- Tytuł:
- Evaluation of volumetric parameters of the ventricular assist device using bioimpedance method
- Autorzy:
-
Sobotnicki, A.
Pałko, T.
Mocha, J.
Czerw, M. - Powiązania:
- https://bibliotekanauki.pl/articles/333273.pdf
- Data publikacji:
- 2012
- Wydawca:
- Uniwersytet Śląski. Wydział Informatyki i Nauki o Materiałach. Instytut Informatyki. Zakład Systemów Komputerowych
- Tematy:
-
sztuczne serce
urządzenia wspomagające pracę komór
metoda bioimpedancji
artificial heart
ventricular assist device (VAD)
stroke volume estimation
bioimpedance method - Opis:
- Volumetric parameters of operation of the pulsatile ventricular assist device (VAD) are the key clinical indicators for the evaluation of adequacy of the process of mechanical heart assistance and ensuring the patient's safety. The bioimpedance method has been proposed to evaluate blood volume changes of the VAD. The method is based on volume electric conductivity of the blood. A change in VAD volume involves changes in impedance. Periodic changes in VAD volume during its operation result in a pulsatile impedance wave; its amplitude in the subperiod of filling and ejection correlates with the volume of blood in the VAD. The paper presents the way of acquisition of the bioimpedance signal. It also presents the results of experimental studies, that were carried out with the use of the flow test stand, and an approach to analysing the bioimpedance signal to evaluate the stroke volume.
- Źródło:
-
Journal of Medical Informatics & Technologies; 2012, 19; 117-123
1642-6037 - Pojawia się w:
- Journal of Medical Informatics & Technologies
- Dostawca treści:
- Biblioteka Nauki