Finding hidden patterns in complex ventricular ectopy

Schulte-Frohlinde, V.  Ashkenazy, Y.  Ivanov, P.  Morley-Davies, A.
Glass, L.  Goldberger, A.  Stanley, H.


This paper appears in: Computers in Cardiology 2000
Publication Date: 2000
On page(s): 335-338
Meeting Date: 09/24/2000 - 09/27/2000
Location: Cambridge, MA, USA
ISBN: 0-7803-6557-7
References Cited: 11
INSPEC Accession Number: 6839905
DOI: 10.1109/CIC.2000.898525
Posted online: 2002-08-06 23:25:30.0

Abstract
There has been much interest in analyzing the temporal organization of
premature ventricular complexes. Different proposed mechanisms predict
specific patterns. So far, these predictions have been mostly tested
by inspecting short data strips. We present a novel method for
representing cardiac time series as long as 24 hours using a temporal
reorganization of the data. Our three dimensional rate-dependent
histograms show the number of intervening beats or the interectopic
time intervals for different sinus RR intervals, an approach that may
be useful to uncover hidden patterns of ectopy and to classify
different dynamics of ectopy