Title :
New signal processing techniques for improved reliability of impedance cardiography
Author :
Shyu, L.Y. ; Reddy, S.P. ; Nagel, J.H. ; Schneiderman, N.
Author_Institution :
Dept. of Biomed. Eng., Psychol. & Med., Miami Univ., Coral Gables, FL, USA
Abstract :
Different techniques have been developed for parameter extraction and segmentation of the impedance cardiogram for improved reliability and precision of beat-to-beat determination of systolic time intervals, stroke volume, and related cardiac indices. The solutions presented improve on previous techniques by: (1) substantially reducing jitter in the localization of events within the cardiac cycle; (2) providing exact determination of signal amplitudes even in the presence of artifacts and interference signals; and (3) eliminating the influence of respiratory signal modulation on parameter extraction.<>
Keywords :
cardiology; signal processing; cardiac indices; events localisation; impedance cardiography reliability; jitter reduction; parameter extraction; respiratory signal modulation; signal processing techniques; stroke volume; systolic time intervals;
Conference_Titel :
Engineering in Medicine and Biology Society, 1988. Proceedings of the Annual International Conference of the IEEE
Conference_Location :
New Orleans, LA, USA
Print_ISBN :
0-7803-0785-2
DOI :
10.1109/IEMBS.1988.94395
