Add to ORKGThis study proposes an application of symbolic analysis to beat-to-beat heart rate variability data derived from 24h Holter recordings both in healthy and heart failure populations. Heart rate series are transformed in a sequence of six symbols via a uniform quantization procedure. Symbols are grouped in patterns lasting three cardiac cycles and these patterns are grouped in few (four) families without any loss. The rate of occurrence of these families are found useful to distinguish two physiological conditions characterised by a different status of the autonomic nervous system (i.e. day-time and nigh-time) in healthy subjects and to discriminate between healthy and pathological populations. Indexes derived from symbolic analysis deserve t...
Heart period and QT interval variabilities carry important information about the state of the autono...
We propose an integrated approach based on uniform quantization over a small number of levels for th...
Heart period and QT interval variabilities carry important information about the state of the autono...
This study proposes an application of symbolic analysis to beat-to-beat heart rate variability data ...
Myocardial ischaemia is hypothesized to stimulate the cardiac sympathetic excitatory afferents and, ...
Myocardial ischaemia is hypothesized to stimulate the cardiac sympathetic excitatory afferents and, ...
The analysis of symbolic dynamics applied to physiological time series is able to retrieve informati...
The analysis of symbolic dynamics applied to the RR interval series is able to retrieve information ...
The analysis of heart rate variability is a tool to investigate the autonomic cardiac control and th...
Traditional measures of heart rate variability (HRV) in the time or frequency domain (e.g. standard ...
This paper describes novel fully automated techniques for analyzing large amounts of cardiovascular ...
Background - Sympathetic and parasympathetic systems are considered the principal rapidly reacting s...
<p>(a) Original times series (b) Coarse-grained time series (c) Data symbolization process (d) Histo...
Although symbolic dynamics analysis (SDA) has been proposed for encoding words of different length a...
Two symbolic indexes, the percentage of sequences characterized by three heart periods with no signi...
Heart period and QT interval variabilities carry important information about the state of the autono...
We propose an integrated approach based on uniform quantization over a small number of levels for th...
Heart period and QT interval variabilities carry important information about the state of the autono...
This study proposes an application of symbolic analysis to beat-to-beat heart rate variability data ...
Myocardial ischaemia is hypothesized to stimulate the cardiac sympathetic excitatory afferents and, ...
Myocardial ischaemia is hypothesized to stimulate the cardiac sympathetic excitatory afferents and, ...
The analysis of symbolic dynamics applied to physiological time series is able to retrieve informati...
The analysis of symbolic dynamics applied to the RR interval series is able to retrieve information ...
The analysis of heart rate variability is a tool to investigate the autonomic cardiac control and th...
Traditional measures of heart rate variability (HRV) in the time or frequency domain (e.g. standard ...
This paper describes novel fully automated techniques for analyzing large amounts of cardiovascular ...
Background - Sympathetic and parasympathetic systems are considered the principal rapidly reacting s...
<p>(a) Original times series (b) Coarse-grained time series (c) Data symbolization process (d) Histo...
Although symbolic dynamics analysis (SDA) has been proposed for encoding words of different length a...
Two symbolic indexes, the percentage of sequences characterized by three heart periods with no signi...
Heart period and QT interval variabilities carry important information about the state of the autono...
We propose an integrated approach based on uniform quantization over a small number of levels for th...
Heart period and QT interval variabilities carry important information about the state of the autono...