title: Imaging characteristics of different multichannel magnetocardiographic systems.
abstract: In this study a comparison of multichannel magnetocardiographic systems is performed with respect to the "detectable" information content. We investigate the lead-field matrices, the slope of the singular values and the source spaces of three different devices: the VectorView (Neuromag: magnetometer-gradiometer mixed device) of the BioMag Laboratory, Helsinki University Central Hospital (HUCH), the arrangement of electronically coupled magnetometers of the Physikalisch-Technische Bundesanstalt Berlin (PTB) and a virtual sensor geometry which was optimized for an improved slope of the singular values at the Institute of Biomedical Engineering, Karlsruhe.
authors.affiliation: Institute of Biomedical Engineering, Universität Karlsruhe (TH), Germany. Marc.Nalbach@ibt.uni-karlsruhe.de
authors.forename: M
authors.initials: M
authors.lastname: Nalbach
authors.forename: O
authors.initials: O
authors.lastname: Skipa
authors.forename: L
authors.initials: L
authors.lastname: Trahms
authors.forename: J
authors.initials: J
authors.lastname: Nenonen
authors.forename: O
authors.initials: O
authors.lastname: Kosch
authors.forename: U
authors.initials: U
authors.lastname: Steinhoff
authors.forename: O
authors.initials: O
authors.lastname: Dössel
mesh_terms: D000328:Adult; D018780:Body Surface Potential Mapping / Q000295:instrumentation*; D003198:Computer Simulation; D004562:Electrocardiography / Q000295:instrumentation*; D004867:Equipment Design; D020342:Finite Element Analysis; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000295:instrumentation; D021621:Imaging, Three-Dimensional / Q000295:instrumentation; D008280:Magnetics / Q000295:instrumentation*; D008297:Male; D008838:Microcomputers; D012016:Reference Values; D012680:Sensitivity and Specificity; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*