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
Sex
ALL
Min age
18 Years
Max age
—
Healthy volunteers
Accepted
Inclusion Criteria:
* Age \> 18 years
* Informed consent
* Willing to take part and follow requirements of the protocol
Patients additionally need to fulfil the following study-specific inclusion criteria:
Cross-sectional study:
* Chronic traumatic SCI (\> 12 months after injury) or
* Diagnosed degenerative spondylotic myelopathy (DCM)
Longitudinal study:
* Acute traumatic SCI (\< 2 months after injury) or
* Patients with neurogenic lower urinary tract dysfunction (NLUTD) who undergo routine tibial nerve stimulation (TNS) treatment as part of their rehabilitation (but independently of this study) at Balgrist University Hospital
Exclusion Criteria:
* 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)
* History of skull opening or head trauma
* Known or suspected non-adherence, drug or alcohol abuse
* Inability to follow the procedures of the study, e.g. due to language problems, psychological disorders, dementia, etc.
* Women who are pregnant (when uncertain, participants will undergo urine testing) or breastfeeding
* Intention to become pregnant during the course of the study
* Body mass index (BMI) \> 35
* Individuals especially in need of protection (according to Research with Human Subjects published by the Swiss Academy of Medical Sciences)
Primary outcome measure(s)
Cross-sectional study: lumbosacral functional fMRI — Baseline only 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 — Change from baseline at 2-month, 6-month, and 12-month 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 — Baseline only 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 — Change from baseline at 2-month, 6-month, and 12-month Activations in the cortical and subcortical areas of the brain as a response to sensory, motor, and somatosensory stimulations, or no stimulation (resting state)
This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.
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