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Magnetic Resonance Imaging

Magnetic Resonance Imaging

Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...

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Updated: Apr 28, 2026

Diffusion Tensor Magnetic Resonance Imaging in Chronic Spinal Cord Compression

Diffusion Tensor Magnetic Resonance Imaging in Chronic Spinal Cord Compression

Published on: May 7, 2019

Traumatic myelopathy: current concepts in imaging.

Eline De Smet¹, Filip M Vanhoenacker¹, Paul M Parizel¹

¹Department of Radiology, Antwerp University Hospital, Edegem, Belgium.

Seminars in Musculoskeletal Radiology

|June 5, 2014

Summary

This summary is machine-generated.

Imaging is crucial for diagnosing traumatic myelopathy after spinal trauma. Magnetic resonance imaging (MRI) is essential for assessing spinal cord injury and predicting outcomes, with new techniques showing promise for early detection.

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Area of Science:

Neurology
Radiology
Trauma Surgery

Background:

Traumatic myelopathy frequently occurs after spinal trauma, often leading to poor prognosis and significant socioeconomic impact.
Accurate diagnosis and timely intervention for spinal cord injury (SCI) necessitate understanding its epidemiology and imaging features.

Purpose of the Study:

To review the role of various imaging modalities in the diagnosis and management of traumatic myelopathy.
To highlight the diagnostic capabilities and limitations of current and emerging imaging techniques for SCI.

Main Methods:

Review of computed tomography (CT) as a first-line investigation for suspected SCI.
Emphasis on magnetic resonance imaging (MRI) for detecting spinal cord edema, hemorrhage, and transection, and for predicting outcomes.
Introduction to diffusion-weighted imaging (DWI) and diffusion tensor imaging (DTI) for early SCI detection and white matter integrity assessment.

Main Results:

CT identifies vertebral lesions but cannot directly assess the spinal cord.
MRI is vital for diagnosing acute SCI, evaluating intramedullary changes, and guiding follow-up.
DWI and DTI show potential for very early SCI detection by measuring water diffusion, though further research is needed to overcome technical limitations.

Conclusions:

Imaging, particularly MRI, is indispensable for the diagnosis, prognosis, and follow-up of traumatic myelopathy.
Advanced techniques like DWI and DTI offer promising avenues for early SCI detection, requiring further refinement for clinical application.