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The Accuracy of Measuring Lumbar Vertebral Displacements Using a Dynamic MRI Sequence

Goubeaux, Craig A.
http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1480436812645944

Abstract Details

2017, Master of Science (MS), Ohio University, Biomedical Engineering (Engineering and Technology).
Lower back pain causes the second most doctor visits each year with over $100 billion spent annually. Excess motion of vertebrae due to lumbar instability is considered a main etiology of this pain. This study determines ex vivo accuracy and repeatability of a novel technique for measuring vertebral displacements by selecting corner points of each vertebra, on images captured using an Esoate G-Scan MRI, capable of upright, weight-bearing, dynamic imaging. The study was performed by moving a porcine lumbar vertebrae relative to another with known translational and rotational displacements. The translational measurements show high accuracy compared to the actual displacements (RMS error = 0.77 mm) and relative to the regression (SEE = 0.61 mm). The rotational measurements have increased errors compared to the actual displacements (RMS error = 4.230) and relative to the regression (SEE = 1.97°). Both translational (average ICC(2,1) = 0.989) and rotational (average ICC(2,1) = 0.979) measurements show high degrees of repeatability. The technique developed may be used for future in vivo studies to further understand lumbar vertebral kinematics.
John Cotton, Dr. (Advisor)
Muhammad Ali, Dr. (Committee Member)
James Thomas, Dr. (Committee Member)
Brian Clark, Dr. (Committee Member)
90 p.
Biomedical Engineering; Biomedical Research; Engineering
Dynamic MRI; upright-MRI; measuring lumbar vertebral displacements; MRI; vertebral kinematics; vertebral displacements; translations and rotations of lumbar vertebrae; lumbar vertebrae; apparatus; Matlab

Recommended Citations

Citations

  • Goubeaux, C. A. (2017). The Accuracy of Measuring Lumbar Vertebral Displacements Using a Dynamic MRI Sequence [Master's thesis, Ohio University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1480436812645944

    APA Style (7th edition)

  • Goubeaux, Craig. The Accuracy of Measuring Lumbar Vertebral Displacements Using a Dynamic MRI Sequence. 2017. Ohio University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1480436812645944.

    MLA Style (8th edition)

  • Goubeaux, Craig. "The Accuracy of Measuring Lumbar Vertebral Displacements Using a Dynamic MRI Sequence." Master's thesis, Ohio University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1480436812645944

    Chicago Manual of Style (17th edition)

ohiou1480436812645944
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© 2017, all rights reserved.
This open access ETD is published by Ohio University and OhioLINK.