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Diffusion Tensor Magnetic Resonance Imaging in Chronic Spinal Cord Compression
Published on: May 7, 2019
Brain reorganization in patients with spinal cord compression evaluated using fMRI
1Division of Neurosurgery, University of Western Ontario, London, Ontario, Canada, N6A 5A5. neil.duggal@lhsc.on.ca
Neurology
|March 5, 2010
Summary
Cervical spinal stenosis alters brain activity in sensorimotor areas. Surgical decompression reverses these changes, showing significant cortical reorganization and improved patient outcomes.
Area of Science:
- Neuroscience
- Neurosurgery
- Radiology
Background:
- Cervical spinal stenosis can lead to cervical myelopathy, affecting sensorimotor function.
- Understanding the brain's cortical reorganization after decompression is crucial for treatment efficacy.
Purpose of the Study:
- To characterize sensorimotor cortex reorganization following surgical decompression in patients with cervical spinal stenosis.
- To compare fMRI activation patterns in patients versus controls before and after surgery.
Main Methods:
- Prospective study involving 12 patients with cervical myelopathy and 10 controls.
- Blood oxygenation level dependent functional MRI (fMRI) using a finger-tapping paradigm.
- Analysis of volume of activation (VOA) in the precentral gyrus (PrCG) and postcentral gyrus (PoCG).
Main Results:
- Pre-surgery, patients showed increased VOA in PrCG and decreased VOA in PoCG compared to controls.
- Post-surgery, VOA in both PrCG and PoCG increased, approaching control levels.
- Significant clinical outcome improvements were observed after surgical decompression.
Conclusions:
- Cervical spinal compression causes distinct alterations in sensorimotor cortex activation.
- Surgical decompression promotes significant cortical reorganization, with enlarged VOA in both PrCG and PoCG.
- These findings highlight the brain's plasticity in response to spinal cord decompression.
