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The diagnostic utility of dermatomal evoked potentials
R J Chabot1, G D Donald, C D Glastein
1Psychiatry Department, NYU School of Medicine, New York 10016, USA.
Journal of Spinal Disorders
|August 1, 1995
Summary
Dermatomal evoked potentials (EPs) offer valuable diagnostic insights into sensory nerve root compromise, complementing MR imaging. These EPs reliably identify nerve root dysfunction, even when MRI shows no structural abnormalities.
Area of Science:
- Neurology
- Neurophysiology
- Diagnostic Imaging
Background:
- Nerve root compromise is a common cause of neck and lower back pain.
- Magnetic resonance (MR) imaging is a primary tool for evaluating structural abnormalities.
- The diagnostic utility of evoked potentials (EPs) for assessing nerve root function requires further clarification.

