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Contrast-enhanced MR angiography

V M Runge1, J E Kirsch, C Lee

  • 1Magnetic Resonance Imaging and Spectroscopy Center, University of Kentucky, Lexington 40536-0084.

Journal of Magnetic Resonance Imaging : JMRI
|January 1, 1993
PubMed
Summary
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Contrast-enhanced Magnetic Resonance (MR) angiography, though preliminary, offers valuable diagnostic insights. Gadolinium-based contrast agents improve visualization of vascular abnormalities like aneurysms and occlusions in MR angiography.

Area of Science:

  • Medical Imaging
  • Radiology
  • Vascular Imaging

Background:

  • Magnetic Resonance (MR) angiography is an emerging diagnostic tool.
  • The application of contrast media in MR angiography is under investigation.
  • Current techniques show potential for contrast-enhanced MR angiography.

Purpose of the Study:

  • To investigate the utility of contrast media in MR angiography.
  • To determine if contrast-enhanced MR angiography provides additional diagnostic information.
  • To assess the impact of contrast agents on the visualization of specific vascular conditions.

Main Methods:

  • Utilized two-dimensional image inspection and pre- vs. post-contrast comparison.
  • Employed three-dimensional time-of-flight MR angiography.

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  • Administered intravenous gadolinium chelate contrast agent.

    • Main Results:

    • Contrast media-enhanced MR angiography provided valuable diagnostic information in specific cases.
    • Improved visualization of intracranial aneurysms was noted.
    • Enhanced depiction of arteriovenous malformations, venous anomalies, and arterial occlusions was demonstrated.

    Conclusions:

    • Contrast-enhanced MR angiography is a valuable tool for diagnosing vascular abnormalities.
    • Gadolinium-based contrast agents significantly improve the visualization of cerebrovascular and peripheral vascular diseases.
    • Further research into contrast media applications in MR angiography is warranted.