Numerical aspects of spatio-temporal current density reconstruction from EEG-/MEG-data

The determination of the sources of electric activity inside the brain from electric and magnetic measurements on the surface of the head is known to be an ill-posed problem. In this paper, a new algorithm which takes temporal a priori information modeled by the smooth activation model into account...

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Bibliographic Details
Published in:IEEE transactions on medical imaging 2001-04, Vol.20 (4), p.314-324
Main Authors: Schmitt, U., Louis, A.K., Darvas, F., Buchner, H., Fuchs, M.
Format: Article
Language:English
Subjects:
Algorithms
Biological and medical sciences
Brain Mapping
Brain modeling
Current density
Electrodiagnosis. Electric activity recording
Electroencephalography
Humans
Image reconstruction
Information analysis
Investigative techniques, diagnostic techniques (general aspects)
Magnetic heads
Magnetoencephalography
Mathematics
Medical sciences
Models, Theoretical
Nervous system
Positron emission tomography
Signal Processing, Computer-Assisted
Spatial resolution
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Description
Summary:The determination of the sources of electric activity inside the brain from electric and magnetic measurements on the surface of the head is known to be an ill-posed problem. In this paper, a new algorithm which takes temporal a priori information modeled by the smooth activation model into account is described and compared with existing algorithms such as Tikhonov-Phillips.
ISSN:0278-0062
1558-254X
DOI:10.1109/42.921480