NDLI: Controlling electrical side effects of cardiac stimulus pulses due to high impedance electrodes

Content Provider	IEEE Xplore Digital Library
Author	Andrews, C.A. Kermani, B.G. Cascio, W.E. Nagle, H.T.
Copyright Year	1994
Description	Author affiliation: Dept. of Electr. & Comput. Eng., North Carolina State Univ., Raleigh, NC, USA (Andrews, C.A.; Kermani, B.G.; Cascio, W.E.; Nagle, H.T.)
Abstract	A method of measuring the extracellular voltage field in working cardiac tissue with high impedance sensors immediately after a superthreshold stimulation pulse has been developed. Previously, the stimulus pulse charged the input circuitry of the front-end amplifier with an amplitude much greater than the biological signal desired. To address this problem a blanking period was introduced which disables the amplifiers for the duration of the superthreshold stimulus pulse. As a result of this process, electrical activity can be measured almost immediately after the superthreshold stimulus pulse without distortion.<>
Starting Page	960
Ending Page	961
File Size	212452
Page Count	2
File Format	PDF
ISBN	0780320506
DOI	10.1109/IEMBS.1994.415233
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1994-11-03
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Pulse amplifiers Pulse measurements Impedance measurement Voltage measurement Extracellular Cardiac tissue Biosensors Pulse circuits Blanking Distortion measurement
Content Type	Text
Resource Type	Article

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Controlling electrical side effects of cardiac stimulus pulses due to high impedance electrodes