Open AccessAutocorrelation of Ventricular Response in Atrial Fibrillation
Author(s) -
John R. Braunstein,
Ernst K. Franke
Publication year - 1961
Publication title -
circulation research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 4.899
H-Index - 336
eISSN - 1524-4571
pISSN - 0009-7330
DOI - 10.1161/01.res.9.2.300
Subject(s) - autocorrelation , autocorrelation technique , exponential function , trigonometric functions , ventricular fibrillation , cardiology , mathematics , ventricular function , medicine , mathematical analysis , statistics , geometry
The autocorrelation function of the ventricular electrocardiogram was calculated on an IBM-650 computer. The resulting function can lie fitted by an exponential-cosine function. This result is typical for a mixture of periodic and unperiodic events. For different patients, various degrees of periodicity were put in evidence by this method on a quantitative basis; the ventricular response was never completely irregular. In all cases investigated so far, the period that corresponds to the periodic component of the autocorrelation function was more rapid than the average rate of ventricular conduction.
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