The influence of skull - Conductivity misspecification on inverse source localization in realistically shaped finite element head models

Brain Topography

Volumn 9, Issue 3, 1997, Pages 157-162

  Pohlmeier, Robert ^a   Buchner, Helmut ^a,d   Knoll, Gunter ^b   Rienäcker, Adrian ^b   Beckmann, Rainer ^a   Pesch, Jörg ^c  

^a UNIVERSITY HOSPITAL RWTH AACHEN   (Germany)

^b UNIVERSITY OF KASSEL   (Germany)

^c RWTH AACHEN UNIVERSITY   (Germany)

^d NONE   (Germany)

Author keywords

Finite element model (FEM); Inhomogeneous conductivity; Skull conductivity; Source localization

Indexed keywords

ARTICLE; BRAIN MAPPING; BRAIN REGION; ELECTRIC CONDUCTIVITY; ELECTROENCEPHALOGRAPHY; ERROR; FINITE ELEMENT ANALYSIS; PRIORITY JOURNAL; SKULL;

BRAIN; ELECTRIC CONDUCTIVITY; ELECTROENCEPHALOGRAPHY; HEAD; HUMANS; MODELS, BIOLOGICAL; MODELS, NEUROLOGICAL; SKULL;

EID: 0030965215     PISSN: 08960267     EISSN: None     Source Type: Journal    
DOI: 10.1007/BF01190384     Document Type: Article

References (19)

1. Ary, J.P., Klein, S.K. and Fender, D.H. Location of Sources of Evoked Scalp Potentials: Corrections for Skull and Scalp Thicknesses. IEEE Trans. Biomed. Engng., 1981, 28: 447-452.
2. Bertrand, O., Thevenet, M. and Perrin, F. 3D finite elemente method in brain elecrtical activity studies. In: J. Nenonen, H.-M. Rajala and T. Katila (Eds.), Biomagnetic localization and 3D modelling. Report Dep. of Technical Physics, Helsinki University, 1991, 154-171.
3. Buchner, H., Knoll, G., Fuchs, M., Rienäcker, A., Beckmann, R., Wagner, M., Silny, J., and Pesch, J. Inverse Location of electric current sources in finite element models of the human head. Electrenceph. clin. Neurophysiol, 1997 (in press).
4. Fuchs, M., Wagner, M., Wischmann, H.-A., Ottenberg, K. and Dössel, O. Possibilities of functionsal brain imaging using combination of MEG and MRT. In: C. Pantev (Ed.), Oscillatory event-relared brain dynamics, Plenum Press, New York, 1994, 435-457.
5. Geddes, L. A. and Baker, L.E. The Specific Resistance of Biological Material - A Compendium of Data for the Biomedical Engineer and Physiologist. Med. & Biol. Engng., 1967, 5: 271-293.
6. Ilmoniemi, R.J. Magnetic Source Imaging. In: Carpenter D. O. and Ayrapetyan, S. (Eds.), Biological Effects of Electric and Magnetic Fields. Academic Press San Diego, 1994, 2: 49-79.
7. Law, S. Thickness and resistivity variations over the upper surface of the human skull. Brain Topography, 1993, 6: 99-109.
8. Lütkenhöner, B., Menninghaus, E., Steinstrater, O., Wienbruch, C., Gissler, H. M. and Elbert, T. Neuromagnetic source analysis using magnetic resonance images for the construction of source and volume conductor model, Brain Topography, 1995, 7: 291-299.
9. Meijs, J.W.H., Peters, M.J. and Oosterom, A. van. Computation of MEG's and EEG's using a realistically shaped multicompartment model of the head. Med. biol. Engng. Comput., 1985, 23 (Suppl. Part 1): 36-37.
10. Menninghaus, E., Lütkenhöhner, B. and Gonzalez, S.L. Localization of a dipolar source in a skull phantom: relistic versus spherical model. IEEE Biomed. Eng., 1994, 41: 986-989.
11. Nunez, P.L. Localization of brain activity with electroencephalography. In: S. Sato (Ed.), Magnetoencephalography. Raven Press, New York, 1990, 39-65.
12. Peters, M. and Wieringa, H. The influence of the volume conductor on electric source estimation. Brain Topography, 1993, 5: 337-345.
13. Peters, M.J. Realistically shaped volume conductor models of the head. Brain Topography, 1994, 7: 328-329.
14. Roth, B., Balish, M., Gorbach, A. and Sato, S. How well does a three-sphere model predict positions of dipoles in a realisticaly shaped head? Electroenceph. clin. Neurophysiol., 1993, 175-184.
15. Srebro, R. Realistic modeling of VEP topography. Vision Res, 1990, 30: 1001-1009.
16. Stok, C. J., The Influence of Model Parameters on EEG/MEG Single Dipole Source Estimation. IEEE Trans. Biomed. Engng., 1987, 34: 289-296.
17. Wagner, M., Fuchs, M., Wischmann, H.A. and Drenckhahn, R. Representation of individual anatomy by triangle nets for current reconstruction, volume conductor modelling and visualization. In: H.J. Heinze, T.F. Mühle, G.R. Maugum and H. Schleich (Eds) Mapping cognition in time and space. Birkhäuser, Boston, 1996, in press.
18. Wagner, M., Fuchs, M., Wischmann, H.A., Ottenberg, K. and Dössel, O. Cortex segmentation from 3D MR images for MEG reconstructions. In: C. Baumgartner, L. Deecke, G. Stroink and S.J. Williamson (Eds) Biomagnetism: Fundamental research and clinical applications. IOS Press, Amsterdam, 1995, 433-438.
19. Yan, Y., Nunez, P.L. and Hart, R.T. Finite-element model of the human head: scalp potentials due to dipole sources. Med Biol Eng Comput, 1991, 29: 475-481.