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RETRACTED ARTICLE: Application of empirical mode decomposition (EMD) for automated identification of congestive heart failure using heart rate signals
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RETRACTED ARTICLE: Application of empirical mode decomposition (EMD) for automated identification of congestive heart failure using heart rate signals
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Journal Article
RETRACTED ARTICLE: Application of empirical mode decomposition (EMD) for automated identification of congestive heart failure using heart rate signals
2017
Overview
Electrocardiogram is widely used to diagnose the congestive heart failure (CHF). It is the primary noninvasive diagnostic tool that can guide in the management and follow-up of patients with CHF. Heart rate variability (HRV) signals which are nonlinear in nature possess the hidden signatures of various cardiac diseases. Therefore, this paper proposes a nonlinear methodology, empirical mode decomposition (EMD), for an automated identification and classification of normal and CHF using HRV signals. In this work, HRV signals are subjected to EMD to obtain intrinsic mode functions (IMFs). From these IMFs, thirteen nonlinear features such as approximate entropy
(
E
ap
x
)
, sample entropy
(
E
s
x
)
, Tsallis entropy
(
E
ts
x
)
, fuzzy entropy
(
E
f
x
)
, Kolmogorov Sinai entropy
(
E
ks
x
)
, modified multiscale entropy
(
E
mms
y
x
)
, permutation entropy
(
E
p
x
)
, Renyi entropy
(
E
r
x
)
, Shannon entropy
(
E
sh
x
)
, wavelet entropy
(
E
w
x
)
, signal activity
(
S
a
x
)
, Hjorth mobility
(
H
m
x
)
, and Hjorth complexity
(
H
c
x
)
are extracted. Then, different ranking methods are used to rank these extracted features, and later, probabilistic neural network and support vector machine are used for differentiating the highly ranked nonlinear features into normal and CHF classes. We have obtained an accuracy, sensitivity, and specificity of 97.64, 97.01, and 98.24 %, respectively, in identifying the CHF. The proposed automated technique is able to identify the person having CHF alarming (alerting) the clinicians to respond quickly with proper treatment action. Thus, this method may act as a valuable tool for increasing the survival rate of many cardiac patients.
Publisher
Springer Science and Business Media LLC,Springer London,Springer Nature B.V
