DocumentCode
545113
Title
Magnetic imaging of conductivity
Author
Ahlfors, Seppo ; Ilmoniemi, Risto
Author_Institution
Low Temperature Laboratory, Helsinki University of Technology, 02150 Espoo, Finland
Volume
5
fYear
1992
fDate
Oct. 29 1992-Nov. 1 1992
Firstpage
1717
Lastpage
1718
Abstract
The conductivity distribution of an object can be estimated by injecting current with surface electrodes and by measuring the magnetic field thus generated. We call this method magnetic impedance tomography (MIT). A model experiment demonstrates how conductivity variations can be determined using the source estimation techniques of biomagnetism. Better knowledge of conductivity distributions obtained with MIT may help improve the accuracy of locating brain activity with magnetoencephalography (MEG) or electroencephalography (EEG).
Keywords
Biomedical measurements; Brain modeling;
fLanguage
English
Publisher
ieee
Conference_Titel
Engineering in Medicine and Biology Society, 1992 14th Annual International Conference of the IEEE
Conference_Location
Paris, France
Print_ISBN
0-7803-0785-2
Electronic_ISBN
0-7803-0816-6
Type
conf
DOI
10.1109/IEMBS.1992.5762007
Filename
5762007
Link To Document