Forward Field Computation with OpenMEEG

被引:85
作者
Gramfort, Alexandre [1 ]
Papadopoulo, Theodore [2 ]
Olivi, Emmanuel [2 ]
Clerc, Maureen [2 ]
机构
[1] Neurospin CEA, INRIA Saclay Ile De France, Parietal Project Team, F-91191 Gif Sur Yvette, France
[2] INRIA Sophia Antipolis Mediterranee, Athena Project Team, F-06902 Sophia Antipolis, France
关键词
ELECTROMAGNETIC THEORY; HEAD; EEG; ELECTROCARDIOLOGY; CONDUCTIVITY; MEG/EEG; MODEL;
D O I
10.1155/2011/923703
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
To recover the sources giving rise to electro- and magnetoencephalography in individual measurements, realistic physiological modeling is required, and accurate numerical solutions must be computed. We present OpenMEEG, which solves the electromagnetic forward problem in the quasistatic regime, for head models with piecewise constant conductivity. The core of OpenMEEG consists of the symmetric Boundary Element Method, which is based on an extended Green Representation theorem. OpenMEEG is able to provide lead fields for four different electromagnetic forward problems: Electroencephalography (EEG), Magnetoencephalography (MEG), Electrical Impedance Tomography (EIT), and intracranial electric potentials (IPs). OpenMEEG is open source and multiplatform. It can be used from Python and Matlab in conjunction with toolboxes that solve the inverse problem; its integration within FieldTrip is operational since release 2.0.
引用
收藏
页数:13
相关论文
共 28 条
[1]   APPLICATION OF ELECTROMAGNETIC THEORY TO ELECTROCARDIOLOGY .2. NUMERICAL SOLUTION OF INTEGRAL EQUATIONS [J].
BARNARD, ACL ;
DUCK, IM ;
LYNN, MS ;
TIMLAKE, WP .
BIOPHYSICAL JOURNAL, 1967, 7 (05) :463-&
[2]   APPLICATION OF ELECTROMAGNETIC THEORY TO ELECTROCARDIOLOGY .I. DERIVATION OF INTEGRAL EQUATIONS [J].
BARNARD, ACL ;
DUCK, IM ;
LYNN, MS .
BIOPHYSICAL JOURNAL, 1967, 7 (05) :443-&
[3]  
Clerc M., 2005, ESAIM Proc, V14, P63
[4]  
Dannhauer M., HUMAN BRAIN IN PRESS
[5]   A LINEAR DISCRETIZATION OF THE VOLUME CONDUCTOR BOUNDARY INTEGRAL-EQUATION USING ANALYTICALLY INTEGRATED ELEMENTS [J].
DEMUNCK, JC .
IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, 1992, 39 (09) :986-990
[6]   Forward problem solution of electromagnetic source imaging using a new BEM formulation with high-order elements [J].
Gençer, NG ;
Tanzer, IO .
PHYSICS IN MEDICINE AND BIOLOGY, 1999, 44 (09) :2275-2287
[7]   ON BIOELECTRIC POTENTIALS IN AN INHOMOGENEOUS VOLUME CONDUCTOR [J].
GESELOWI.DB .
BIOPHYSICAL JOURNAL, 1967, 7 (01) :1-&
[8]   In vivo measurement of the brain and skull resistivities using an EIT-based method and the combined analysis of SEF/SEP data [J].
Gonçalves, S ;
de Munck, JC ;
Verbunt, JPA ;
Heethaar, RM ;
da Silva, FHL .
IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, 2003, 50 (09) :1124-1128
[9]   OpenMEEG: opensource software for quasistatic bioelectromagnetics [J].
Gramfort, Alexandre ;
Papadopoulo, Theodore ;
Olivi, Emmanuel ;
Clerc, Maureen .
BIOMEDICAL ENGINEERING ONLINE, 2010, 9
[10]   REALISTIC CONDUCTIVITY GEOMETRY MODEL OF THE HUMAN HEAD FOR INTERPRETATION OF NEUROMAGNETIC DATA [J].
HAMALAINEN, MS ;
SARVAS, J .
IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, 1989, 36 (02) :165-171