Recycling cardiogenic artifacts in impedance pneumography
Purpose: Biomedical sensors often exhibit cardiogenic artifacts which, while distorting the signal of interest, carry useful hemodynamic information. We propose an algorithm to remove and extract hemodynamic information from these cardiogenic artifacts. Methods: We apply a nonlinear time-frequency analysis technique, the de-shape synchrosqueezing transform (dsSST), to adaptively isolate the high- and low-frequency components of a single-channel signal. We demonstrate this technique's effectiveness by removing and deriving hemodynamic information from the cardiogenic artifact in an impedance pneumography (IP). Results: The instantaneous heart rate is extracted, and the cardiac and respiratory signals are reconstructed. Conclusions: The dsSST is suitable for generating useful hemodynamic information from the cardiogenic artifact in a single-channel IP. We propose that the usefulness of the dsSST as a recycling tool extends to other biomedical sensors exhibiting cardiogenic artifacts.
Duke Scholars
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Related Subject Headings
- Biomedical Engineering
- 4003 Biomedical engineering
- 3006 Food sciences
- 1004 Medical Biotechnology
- 0906 Electrical and Electronic Engineering
- 0903 Biomedical Engineering
Citation
Published In
DOI
EISSN
ISSN
Publication Date
Volume
Start / End Page
Related Subject Headings
- Biomedical Engineering
- 4003 Biomedical engineering
- 3006 Food sciences
- 1004 Medical Biotechnology
- 0906 Electrical and Electronic Engineering
- 0903 Biomedical Engineering