Suppression of radiofrequency interference in cardiac gated MRI: A simple design
- 1 September 1988
- journal article
- research article
- Published by Wiley in Magnetic Resonance in Medicine
- Vol. 8 (1) , 84-88
- https://doi.org/10.1002/mrm.1910080110
Abstract
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 common-mode-rejection amplifier to reduce erroneous signal generated by the electrical ground loops. The output is gated through a CMOS switch to blank the preamplifier from the NMR during data acquisition. © 1988 Academic Press, Inc.Keywords
This publication has 4 references indexed in Scilit:
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- Gated cardiac imaging using low-field NMRPhysics in Medicine & Biology, 1986
- A Ventilator for Magnetic Resonance ImagingInvestigative Radiology, 1986