Preprocessing and filtration techniques of BSPM signals in a small-scale study

Abstract

Cardiac resynchronization therapy (CRT) is an accepted therapeutic option in heart failure treatment. Before the treatment it is necessary to have sufficient information about electrical and mechanical dyssynchrony at each patient. In a joint project of CTU and University Hospital Motol in Prague, data from several modalities are collected and analyzed. In the paper we focus on data preprocessing from multichannel ECG. In particular, we describe in detail the filtration step, as the original signals were contaminated by various artefacts and noise. The aim is to have the signals as clean as possible and preserving the useful information for the analysis.