- Tytuł:
- Event detection in ECG, carotid pulse, phonocardiogram, and detection of consecutive systolic time intervals
- Autorzy:
-
Strasz, A.
Niewiadomski, W.
Skupińska, M.
Gąsiorowska, A.
Laskowska, D.
Leonarcik, R.
Cybulski, G. - Powiązania:
- https://bibliotekanauki.pl/articles/384357.pdf
- Data publikacji:
- 2012
- Wydawca:
- Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
- Tematy:
-
systolic time intervals
ECG
polyphysiography
automatic signal analysis - Opis:
- We developed a program which allows measurement of consecutive time intervals between chosen events in ECG, carotid pulse, and phonocardiogram. Currently it is possible to determine following systolic time intervals (STI): PEP - pre-ejection period, Q-S2 – time between trough of Q wave and aortic valve closure, Q-D - time between trough of Q wave and dicrotic notch, S2-D - time between aortic valve closure and dicrotic notch, as well as QQ interval. Measurements were performed on 30 young, healthy subjects. Subjects were supine, they performed two-minute isometric handgrip (HG) twice. First HG was followed by four-minute rest, second HG by two-minute occlusion of the working arm. Preliminary analyses revealed: 1/ the QQ interval changes were reflected weakly or not at all in changes of STI, 2/ shortening of QQ during handgrip was paralleled by slight decrease of Q-D and Q-S2, 3/ during occlusion, when QQ intervals returned to baseline also Q-D and Q-S2 returned to baseline, despite sustained elevation of arterial pressure, 4/ there were distinct oscillation in the time course of Q-S2 intervals, time course of Q-D intervals was relatively smooth, thus S2 and D may reflect different events contrary to common notation.
- Źródło:
-
Journal of Automation Mobile Robotics and Intelligent Systems; 2012, 6, 3; 13-16
1897-8649
2080-2145 - Pojawia się w:
- Journal of Automation Mobile Robotics and Intelligent Systems
- Dostawca treści:
- Biblioteka Nauki
Artykuł