Conference proceeding
A study on methods for impedance cardiography
Proceedings of the 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 'Magnificent Milestones and Emerging Opportunities in Medical Engineering' (Cat. No.97CH36136), v 5, pp 2074-2077 vol.5
1997
Abstract
Impedance Cardiography (ICG) has been developed to measure non-invasively cardiac functions, such as stroke volume (SV) and ventricular ejection time (VET) by the use of maximum change of the first derivative of impedance wave /spl Delta/Z(dZ/dt). A series of conventional signal processing methods were first described briefly, then, a new time-frequency analysis method was introduced in detail. Their advantages and disadvantages were studied and compared. The results showed that the latest method has more advantages in reducing ventilation artifacts and motion noise, resulting in greater accuracy. Moreover, the time-frequency analysis method can extract detail information on the transient impedance signal, which is more precise for the practical case. This method may also be powerful in revealing the insight of signal because of its ability to disclose the intimate relationship between time and frequency by the three dimensional display.
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Details
- Title
- A study on methods for impedance cardiography
- Creators
- Wenjun Hu - Drexel UniversityH.H SunXiang Wang
- Publication Details
- Proceedings of the 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 'Magnificent Milestones and Emerging Opportunities in Medical Engineering' (Cat. No.97CH36136), v 5, pp 2074-2077 vol.5
- Publisher
- IEEE
- Resource Type
- Conference proceeding
- Language
- English
- Other Identifier
- 991019353721204721