About this trial
Building on recent improvements, state-of-the-art functional MRI will be applied as an advanced diagnostic tool for the lumbosacral cord in spinal cord injury (SCI) patients to characterize the remaining neuronal activity of the motor and sensory neurons. Alterations in the activity pattern will reveal the effect upon task-related spinal cord activity of the lower motor neurons and sensory neurons undergoing trauma-induced neurodegeneration, at a spatial specificity that has not been possible so far. Results of this study will be of crucial importance because SCI patients can only profit from regeneration-inducing therapies if spinal neuronal function is preserved below the level of lesion.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Age > 18 years
Informed consent
Willing to take part and follow requirements of the protocol
Chronic traumatic SCI (> 12 months after injury) or
Disqualifiers
Age < 18 years
Contraindications for MRI (presence of pacemaker or other type of stimulator in the body, presence of metallic foreign body in or on the body, etc.); we will comply with the imaging center's (SCMI) guidelines and in case of doubt we will exclude the participant from the study
No informed consent
History of psychiatric or neurological disease, apart from those induced by SCI (e.g.epilepsy)
Trial population
The participants will be recruited from the primary care clinic as well as via flyers distributed at hospital waiting rooms and patient support organisations. Healthy controls will be recruited via public announcements and via flyers distributed at the primary care clinic and two universities.
Trial design
Cohort
Prospective
Treatments tested in this trial
Not listed
Trial groups
6
Trial groupsSee each trial group below.
Trial outcomes
Primary outcomes
Cross-sectional study: lumbosacral functional fMRI
Activations in the gray matter of the lumbosacral cord, as a response to sensory, motor, and somatosensory stimulations, or no stimulation (resting state). Spatiotemporal components of the BOLD signal as well as the couplings and anti-couplings between these components
Longitudinal study: lumbosacral functional fMRI
Activations in the gray matter of the lumbosacral cord, as a response to sensory, motor, and somatosensory stimulations, or no stimulation (resting state). Spatiotemporal components of the BOLD signal as well as the couplings and anti-couplings between these component
Cross-sectional study: brain functional MRI
Activations in the cortical and subcortical areas of the brain as a response to sensory, motor, and somatosensory stimulations, or no stimulation (resting state)
Longitudinal study: brain functional MRI
Activations in the cortical and subcortical areas of the brain as a response to sensory, motor, and somatosensory stimulations, or no stimulation (resting state)
Secondary outcomes
Cross-sectional study: diffusion MRI in the spinal cord
Directional diffusivities in the spinal cord (units of mm2/s)
Cross-sectional study: diffusion MRI in the spinal cord
Fractional anisotropy in the spinal cord (unitless)
Longitudinal study: diffusion MRI in the spinal cord
Directional diffusivities in the spinal cord, measured (units of mm2/s)
Longitudinal study: diffusion MRI in the spinal cord
Fractional anisotropy in the spinal cord (unitless)
Sponsors and contacts
Click on the lead sponsor to view all of their trials.
University of Zurich
Lead sponsor
Swiss National Science Foundation
Collaborator
Swiss Paraplegic Research, Nottwil
Collaborator