Title :
A three-concentric ellipsoids finite element model of the human head
Author_Institution :
Dept. of Biomed. Eng., Tulane Univ., New Orleans, LA, USA
Abstract :
Three dimensional finite element models provide an effective method to study the relationship between human scalp potentials and neural current sources in the brain. A three-concentric ellipsoids model of head is developed by means of standard computer packages PATRAN and ABAQUS. A convergence test of the model is carried out to show that numerical results converge to the exact solution as the model is refined. The finite element results are compared with those predicted by an analytic solution of a layered sphere to indicate model accuracy. Different patterns of potential distribution on the scalp are studied due to the different locations and orientations of dipole sources and conductive properties of the head.
Keywords :
brain models; digital simulation; electroencephalography; finite element analysis; 3-concentric; 3D model; ABAQUS; PATRAN; analytic solution; computer packages; conductive properties; convergence test; dipole sources; ellipsoids finite element model; human head; human scalp potentials; layered sphere; model accuracy; neural current sources; Brain modeling; Convergence of numerical methods; Ellipsoids; Finite element methods; Humans; Packaging; Predictive models; Scalp; Standards development; Testing;
Conference_Titel :
Biomedical Engineering Conference, 1993., Proceedings of the Twelfth Southern
Conference_Location :
New Orleans, LA, USA
Print_ISBN :
0-7803-0976-6
DOI :
10.1109/SBEC.1993.247387
