Publication details

Acquisition and Pre-Processing Of Action Potentials Optically Recorded From Animal Heart

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Authors

PROVAZNÍK Ivo NOVÁKOVÁ Marie KOZUMPLÍK Jiří VESELÝ Zbyněk BLAHA Milan CHMELAŘ Milan NOVÁKOVÁ Zuzana

Year of publication 2004
Type Article in Proceedings
Conference Analysis of Biomedical Signals and Images
MU Faculty or unit

Faculty of Medicine

Citation
Field Physiology
Keywords action potentials; isolated guinea pig heart; optical recording; voltage-sensitive dye; noise supression
Description The flexible electro-optical recording system, which allows simultaneous recording of electrograms from orthogonal leads and action potentials from an arbitrary site on heart surface, is presented. The recorded action potentials are disturbed with noise from multiple sources. A robust QRS-complex detector with the following modified averaging with filtered residue is proposed. Adding the filtered residue back to the averaged signal helps to keep information on trends in the signal.
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