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.
• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

systolic time intervals; ECG; polyphysiography; automatic signal analysis

• Wydawca: Łukasiewicz Industrial Research Institute for Automation and Measurements PIAP
• Czasopismo: Journal of Automation Mobile Robotics and Intelligent Systems
• Rocznik: 2012
• Tom: Vol. 6, No. 3
• Strony: 13--16
• Opis fizyczny: Bibliogr. 9 poz., rys.

Twórcy

autor

Strasz A.

autor

Niewiadomski W.

autor

Skupińska M.

autor

Gąsiorowska A.

autor

Laskowska D.

autor

Leonarcik R.

autor

Cybulski G.

• Department of Applied Physiology, Mossakowski Medical Research Centre Polish Academy of Sciences

Bibliografia

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