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MR angiography.

A G Clifton1

  • 1Department of Neuroradiology, Atkinson Morley's Hospital, London, UK.

British Medical Bulletin
|November 25, 2000
PubMed
Summary
This summary is machine-generated.

Angiography effectively evaluates carotid stenosis using conventional or non-invasive methods. While useful for some intracranial conditions, MR angiography

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Area of Science:

  • Vascular imaging
  • Neurology
  • Radiology

Background:

  • Carotid stenosis is primarily evaluated using conventional catheter angiography or non-invasive techniques like MR angiography, CT angiography, and ultrasound.
  • Less common conditions such as vertebral artery stenosis, dissection, and fibromuscular dysplasia are also detectable.
  • The utility of MR angiography for intracranial evaluations is less definitive compared to its extracranial applications.

Purpose of the Study:

  • To assess the role and accuracy of various angiography techniques in diagnosing neck and intracranial vascular conditions.
  • To compare the effectiveness of conventional angiography versus non-invasive methods, particularly MR angiography, for specific pathologies.

Main Methods:

  • Review of conventional catheter angiography, MR angiography, CT angiography, and ultrasound for evaluating neck and intracranial vasculature.

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  • Focus on the diagnostic capabilities of these techniques for carotid stenosis, vertebral artery disease, dissection, fibromuscular dysplasia, and intracranial abnormalities.

    • Main Results:

    • Conventional and non-invasive angiography are reliable for assessing carotid stenosis and other neck vessel pathologies.
    • MR angiography shows utility in pre-surgical evaluation for vessel occlusion/encasement and excluding venous thrombosis.
    • The role of MR angiography in detecting intracranial aneurysms is less established, with conventional angiography remaining superior.

    Conclusions:

    • Non-invasive imaging, including MR angiography, is increasingly reliable for evaluating extracranial vascular diseases.
    • Conventional angiography remains the gold standard for detecting intracranial aneurysms.
    • Straight-forward spin echo MRI is the most accurate method for identifying arteriovenous malformations.