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Related Experiment Videos

Spine MR angiography

B C Bowen1, P M Pattany

  • 1Department of Radiology (R 308), University of Miami School of Medicine, FL 33136, USA.

Clinical Neuroscience (New York, N.Y.)
|January 1, 1997
PubMed
Summary
This summary is machine-generated.

MR angiography is emerging for spinal vessel evaluation. Post-gadolinium 3D Time-of-Flight (TOF) MR angiography best visualizes normal intradural vessels, while both TOF and Phase-Contrast (PC) techniques improve imaging of spinal vascular malformations.

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Area of Science:

  • Neuroradiology
  • Vascular Imaging
  • Spinal Diagnostics

Background:

  • Spinal vascular imaging using MR angiography (MRA) is an evolving field.
  • Intradural spinal vessels, including small arteries and veins on the cord surface, are challenging to visualize.
  • Intravenous gadolinium contrast enhances visualization for MRA techniques.

Purpose of the Study:

  • To assess the utility of different MR angiography techniques for evaluating spinal vessels.
  • To compare the effectiveness of time-of-flight (TOF) and phase-contrast (PC) MRA in visualizing normal and abnormal spinal vasculature.
  • To determine the role of MRA in screening for spinal vascular malformations.

Main Methods:

  • Application of 3D TOF and 2D/3D PC MR angiography techniques.

Related Experiment Videos

  • Intravenous gadolinium administration to enhance vessel visualization.
  • Comparison of MRA findings with standard MR imaging for spinal vascular malformations.

    • Main Results:

    • Post-gadolinium 3D TOF MRA effectively visualizes normal intradural vessels, particularly veins in the thoracolumbar region.
    • Both TOF and PC MRA techniques offer superior delineation of enlarged intradural vessels in spinal vascular malformations compared to standard MRI.
    • PC techniques are less sensitive than TOF for detecting arterial supply to dural arteriovenous fistulas.
    • TOF MRA can identify the foraminal level of dural fistulas via enlarged medullary veins.

    Conclusions:

    • MR angiography, combined with MR imaging, is recommended for screening suspected spinal vascular malformations.
    • 3D TOF MRA shows promise for visualizing normal spinal vasculature.
    • Further investigation is ongoing for MRA applications in spinal vascular tumors and occlusive diseases.