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Updated: Mar 1, 2026
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Diffusion Tensor Magnetic Resonance Imaging in Chronic Spinal Cord Compression
Published on: May 7, 2019
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Methodology for MR diffusion tensor imaging of the cat spinal cord
J Cohen-Adad1, H Benali, S Rossignol
1Groupe de Recherche sur le Système Nerveux Central, Department of Physiology, Faculty of Medicine, Université de Montréal (UdeM), Montreal, QC, Canada. julien.cohen-adad@imed.jussieu.fr
Summary
Researchers developed a new method for spinal cord diffusion tensor imaging (DTI) using magnetic resonance imaging. This technique overcomes challenges in imaging the spinal cord, enabling clearer visualization of axonal damage.
Area of Science:
- Neuroimaging
- Biomedical Engineering
- Radiology
Background:
- Spinal cord diffusion tensor imaging (DTI) is difficult due to the spinal cord's thinness and artifacts.
- Existing methods face challenges with resolution and image quality.
Purpose of the Study:
- To develop and validate a robust methodology for thoraco-lumbar spinal cord DTI at 3 Tesla.
- To assess the feasibility of applying this technique in clinical settings.
Main Methods:
- Utilized single-shot spin-echo echo planar imaging (ss-SE-EPI) on a clinical 3T scanner.
- Optimized slice orientation, phase encoding, and employed parallel imaging.
- Acquired diffusion-weighted data at 1.1 mm³ resolution in 13 minutes.
Main Results:
- Provided optimal parameters for slice orientation and phase encoding.
- Demonstrated the utility of parallel imaging in reducing geometric distortions.
- Successfully acquired high-quality diffusion data and performed tractography.
Conclusions:
- The developed ss-SE-EPI method is effective for spinal cord DTI, even with physiological and susceptibility artifacts.
- The technique shows potential for human application and can detect axonal disruption.
- This imaging approach offers improved resolution and reduced acquisition time for spinal cord studies.
