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 |
|---|---|
| Title of host publication | Proceedings of the Annual Conference on Engineering in Medicine and Biology |
| Place of Publication | Piscataway, NJ, United States |
| Publisher | Publ by IEEE |
| Pages | 793-794 |
| Number of pages | 2 |
| Volume | 13 |
| 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 |
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 |
Fingerprint
ASJC Scopus subject areas
- Bioengineering
Cite this
Influence of signal fidelity on impedance cardiographically-derived values at resting and accelerated heart rates. / Hurwitz, Barry; Shyu, Liang Yu; Lu, Chih Cheng; Reddy, Sridhar P.; Schneiderman, Neil; Nagel, Joachim H.
Proceedings of the Annual Conference on Engineering in Medicine and Biology. Vol. 13 pt 2. ed. Piscataway, NJ, United States : Publ by IEEE, 1991. p. 793-794.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Influence of signal fidelity on impedance cardiographically-derived values at resting and accelerated heart rates
AU - Hurwitz, Barry
AU - Shyu, Liang Yu
AU - Lu, Chih Cheng
AU - Reddy, Sridhar P.
AU - Schneiderman, Neil
AU - Nagel, Joachim H.
PY - 1991/12/1
Y1 - 1991/12/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=0026390945&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0026390945&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:0026390945
SN - 0780302168
VL - 13
SP - 793
EP - 794
BT - Proceedings of the Annual Conference on Engineering in Medicine and Biology
PB - Publ by IEEE
CY - Piscataway, NJ, United States
ER -