The preliminary study of the EGG and HR examinations

Abstract

Electrogastrographic examination (EGG) can be considered as a non-invasive method for an investigation of a stomach slow wave propagation [1] [2]. The EGG signal is non-invasively captured by appropriately placed electrodes on the surface of the stomach. This paper presents the method for synchronously recording and analyzing both the EGG and the heart rate signal (HR). The HR signal is obtained by analyzing the electrocardiographic signal (ECG). The ECG signal is recorded by means of the same electrodes. This paper also presents the method of reconstruction the respiratory signal (RESPIRO). In this way it is possible to examine mutual interaction among ECG, HR and RESPIRO signal respectively. This paper also depicts the preliminary results of a comparison of the EGG and the RESPIRO signals obtained using two different methods, firstly by classical pass-band filtering, secondary by estimation of the baseline drift.