What does MRI provide in evaluating radicular symptoms and suspected nerve root compression?

• A. Not useful for radicular symptoms
• B. Tests bone healing
• C. Only bone density evaluation
• D. Detailed soft-tissue visualization of discs, nerve roots, and the spinal canal; identifies herniations, stenosis, inflammatory or infectious processes

Answer: (D)

MRI is ideally suited for evaluating radicular symptoms because it provides detailed soft-tissue contrast of the spine, showing the discs, nerve roots, and spinal canal in clear relation to each other. This allows you to see a herniated disc pressing on a nerve root, narrowing of the spinal canal or the neural foramina (stenosis) that could compress a nerve, and any inflammatory or infectious processes affecting the discs or surrounding tissues. In short, MRI directly visualizes the structures that most often cause radiculopathy, helping to pinpoint the source of nerve root compression. Other imaging modalities that focus on bone detail or density aren’t as informative for these soft-tissue pathologies.