title: Acquisition of electrophysiologic signals during magnetic resonance imaging.
abstract: We describe a low cost system for acquiring electrophysiological signals during magnetic resonance imaging. The system consists of high common-mode-rejection and low noise operational amplifiers, coupled by fiber optic cables to a receiver located at the periphery of the magnetic field. The system minimizes noise introduction which would contaminate image signals.
authors.affiliation: Brain Research Institute, University of California at Los Angeles, 90095-1763, USA.
authors.forename: J M
authors.initials: JM
authors.lastname: Parker
authors.forename: J R
authors.initials: JR
authors.lastname: Alger
authors.forename: M A
authors.initials: MA
authors.lastname: Woo
authors.forename: D
authors.initials: D
authors.lastname: Spriggs
authors.forename: R M
authors.initials: RM
authors.lastname: Harper
mesh_terms: D004594:Electrophysiology / Q000295:instrumentation*; D004867:Equipment Design; D006801:Humans; D008279:Magnetic Resonance Imaging; D008280:Magnetics; D012890:Sleep / Q000502:physiology