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The meaning of ECG-signal filtration for correct interpretation of recordings performed during diagnostic and therapeutic cardiostimulation

Prochaczek F., Gałecka J., Gibiński P., Skowronek A.

Journal of Medical Informatics & Technologies

2001

Vol. 2, Part. 2

MT41--MT47

The paper presents the results of study on optimizing of ECG-signal filtration in case of ECG recordings during noninvasive transesophageal and transcutaneous diagnostic and therapeutic heart stimulation. The study comprised an effectiveness of hardware-software noninvasive stimulator artifact elimination system applied in electrocardiograph DEK-631 (ITAM – Zabrze) as well as the effectiveness of analogous circuit of spike artefacts elimination applied in recording channel of diagnostic cardiostimulator SP-5plus (ITAM). The influence of filtration on a quality of ECG signal recorded and a possibility of drawing the objective diagnostic conclusions have been assessed. Analogous artifact elimination system (AES) contained in SP-5plus ensured obtaining of good quality of ECG recording during noninvasive stimulation of atria and ventricles in all diagnostic and therapeutic applications.

Evaluation of an analog system for spike artifact elimination in ecg records during transcutaneous stimulation of heart ventricles

Prochaczek F., Gałecka J., Skowronek A.

Prace Naukowe Instytutu Górnictwa Politechniki Wrocławskiej. Konferencje

1999

Vol. 86, nr 24

212-217

The work has been aimed at evaluation of ECG records quality during transcutaneous heart stimulation performed in the three-electrode layout by means of a new analog Artefact-Elimination System (AES) external to the recoder. The transcutaneous ventricular stimulation was performed with the use of noninvasive cardiostimulator NAP-601 (ITAM Zabrze) coupled with transesophageal cardiostimulator SP-5 plus eqipped additionally with the analog AES in ECG recording channel. Efficacy of the system has been evaluated in 15 patients at a duration of artefact elimination equal to 60 and 120 ms. Threshold of ventricular excitation was 47 mA and was located within a range 33 to 80 mA.