Title :
Fourier Imaging of Electrical Currents in the Human Brain from Their Magnetic Fields
Author :
Kullmann, Walter ; Dallas, William J.
Author_Institution :
Philips GmbH Forschungslaboratorium Hamburg
Abstract :
Computer simulations of the reconstruction and imaging of neural currents from their external magnetic fields are presented. The method is based on the Fourier transformed Maxwell equations in combination with the Whittaker-Shannon sampling theorem. The simultaneous reconstruction of more than one current generator without any special physiological model assumptions of the current density distribution is discussed.
Keywords :
Current density; Humans; Image reconstruction; Magnetic field measurement; Magnetic fields; Magnetic sensors; Maxwell equations; SQUIDs; Sampling methods; Slabs; Biomedical Engineering; Brain; Computer Simulation; Electromagnetic Fields; Electromagnetics; Fourier Analysis; Humans; Image Processing, Computer-Assisted;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
DOI :
10.1109/TBME.1987.326031