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Národní úložiště šedé literatury Nalezeno 2 záznamů.  Hledání trvalo 0.01 vteřin. 
Analysis of High-Frequency ECG and Mechano-Electric Coupling in Isolated Heart
 Novotná, Petra ; Ronzhina, Marina (oponent) ; Hejč, Jakub (vedoucí práce)
This master's thesis deals with the analysis of high frequency ECG from the perspective of mechano-electric coupling in isolated rabbit heart. The first part of this thesis is the literature review considering given thematics. It contains information about formation and genesis of ECG and action potential at the chemical and electric level, mechano-electric coupling. The thesis contains the chapter about signal averaging as the technique for gaining the signal-to-noise ratio when analysing HF ECG. In the part of practical application is the knowledge applied to the long recordings of isolated rabbit heart's ECG. There is the description of perfusion system according to Neely included. The realisation consists of data from 15 isolated rabbit hearts to be analysed and explored for the presence of system's reaction to the change of input parameters (preload, afterload) for the case of pressure-volume data. The results have been connected to the similar ones from HF ECG and altogether they create the description of mechano-electric coupling of heart. The reuslts have been statistically tested and evaluated.
Úplný záznam
Analysis of High-Frequency ECG and Mechano-Electric Coupling in Isolated Heart
 Novotná, Petra ; Ronzhina, Marina (oponent) ; Hejč, Jakub (vedoucí práce)
This master's thesis deals with the analysis of high frequency ECG from the perspective of mechano-electric coupling in isolated rabbit heart. The first part of this thesis is the literature review considering given thematics. It contains information about formation and genesis of ECG and action potential at the chemical and electric level, mechano-electric coupling. The thesis contains the chapter about signal averaging as the technique for gaining the signal-to-noise ratio when analysing HF ECG. In the part of practical application is the knowledge applied to the long recordings of isolated rabbit heart's ECG. There is the description of perfusion system according to Neely included. The realisation consists of data from 15 isolated rabbit hearts to be analysed and explored for the presence of system's reaction to the change of input parameters (preload, afterload) for the case of pressure-volume data. The results have been connected to the similar ones from HF ECG and altogether they create the description of mechano-electric coupling of heart. The reuslts have been statistically tested and evaluated.
Úplný záznam

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