Shetty A N
Eugene P. Pendergrass Diagnostic Radiology Research Laboratories, Department of Radiology, University of Pennsylvania, Philadelphia 19104-6086.
Magn Reson Med. 1988 Sep;8(1):84-8. doi: 10.1002/mrm.1910080110.
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.
