Iranian Journal of Electrical & Electronic Engineering
IJEEE
Engineering & Technology
http://ijeee.iust.ac.ir
18
agent2
1735-2827
2383-3890
10.22068/IJEEE
en
jalali
1389
12
1
gregorian
2011
3
1
7
1
online
1
fulltext
en
A Unified Framework for Delineation of Ambulatory Holter ECG Events via Analysis of a Multiple-Order Derivative Wavelet-Based Measure
4-Biomedical Signal Processing
Biomedical Signal Processing
Research Paper
Research Paper
In this study, a new long-duration holter electrocardiogram (ECG) major events detection-delineation algorithm is described which operates based on the false-alarm error bounded segmentation of a decision statistic with simple mathematical origin. To meet this end, first three-lead holter data is pre-processed by implementation of an appropriate bandpass finite-duration impulse response (FIR) filter and also by calculation of the Euclidean norm between corresponding samples of three leads. Then, a trous discrete wavelet transform (DWT) is applied to the resulted norm and an unscented synthetic measure is calculated between some obtained dyadic scales to magnify the effects of low-power waves such as P or T-waves during occurrence of arrhythmia(s). Afterwards, a uniform length window is slid sample to sample on the synthetic scale and in each slid, six features namely as summation of the nonlinearly amplified Hilbert transform, summation of absolute first order differentiation, summation of absolute second order differentiation, curve length, area and variance of the excerpted segment are calculated. Then all feature trends are normalized and superimposed to yield the newly defined multiple-order derivative wavelet based measure (MDWM) for the detection and delineation of ECG events. In the next step, a α-level Neyman-Pearson classifier (which is a false-alarm probability-FAP controlled tester) is implemented to detect and delineate QRS complexes. To show advantages of the presented method, it is applied to MIT-BIH Arrhythmia Database, QT Database, and T-Wave Alternans Database and as a result, the average values of sensitivity and positive predictivity Se = 99.96% and P+ = 99.96% are obtained for the detection of QRS complexes, with the average maximum delineation error of 5.7 msec, 3.8 msec and 6.1 msec for P-wave, QRS complex and T-wave, respectively showing marginal improvement of detection-delineation performance. In the next step, the proposed method is applied to DAY hospital high resolution holter data (more than 1,500,000 beats including Bundle Branch Blocks-BBB, Premature Ventricular Complex-PVC and Premature Atrial Complex-PAC) and average values of Se=99.98% and P+=99.97% are obtained for QRS detection. In summary, marginal performance improvement of ECG events detection-delineation process in a widespread values of signal to noise ratio (SNR), reliable robustness against strong noise, artifacts and probable severe arrhythmia(s) of high resolution holter data and the processing speed 163,000 samples/sec can be mentioned as important merits and capabilities of the proposed algorithm.
ECG Detection-Delineation, First-Order Derivative, Second-Order Derivative, Discrete Wavelet Transform, Multi Lead Analysis, Hilbert transform, curve length, variance, Neyman-Pearson Hypothesis Test, False Alarm Probability
1
18
http://ijeee.iust.ac.ir/browse.php?a_code=A-10-32-4&slc_lang=en&sid=en
M. R.
Homaeinezhad
mrezahomaei@yahoo.com
`180031947532846001611`

180031947532846001611
Yes
A.
Ghaffari
ghaffari@kntu.ac.ir
`180031947532846001612`

180031947532846001612
No
H.
Najjaran Toosi
hamid.toosi@gmail.com
`180031947532846001613`

180031947532846001613
No
M.
Tahmasebi
mrezahomaei@yahoo.com
`180031947532846001614`

180031947532846001614
No
M. M.
Daevaeiha
m_davaeiha@yahoo.com
`180031947532846001615`

180031947532846001615
No