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Related Experiment Videos

Basic concepts of functional arteriovenous MR imaging malformations

P A Turski1, D Cordes, B Mock

  • 1Department of Radiology, University of Wisconsin Hospitals and Clinics, Madison, Wisconsin 53792, USA.

Neuroimaging Clinics of North America
|June 25, 1998
PubMed
Summary
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Functional magnetic resonance imaging (fMRI) can identify brain regions near arteriovenous malformations (AVMs). Studies show functions may shift, highlighting the need for pre-surgical cortical mapping.

Area of Science:

  • Neuroimaging
  • Neurosurgery
  • Radiology

Background:

  • Arteriovenous malformations (AVMs) can affect brain function.
  • Accurate pre-surgical planning is crucial for AVM treatment.
  • Functional magnetic resonance imaging (fMRI) offers insights into brain organization.

Purpose of the Study:

  • To review the technical aspects of fMRI.
  • To demonstrate fMRI's utility in identifying cortical areas adjacent to AVMs.
  • To investigate potential functional changes in the presence of AVMs.

Main Methods:

  • Review of fMRI technical features.
  • Application of fMRI to map cortical regions near AVMs.
  • Analysis of functional organization in patients with AVMs.

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Main Results:

  • fMRI can delineate primary cortical regions adjacent to AVMs.
  • Preliminary findings suggest functional translocation may occur when AVMs involve eloquent cortex.
  • Identification of critical functional areas is feasible with fMRI.

Conclusions:

  • fMRI is a valuable tool for pre-surgical planning in AVM cases.
  • Cortical functional reorganization may occur around AVMs.
  • Pre-operative cortical mapping using fMRI is essential for safe and effective AVM excision.