The locally orthogonal coordinate systems for analyzing inverse problems of magnetostatic fields-applications to magnetocardiogram and magnetoencephalogram

• Published in: IEEE transactions on magnetics Vol. 29; no. 6; pp. 3343 - 3345
• Main Authors: Saotome, H., Saito, Y.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: New York, NY IEEE 01-11-1993; Institute of Electrical and Electronics Engineers
• Subjects: Biological and medical sciences; Current measurement; Electrodiagnosis. Electric activity recording; Heart; Inverse problems; Investigative techniques, diagnostic techniques (general aspects); Magnetic analysis; Magnetic field measurement; Magnetostatics; Medical sciences; Miscellaneous. Technology; Pattern analysis; Pattern matching; Scanning probe microscopy; Superconducting magnets; Heart; Magnetoencephalography; Magnetostatic wave; Magnetocardiography; Coordinate system; Algorithm; Pattern matching; Brain (vertebrata); Inverse problem
• ISSN: 0018-9464; 1941-0069
• DOI: 10.1109/20.281170

The authors previously proposed the sampled pattern matching (SPM) method to analyze inverse problems in magnetostatic fields. Because of current dipole angle subdivisions, the SPM method essentially requires considerable CPU time. In order to remove the current dipole angle subdivisions, the authors propose a formulation of the SPM method using cylindrical and spherical coordinate systems. Applications of this faster SPM method to the magnetocardiogram (MCG) and magnetoencephalogram (MEG) identify the heart defect and activated brain parts, respectively.< >