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Reduction of motion artifacts using a two-frequency impedance plethysmograph and adaptative filtering

Author
Rosell, F.; Cohen, K.; Webster, J.
Type of activity
Journal article
Journal
IEEE transactions on biomedical engineering
Date of publication
1995-10
Volume
42
Number
10
First page
1044
Last page
1048
URL
http://hdl.handle.net/2117/1347 Open in new window
Abstract
We measured transthoracic impedance in nine presumed healthy adult subjects with a two-frequency plethysmograph at 57 kHz and 185 kHz. The measurement protocol included periods of normal breathing without motion and periods of motion without breathing. We analyzed the cross-correlation and the ratio between the signals at both frequencies for all the different maneuvers. The correlation coefficient was between 0.97 and 1 for breathing, the minimal cross-correlation (0.81) was for simulated obstr...
Citation
Rosell, J; Cohen, KP; Webster, JG. Reduction of motion artifacts using a two-frequency impedance plethysmograph and adaptative filtering. IEEE Transactions on Biomedical Engineering. 1995, vol 42, núm.10, p. 1044-1048
Group of research
CREB - Biomedical Engineering Research Centre
IEB - Electronic and Biomedical Instrumentation

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