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The aim of this study was to evaluate potential changes in the electrodermal activity (EDA) to enable the detection of variations in the sympathetic nervous system during mental load and recovery period. Several EDA parameters were used: SCA (skin conductance amplitude), frequency of NS-EDR (nonspecific electrodermal responses), SIE (symbolic information entropy), and ApEn (approximate entropy). The...
Cardiovascular diseases are a serious problem in the world. Early diagnosis of heart disease leads to minimization of deaths. Electrocardiography (ECG) is often the only indicator of pathological heart process. The analysis of electrocardiogram patterns and cardiac frequency is used for detecting arrhythmias and discovering the nature of disease. A Holter monitor is used for continuously monitoring...
The cardiovascular disease is a serious problem in the world. The early diagnosis of heart disease leads to minimization of deaths. The analysis of electrocardiogram (ECG) patterns and cardiac frequency is used for detecting arrhythmias and discovering the nature of disease‥ In many cases patients encounter heart problems (pain, sudden change of heart beat) but no longer have an ECG device and/or...
This paper describes design and testing of bioelectrical measurement by capacity electrodes. The advantage of this measurement type lies in an indirect-contact between the electrode surface and skin and movement artifact protection. The measurement is easier and more comfortable since capacitively coupled electrodes eliminate the need for conductive gel and direct skin contact with the electrodes...
The cardioverter therapy has an indispensable role in the therapy of many cardiac diseases. The service life of implantable cardiac stimulators is several years. The period of their correct and guaranteed functionality is limited by the battery service-life. The cardiac stimulator battery status can be checked by means of a programmer, which is offered by the manufacturer. This solution is rather...
Computer tomography (CT) and magnetic resonance imaging (MR, MRI) are modern and valuable diagnostic methods in a wide range of medical applications. Their significant advantage lies in the ability to image individual slices of the patient. The presented article details our software allowing the viewing of individual slices, slice reconstruction in various projections, detailed analysis of slices...
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