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 language | English (US) |
|---|---|
| Title of host publication | Proceedings of the Annual Conference on Engineering in Medicine and Biology |
| Publisher | Publ by IEEE |
| Pages | 793-794 |
| Number of pages | 2 |
| Edition | pt 2 |
| ISBN (Print) | 0780302168 |
| State | Published - Dec 1 1991 |
| Externally published | Yes |
| Event | Proceedings of the 13th Annual International Conference of the IEEE Engineering in Medicine and Biology Society - Orlando, FL, USA Duration: Oct 31 1991 → Nov 3 1991 |
Publication series
| Name | Proceedings of the Annual Conference on Engineering in Medicine and Biology |
|---|---|
| Number | pt 2 |
| Volume | 13 |
| ISSN (Print) | 0589-1019 |
Other
| Other | Proceedings of the 13th Annual International Conference of the IEEE Engineering in Medicine and Biology Society |
|---|---|
| City | Orlando, FL, USA |
| Period | 10/31/91 → 11/3/91 |
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.