Restoration of electrophysiological signals distorted by inductive effects of magnetic field gradients during MR sequences

  title={Restoration of electrophysiological signals distorted by inductive effects of magnetic field gradients during MR sequences},
  author={Jacques Felblinger and Johannes Slotboom and Roland Kreis and B Jung and Chris Boesch},
  journal={Magnetic Resonance in Medicine},
A generally applicable method for almost complete suppression of signal artifacts on electrophysiological signals caused by B0‐gradient switching (gradient noise) is presented. The method is demonstrated for electrocardiograms (ECGs) but can also be used for other electrophysiological signals. It takes advantage of the fact that under certain conditions, the effect of switching the B0‐field gradient upon an electrophysiological signal can be modeled as a linear time‐invariant system and fully… 
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  • A. Shetty
  • Physics
    Magnetic resonance in medicine
  • 1988
A simple design is proposed to suppress the noise pickup in the ECG leads from RF and gradient pulses during NMR imaging. The ECG signal is passed through a low‐pass filter and a
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