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Diffusion Tensor Magnetic Resonance Imaging in Chronic Spinal Cord Compression
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Delayed Magnetic Resonance Imaging in Patients With Cervical Spinal Cord Injury Without Radiographic Abnormality

Jun Ouchida1, Yasutsugu Yukawa, Keigo Ito

  • 1Department of Orthopedic Surgery, Chubu Rosai Hospital, Nagoya, Japan.

Spine
|February 19, 2016
PubMed
Abstract

Insights

Delayed MRI after spinal cord injury without radiographic abnormality (SCIWORA) shows significant changes in signal intensity and prevertebral hyperintensity. These findings correlate with clinical symptom severity, offering valuable insights into spinal cord status.

Area of Science:

  • Neurology
  • Radiology
  • Medical Imaging

Background:

  • Magnetic resonance imaging (MRI) is crucial for diagnosing acute neurological injuries.
  • Increased signal intensity (ISI) and prevertebral hyperintensity (PVH) are common in spinal cord injury without radiographic abnormality (SCIWORA).
  • Changes in these MRI findings after the acute phase of SCIWORA remain unclear.

Purpose of the Study:

  • To investigate MRI findings on delayed imaging after the acute phase of SCIWORA.
  • To determine the relationship between these delayed MRI findings and symptom severity in SCIWORA patients.

Main Methods:

  • A prospective imaging study included 68 patients diagnosed with SCIWORA within 48 hours of injury.
  • Acute (within 2 days) and delayed (after 2 weeks) MRI scans were compared.
  • ISI grade and ISI/PVH ranges were measured; neurological status was assessed using JOA and ASIA scales.

Main Results:

  • Delayed MRI showed significant changes in ISI and PVH compared to acute MRI (P < 0.001 for PVH).
  • PVH ranges significantly decreased from 3.0 ± 1.7 in acute to 1.3 ± 0.9 in delayed MRI.
  • Delayed ISI grade and both acute and delayed PVH range showed significant negative correlations with JOA scores.

Conclusions:

  • Significant differences exist in ISI and PVH findings between acute and delayed MRI in SCIWORA patients.
  • Delayed MRI findings correlate with clinical symptom severity, providing valuable information on the spinal cord's condition.
  • These findings highlight the utility of delayed MRI in assessing SCIWORA outcomes.

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