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Related Experiment Videos

Acute spontaneous spinal epidural hematomas.

M B Fukui1, A S Swarnkar, R L Williams

  • 1Department of Radiology, University of Pittsburgh Medical Center, PA 15213, USA.

AJNR. American Journal of Neuroradiology
|September 3, 1999
PubMed
Summary

Acute spinal epidural hematomas (EDH) show characteristic MR imaging features, particularly heterogeneous hyperintensity with focal hypointensity on T2-weighted images. Neurologic impairment severity, not imaging, impacts management and outcome for these spontaneous EDH cases.

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Area of Science:

  • Radiology
  • Neurology
  • Medical Imaging

Background:

  • Spinal epidural hematomas (EDH) are rare, with limited characterization in the acute (<48 hours) phase.
  • Previous reports on MR imaging of spinal EDH exist, but focus on later stages.

Purpose of the Study:

  • To correlate MR imaging features of acute spontaneous spinal EDH with clinical management and patient outcomes.
  • To identify specific MR imaging findings indicative of acute spinal EDH within 48 hours of symptom onset.

Main Methods:

  • Eight patients with acute spontaneous EDH underwent 1.5 T MR imaging, including T1-weighted, contrast-enhanced T1-weighted, and T2-weighted sequences.
  • Two neuroradiologists analyzed MR images for signal characteristics, contrast enhancement, and spinal cord compression.
  • Clinical management and outcomes were correlated with the identified MR imaging findings.

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Main Results:

  • EDH locations varied: cervical, cervicothoracic, thoracolumbar, and lumbar spine.
  • On T1-weighted images, EDH signal intensity was isointense (5/8), hyperintense (2/8), or hypointense (1/8) to the spinal cord.
  • T2-weighted images consistently showed hyperintense EDH with focal heterogeneous hypointensity; severe cord compression occurred in 6/8 patients.
  • Four patients treated conservatively showed symptom resolution within 1-3 weeks.

Conclusions:

  • MR imaging effectively diagnoses acute spinal EDH, but findings did not dictate management or predict outcomes.
  • Heterogeneous hyperintensity with focal hypointensity on T2-weighted images suggests acute spinal EDH.
  • Neurologic impairment severity was the primary determinant of management and outcome.
  • Conservative treatment can be successful for EDH with minimal neurologic deficits, even with observed cord compression.