QRS Complex Detection in Experimental Orthogonal Electrograms of Isolated Rabbit Hearts

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Authors

KOZUMPLIK Jiri RONZHINA Marina JANOUSEK Oto KOLAROVA Jana NOVÁKOVÁ Marie PROVAZNIK Ivo

Year of publication 2014
Type Article in Proceedings
Conference Computing in Cardiology 2014
MU Faculty or unit

Faculty of Medicine

Citation
Field Physiology
Keywords Orthogonal Electrograms; Rabbit Hearts
Description Automated analysis of HRV and/or QT intervals of isolated rabbit heart electrograms requires reliable detection of QRS complexes. We propose a detection method based on spatial velocity using differentiation of all lead signals, the squaring, the adding and the square root in orders. Teager-Kaiser energy operator was applied after filtering spatial velocity with a standard pass-band filter. The algorithm was tested on 263 orthogonal electrograms. Resulting values of both sensitivity and positive predictive value of detection increased 99.8%.
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