009Feb 12 2009

Other

OtherMedical Imaging 2009: Computer-Aided Diagnosis
CountryUnited States
CityLake Buena Vista, FL
Period2/10/092/12/09

Fingerprint

vertebrae
Biomechanical Phenomena
Kinematics
Spine
kinematics
Image registration
Polymethyl Methacrylate
Simulators
spine
pain
Sensors
end plates
Lumbar Vertebrae
simulators
Articular Range of Motion
Low Back Pain
Software
computer programs
operators
cycles

Keywords

  • Back pain
  • Fluoroscopy
  • Kinematics
  • Registration

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Radiology Nuclear Medicine and imaging

Cite this

Camp, J., Zhao, K. D., Morel, E., White, D., Magnuson, D., Gay, R., ... Robb, R. (2009). Automatic quantification of lumbar vertebral kinematics from dynamic fluoroscopic sequences. In Progress in Biomedical Optics and Imaging - Proceedings of SPIE (Vol. 7260). [72603M] https://doi.org/10.1117/12.811405

Automatic quantification of lumbar vertebral kinematics from dynamic fluoroscopic sequences. / Camp, Jon; Zhao, Kristin D; Morel, Etienne; White, Dan; Magnuson, Dixon; Gay, Ralph; An, Kai Nan; Robb, Richard.

Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 7260 2009. 72603M.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Camp, J, Zhao, KD, Morel, E, White, D, Magnuson, D, Gay, R, An, KN & Robb, R 2009, Automatic quantification of lumbar vertebral kinematics from dynamic fluoroscopic sequences. in Progress in Biomedical Optics and Imaging - Proceedings of SPIE. vol. 7260, 72603M, Medical Imaging 2009: Computer-Aided Diagnosis, Lake Buena Vista, FL, United States, 2/10/09. https://doi.org/10.1117/12.811405
Camp J, Zhao KD, Morel E, White D, Magnuson D, Gay R et al. Automatic quantification of lumbar vertebral kinematics from dynamic fluoroscopic sequences. In Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 7260. 2009. 72603M https://doi.org/10.1117/12.811405
Camp, Jon ; Zhao, Kristin D ; Morel, Etienne ; White, Dan ; Magnuson, Dixon ; Gay, Ralph ; An, Kai Nan ; Robb, Richard. / Automatic quantification of lumbar vertebral kinematics from dynamic fluoroscopic sequences. Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 7260 2009.
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