Influence of signal fidelity on impedance cardiographically-derived values at resting and accelerated heart rates

Barry E. Hurwitz, Liang Yu Shyu, Chih Cheng Lu, Sridhar P. Reddy, Neil Schneiderman, Joachim H. Nagel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This study was designed to assess the influence of amplifier bandwidth and signal fidelity on dZ/dtmax, stroke volume (SV), and systolic time intervals (LVET, PEP, QZ HI). The performance of commonly available commercial systems was tested over a broad range of heart rates. The results demonstrated that a digitally differentiated dZ/dt signal using a differentiator with a corner frequency of 50 Hz, when compared with the 15 Hz corner frequency used in the commercial impedance cardiograph, systematically enhanced the dZ/dtmax amplitude and SV measurements as the heart rate increased.

Original languageEnglish (US)
Title of host publicationProceedings of the Annual Conference on Engineering in Medicine and Biology
PublisherPubl by IEEE
Pages793-794
Number of pages2
Editionpt 2
ISBN (Print)0780302168
StatePublished - Dec 1 1991
Externally publishedYes
EventProceedings of the 13th Annual International Conference of the IEEE Engineering in Medicine and Biology Society - Orlando, FL, USA
Duration: Oct 31 1991Nov 3 1991

Publication series

NameProceedings of the Annual Conference on Engineering in Medicine and Biology
Numberpt 2
Volume13
ISSN (Print)0589-1019

Other

OtherProceedings of the 13th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
CityOrlando, FL, USA
Period10/31/9111/3/91

ASJC Scopus subject areas

  • Signal Processing
  • Biomedical Engineering
  • Computer Vision and Pattern Recognition
  • Health Informatics

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  • Cite this

    Hurwitz, B. E., Shyu, L. Y., Lu, C. C., Reddy, S. P., Schneiderman, N., & Nagel, J. H. (1991). Influence of signal fidelity on impedance cardiographically-derived values at resting and accelerated heart rates. In Proceedings of the Annual Conference on Engineering in Medicine and Biology (pt 2 ed., pp. 793-794). (Proceedings of the Annual Conference on Engineering in Medicine and Biology; Vol. 13, No. pt 2). Publ by IEEE.