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Wyszukujesz frazę "Prochaczek, F." wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Non-invasive electro stimulation technologies for the diagnosis and therapy of coronary artery disease and heart arrhythmias
Autorzy:
Prochaczek, F.
Gałecka, J.
Powiązania:
https://bibliotekanauki.pl/articles/333884.pdf
Data publikacji:
2005
Wydawca:
Uniwersytet Śląski. Wydział Informatyki i Nauki o Materiałach. Instytut Informatyki. Zakład Systemów Komputerowych
Tematy:
kardiostymulacja nieinwazyjna przezskórna
nieinwazyjna diagnostyka i terapia serca
przezprzełykowa stymulacja serca
transcutaneous non-invasive cardiac stimulation
non-invasive heart diagnosis and therapy
transesophageal cardiac stimulation
Opis:
The Centre of Excellence STIMCARD operating within the Institute of Medical Equipment and Technology ITAM develops Polish technologies of transesophageal, transcutaneous and transvenous cardiac stimulation as well as technologies supporting the supervision of patients undergoing electrocardiotherapy, such as in the case of an implanted pacemaker or cardioverter defibrillator. The paper reviews non-invasive electro stimulation techniques, as well as the diagnosis and therapy of the coronary artery disease (CAD) and arrhythmias. As far as CAD is concerned, the paper presents solutions applied in the construction of electrodes and pacemakers intended for both transesophageal and transcutaneous cardiac stimulation tests. The clinical value of the developed cardiac stimulation test has been assessed for the diagnosis of stable cardiac symptoms and management of patients with unstable cardiac disease, as well as for the identification of subjects in danger of sudden cardiac death. The system of stimulated ischemic preconditioning has also been discussed. Also, the paper demonstrates dedicated solutions used in ECG recording channels in the area of diagnosis and treatment of arrhythmias. The solutions make it possible to obtain stable and interpretable recordings during stimulation, both on the surface of the body and in the esophagus. Finally, the paper analyses solutions introduced in pacemakers which make it possible to induce (for diagnostic purposes) and stabilize quick paroxysmal heart arrhythmias, as well as the idea of supported hemodynamics, particularly useful during surgery.
Źródło:
Journal of Medical Informatics & Technologies; 2005, 9; 25-33
1642-6037
Pojawia się w:
Journal of Medical Informatics & Technologies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of current density on the surface of the left atrium during TAS
Autorzy:
Prochaczek, F.
Galecka, J.
Sikora, M.
Glasek, J.
Powiązania:
https://bibliotekanauki.pl/articles/333257.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Śląski. Wydział Informatyki i Nauki o Materiałach. Instytut Informatyki. Zakład Systemów Komputerowych
Tematy:
transesophageal atrial stimulation
TAS
current density
atrial pacing threshold
selective electrodes
omnidirectional electrodes
przezprzełykowa stymulacja przedsionków
wartość progowa stymulacji przedsionkowej
elektrody selektywne
elektrody dookólne
Opis:
Conditions for the indirect transesophageal atrial stimulation (TAS), useful for cardiac diagnosis and treatment, are optimized both by way of clinical experiment and a computer modelling. The paper demonstrates the results of comparison of electric current density, obtained on the surface of the left atrium during computer modelling, with the results of our own experiments. An evaluation was made with the use of spiral CT scanning of the distance between the esophagus and the posterior wall of the left atrium. The average distance in the tested group of 27 subjects was 4.7 ±σ = 1.1 mm. During transesophageal stimulation, we have determined the average excitation threshold of the left atrium, obtaining the value 5.5 ±σ = 1.8 mA in the examined group of 27 patients. The calculated average current density on the surface of left atrium for the selective electrode with point poles used in the experiment amounted to 39.6 μA/mm2. Electric current densities obtained by other researchers by means of computer modelling for omnidirectional and selective ring electrodes turned out to be much lower after adjustment to similar conditions, which was the result of electrically active larger sizes surfaces of the poles of electrodes used in the modelling.
Źródło:
Journal of Medical Informatics & Technologies; 2013, 22; 243-249
1642-6037
Pojawia się w:
Journal of Medical Informatics & Technologies
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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