Annals of Indian Academy of Neurology
  Users Online: 1171 Home | About the Journal | InstructionsCurrent Issue | Back IssuesLogin      Print this page Email this page  Small font size Default font size Increase font size
REVIEW: MANAGEMENT UPDATES
Year : 2010  |  Volume : 13  |  Issue : 1  |  Page : 14-22

Clinical applications of magnetoencephalography in epilepsy


1 Comprehensive Epilepsy Program, Henry Ford Hospital, Detroit MI; New York University Epilepsy Center, New York NY; Department of Neurology, Wayne State University Detroit MI, USA
2 Comprehensive Epilepsy Program, Henry Ford Hospital, Detroit MI; Department of Neurology, Wayne State University Detroit MI; Department of Physics, Oakland University, Rochester MI, USA

Correspondence Address:
Amit Ray
Assistant Professor of Neurology, NYU School of Medicine New York, NY New York
USA
Login to access the Email id

Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0972-2327.61271

Rights and Permissions

Magnetoencehalography (MEG) is being used with increased frequency in the pre-surgical evaluation of patients with epilepsy. One of the major advantages of this technique over the EEG is the lack of distortion of MEG signals by the skull and intervening soft tissue. In addition, the MEG preferentially records activity from tangential sources thus recording activity predominantly from sulci, which is not contaminated by activity from apical gyral (radial) sources. While the MEG is probably more sensitive than the EEG in detecting inter-ictal spikes, especially in the some locations such as the superficial frontal cortex and the lateral temporal neocortex, both techniques are usually complementary to each other. The diagnostic accuracy of MEG source localization is usually better as compared to scalp EEG localization. Functional localization of eloquent cortex is another major application of the MEG. The combination of high spatial and temporal resolution of this technique makes it an extremely helpful tool for accurate localization of visual, somatosensory and auditory cortices as well as complex cognitive functions like language. Potential future applications include lateralization of memory function.


[FULL TEXT] [PDF]*
Print this article     Email this article
 Next article
 Previous article
 Table of Contents

 Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
 Citation Manager
 Access Statistics
 Reader Comments
 Email Alert *
 Add to My List *
 * Requires registration (Free)
 

 Article Access Statistics
    Viewed4699    
    Printed253    
    Emailed1    
    PDF Downloaded252    
    Comments [Add]    
    Cited by others 14    

Recommend this journal