Title :
Fourier-space approach to biomagnetic imaging
Author :
Schlitt, H.A. ; Dallas, W.J.
Author_Institution :
Los Alamos Nat. Lab., NM, USA
Abstract :
A noniterative technique for estimating electric current densities from biomagnetic field measurements is presented. A set of linear equations is formed from the Fourier-transformed Maxwell equations, sampled according to the Shannon sampling theorem, and solved by matrix methods. The sampling theorem provides a way of including prior information and assumptions concerning the current distributions, internal magnetic field, and measurement geometry
Keywords :
biomagnetism; magnetic field measurement; patient diagnosis; Fourier-space approach; Fourier-transformed Maxwell equations; Shannon sampling theorem; biomagnetic imaging; current distributions; electric current density estimation; internal magnetic field; linear equations set; matrix methods; measurement geometry; noniterative technique; prior information; Biomagnetics; Current density; Current distribution; Current measurement; Electric variables measurement; Information geometry; Inverse problems; Magnetic field measurement; Maxwell equations; Sampling methods;
Conference_Titel :
Signals, Systems and Computers, 1992. 1992 Conference Record of The Twenty-Sixth Asilomar Conference on
Conference_Location :
Pacific Grove, CA
Print_ISBN :
0-8186-3160-0
DOI :
10.1109/ACSSC.1992.269279
