Intelligent System Based on Impedance Cardiography for Non-invasive Measurement and Diagnosis
Impedance cardiography has become a synonym for indirect assessment of monitoring the stroke volume, cardiac output and other hemodynamic parameters by monitoring the blood volume changes of the body. In this method the changes in the impedance within a certain body segment are recorded as a measure of the physiological changes happening within that segment, thus making it suitable for assessment of physiological parameters. The accurate computer aided diagnosis of the cardiovascular diseases is gaining impetus. Accuracy and non -invasiveness of the diagnostic system have become the need of the hour. This paper presents an intelligent system for measurement of haemodynamic parameters and diagnosis of diseases with the help of impedance cardiography. The vital parameters are calculated with the bioimpedance signals obtained non-invasively along the thorax. For the diagnosis the signals are recorded across the radial artery. The multivariate analysis has been used to obtain a diagnosis index based on various time as well as frequency domain parameters.
KeywordsImpedance cardiography(ICG) Radial artery Haemodynamic Noninvasive Analysis of Variance (ANOVA) Multivariate analysis
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