Jump to : Download | Abstract | Contact | BibTex reference | EndNote reference |

SLO96

J. A. Sanders, J. D. Lewine, W. W. Orrison Jr.. Comparison of primary motor cortex localization using functional magnetic resonance imaging and magnetoencephalography. Human Brain Mapping, 4(1):47-57, 1996.

Download

Download paper: Doi page (doi)

Copyright notice:This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. These works may not be reposted without the explicit permission of the copyright holder.

Abstract

The primary goal of the study was to compare estimates of motor cortex localization from functional magnetic resonance imaging (FMRI) and magnetoencephalography (MEG). Thirteen normal volunteers were studied using both methods. FMRI was performed on a clinical 1.5 T system using gradient-echo acquisitions and basic t-test processing. MEG primary motor field was characterized by a single dipole model. Comparisons between the location of the best-fitting MEG dipole and the FMRI activation results were made using both fixed regions-of-interest weighted averaging and clustering analysis to reduce the observed FMRI activations to a single representative location.Both FMRI and MEG identified expected anatomic regions of primary motor activity and there was overall agreement to within 10 mm between these two functional imaging modalities. Given the observed agreement between these two techniques, it does not appear that the proposed artifactual mechanisms of local bulk motions or large-vessel sensitivity will seriously preclude the clinical utility of FMRI for preoperative localization of sensorimotor cortex. 1996 Wiley-Liss, Inc

Contact

J. A. Sanders
J. D. Lewine
W. W. Orrison Jr.

BibTex Reference

@article{SLO96,
   Author = {Sanders, J. A. and Lewine, J. D. and Orrison Jr, W. W.},
   Title = {Comparison of primary motor cortex localization using functional magnetic resonance imaging and magnetoencephalography},
   Journal = {Human Brain Mapping},
   Volume = {4},
   Number = {1},
   Pages = {47--57},
   Year = {1996}
}

EndNote Reference [help]

Get EndNote Reference (.ref)