Acquisition of electrophysiologic signals during magnetic resonance imaging.
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.
Parker
J M
JM
Brain Research Institute, University of California at Los Angeles, 90095-1763, USA.
Alger
J R
JR
Woo
M A
MA
Spriggs
D
D
Harper
R M
RM
D004594:Electrophysiology / Q000295:instrumentation*; D004867:Equipment Design; D006801:Humans; D008279:Magnetic Resonance Imaging; D008280:Magnetics; D012890:Sleep / Q000502:physiology