Počet záznamů: 1
Causality between the Amplitude and Frequency of Cardiac Oscillations
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SYSNO ASEP 0105222 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve SCOPUS Název Causality between the Amplitude and Frequency of Cardiac Oscillations Překlad názvu Kauzalita mezi amplitudou a frekvencí srdečních oscilací Tvůrce(i) Paluš, Milan (UIVT-O) RID, SAI, ORCID
Stefanovska, A. (CZ)
Veber, M. (SI)Zdroj.dok. Cardiovascular Engineering: an international journal - ISSN 1567-8822
Roč. 4, č. 2 (2004), s. 127-132Poč.str. 6 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova causality ; cardiac frequency ; systolic pressure ; information theory ; mutual information ; synchronization ; direction of driving Vědní obor RIV BB - Aplikovaná statistika, operační výzkum CEZ AV0Z1030915 - UIVT-O EID SCOPUS 3042682189 Anotace Using an information-theoretic approach, causality between the systolic amplitude in blood pressure and the frequency of the heart beat was analyzed. Blood pressure and ECG were noninvasively recorded in young, healthy subjects. Three successive measurements were performed: during spontaneous breathing and during paced respiration-at frequencies both higher and lower than that of spontaneous respiration. We demonstrate that the amplitude and frequency of the cardiac rhythm are synchronized for most of the time. The synchronization is stronger during paced respiration at a frequency lower than that of spontaneous breathing. Episodes where the cardiac frequency was driven by the systolic pressure were also detected during slow, paced respiration. Pracoviště Ústav informatiky Kontakt Tereza Šírová, sirova@cs.cas.cz, Tel.: 266 053 800 Rok sběru 2005
Počet záznamů: 1