Physiological signals are often buried in noise. In order to improve the signal-to-noise ratio, the signals are averaged. Signals obtained from the following devices are averaged in this thesis: photo-electric plethysmograph, doppler flowmeter, NMR blood flowmeter, electrocardiograph, and a pump system simulating blood flow on the extracorporeal electromagnetic flowmeter. Since these signals depend on the heart rate and the heart rate of a healthy individual varies even at rest, the signal averaged waveform becomes dispersed. Dispersion in this thesis refers to the broadening of the averaged waveform due to a variable heart rate. Dispersion of the above signals is illustrated and discussed in this thesis. A model of the phenomenon of disper...
This work is situated in the analysis of the arrhythmia rhythm disorders of the heart, and more part...
The thesis deals with the biological data averaging applied to a periodical and repetitive signal, s...
The development and spread of human-centered products that are increasingly simple and affordable ha...
The computation of the average of random signals is addressed in this article. These averaging techn...
The standard way of suppressing movement artefacts in Doppler measurements is by means of a high-pas...
National audienceThe ECG signal digitised with a high resolution level (HR ECG) is a non invasive wa...
The same periodic components are demonstrated for different functions, and at different sites, of th...
Cerebral blood flow monitoring is critical and is carried out routinely in clinical settings. There ...
Femoral pulsatile pressure and flow in anesthetized dogs were measured as time series. The computed ...
The blood flow in human arterial system can be considered as a fluid dynamics problem. Simulation of...
Fast Fourier Transform (FFT) relies on the HRV frequency-domain analysis techniques. It requires re-...
grantor: University of TorontoThis thesis investigates the non-invasive measurement of blo...
Abstract. An improved algorithm for the calculation of ensemble-averaged waveform of a haemodynamica...
The authors have investigated a novel processing technique, which allows to measure possibly relevan...
The signals that originate from the human cardiovascular system were analysed using methods of both ...
This work is situated in the analysis of the arrhythmia rhythm disorders of the heart, and more part...
The thesis deals with the biological data averaging applied to a periodical and repetitive signal, s...
The development and spread of human-centered products that are increasingly simple and affordable ha...
The computation of the average of random signals is addressed in this article. These averaging techn...
The standard way of suppressing movement artefacts in Doppler measurements is by means of a high-pas...
National audienceThe ECG signal digitised with a high resolution level (HR ECG) is a non invasive wa...
The same periodic components are demonstrated for different functions, and at different sites, of th...
Cerebral blood flow monitoring is critical and is carried out routinely in clinical settings. There ...
Femoral pulsatile pressure and flow in anesthetized dogs were measured as time series. The computed ...
The blood flow in human arterial system can be considered as a fluid dynamics problem. Simulation of...
Fast Fourier Transform (FFT) relies on the HRV frequency-domain analysis techniques. It requires re-...
grantor: University of TorontoThis thesis investigates the non-invasive measurement of blo...
Abstract. An improved algorithm for the calculation of ensemble-averaged waveform of a haemodynamica...
The authors have investigated a novel processing technique, which allows to measure possibly relevan...
The signals that originate from the human cardiovascular system were analysed using methods of both ...
This work is situated in the analysis of the arrhythmia rhythm disorders of the heart, and more part...
The thesis deals with the biological data averaging applied to a periodical and repetitive signal, s...
The development and spread of human-centered products that are increasingly simple and affordable ha...