BARDOŇOVÁ, Jana, Marek VYKLICKÝ, Ivo PROVAZNÍK a Marie NOVÁKOVÁ. ECG segment variability during voltage-sensitive dye application in animal heart. Scripta medica. Brno: Faculty of Medicine, Masaryk University, 2005, roč. 78, č. 5, s. 273-280. ISSN 1211-3395. |
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@article{632500, author = {Bardoňová, Jana and Vyklický, Marek and Provazník, Ivo and Nováková, Marie}, article_location = {Brno}, article_number = {5}, keywords = {voltage-sensitive dye di-4-ANEPPS; ECG signal; wavelet analysis; dynamic time warping}, language = {eng}, issn = {1211-3395}, journal = {Scripta medica}, title = {ECG segment variability during voltage-sensitive dye application in animal heart}, volume = {78}, year = {2005} }
TY - JOUR ID - 632500 AU - Bardoňová, Jana - Vyklický, Marek - Provazník, Ivo - Nováková, Marie PY - 2005 TI - ECG segment variability during voltage-sensitive dye application in animal heart JF - Scripta medica VL - 78 IS - 5 SP - 273-280 EP - 273-280 PB - Faculty of Medicine, Masaryk University SN - 12113395 KW - voltage-sensitive dye di-4-ANEPPS KW - ECG signal KW - wavelet analysis KW - dynamic time warping N2 - The optical mapping of action potentials from heart surface has been used extensively as a new possibility of non-invasive recording methods. It employs application of voltage-sensitive dyes(VSDs). Previously, VSDs have been successfully used in myocardial ischemia studies. Our previous Langendorff-perfused heart experiments have suggested shape changes in ECG signals in time and time-frequency domain caused by application of VSD di-4-ANEPPS during optical mapping. These changes went through detailed analysis to reveal impact on particular fractions of a heart cycle. The heart cycle was divided into three parts, corresponding to P-Q segments, QRS complexes, and ST-T segments. Dynamic time warping (DTW) is applied to all marked segments in each experimental period (control, loading, and washout phase). Variability of ECG parts is measured by means of an optimal path resulting from DTW based on minimum distance between the control signal segments (before the application of VSD) and segments recorded in the next two experimental steps. ER -
BARDOŇOVÁ, Jana, Marek VYKLICKÝ, Ivo PROVAZNÍK a Marie NOVÁKOVÁ. ECG segment variability during voltage-sensitive dye application in animal heart. \textit{Scripta medica}. Brno: Faculty of Medicine, Masaryk University, 2005, roč.~78, č.~5, s.~273-280. ISSN~1211-3395.
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