NDLI: A comparative study of abnormal intra QRS potentials and high-frequency components in signal-averaged electrocardiogram

Content Provider	IEEE Xplore Digital Library
Author	Lin, C.C. Hu, W.C.
Copyright Year	2009
Description	Author affiliation: Department of Biomedical Engineering, Chung Yuan Christian University, Chung Li, Taiwan (Hu, W.C.) \|\| Department of Electrical Engineering, National Chin-Yi University of Technology, Taiping, Taiwan (Lin, C.C.)
Abstract	Abnormal intra-QRS potentials (AIQP) have been proposed as a promising new index for evaluating the risk of ventricular arrhythmias. However the clinical results are still inconsistent. Our previous study showed that the mean AIQP parameters of ventricular tachycardia (VT) patients were significantly lower than those of normal subjects. Because several previous studies have reported that myocardial infarction and ischemic heart disease could reduce the high-frequency components within the QRS complex, this study will be devoted to comparing the clinical results of AIQP and high-frequency parameters in the diagnosis of VT, and analyzing whether the reduced AIQPs in VT patients are correlated to the changes in high-frequency components. The study results demonstrated that the reductions of AIQP and high-frequency components in VT patients were consistent, and the correlation coefficients between the AIQP and high-frequency parameters were all significant, and ranged from 0.40 to 0.83 (p≪0.05). In conclusion, the significant correlations between the AIQP and high-frequency parameters imply that the reduced AIQP in VT patients is correlated with the reduction of high-frequency components.
Starting Page	697
Ending Page	700
File Size	168645
Page Count	4
File Format	PDF
ISBN	9781424472819
ISSN	02766547
e-ISBN	9781424472826
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-09-13
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Computers in Cardiology(CinC)
Subject Keyword	Cardiac disease Myocardium Signal analysis Accuracy Optical wavelength conversion Biomedical engineering Delay Autoregressive processes Databases Time domain analysis
Content Type	Text
Resource Type	Article

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A comparative study of abnormal intra QRS potentials and high-frequency components in signal-averaged electrocardiogram

Linear prediction modeling for evaluating abnormal intra QRS potentials in the high-resolution electrocardiogram

A comparative study of abnormal intra qrs potentials and high-frequency components in signal-averaged electrocardiogram.

Prediction error filtering for the extraction of abnormal intra-qrs potentials in signal-averaged electrocardiogram.

Time-frequency mapping of the magnitude squared-coherence for intra-QRS potentials detection

Linear prediction modeling for evaluating abnormal intra qrs potentials in the high-resolution electrocardiogram.

Linear Prediction Modeling for Evaluating Abnormal Intra QRS Potentials in the High-Resolution Electrocardiogram

Prediction error filtering for the extraction of abnormal intra-QRS potentials in signal-averaged electrocardiogram

Automatic optimum order selection of parametric modelling for the evaluation of abnormal intra-QRS signals in signal-averaged electrocardiograms

A comparative study of abnormal intra QRS potentials and high-frequency components in signal-averaged electrocardiogram

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