Neadaptivní metody zpracování plodového elektrokardiogramu

Abstract

This thesis deals with non-adaptive methods of processing abdominal fetal electrocardiogram (fECG). Abdominal electrocardiogram (aECG) is composed of a mixture of maternal electrocardiogram (mECG) and fECG. Measured fECG is a carrier of useful information about fetus, i.e. fetal heart rate (fHR), morphological information, etc. First part of this thesis is dedicated to a complex overview dealing with non-adaptive methods of extraction fECG and further developed a proposal describing algorithms of chosen methods. This work focuses primarily on independent component analysis (ICA) and principal component analysis (PCA). A software application was implement for verification of accuracy extraction fECG in this work. The functionality of the proposed system is tested on synthetic and real data from clinical practice. Evaluation of quality of filtration is performed based on the determination of fetal heart rate (fHR) and signal to noise ratio (SNR).