A unified procedure for detecting, quantifying, and validating electrocardiogram T-wave alternans.
The precision of T-wave alternans (TWA) quantification depends certainly upon the way we choose to align T-waves and to get feedbacks from the electrocardiogram (ECG) quality. Quantifying the ECG TWA based on assigning automatically the required number of T-waves along with applying a proper T-wave...
| Publicado en: | Medical & Biological Engineering & Computing Vol. 51; no. 9; pp. 1031 - 1043 |
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| Autores principales: | , , |
| Formato: | research Journal Article |
| Publicado: |
Springer Nature
Sep2013
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=104085634&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 104085634 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 01400118 PO0 jtl: Medical & Biological Engineering & Computing issn: 01400118 maglogo: N pubinfo: dt: Sep2013 vid: 51 iid: 9 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 104085634 NLM23695363 2012212867 10.1007/s11517-013-1084-z NLM23695363 104085634 ppf: 1031 ppct: 12 formats: fmt: @attributes: type: P tig: atl: A unified procedure for detecting, quantifying, and validating electrocardiogram T-wave alternans. aug: au: Naseri, H Pourkhajeh, H Homaeinezhad, M R affil: Department of Mechanical Engineering, Faculty of Mechanical Engineering, K.N. Toosi University of Technology, P.O Box 19395-1999, Tehran, Iran, hnaseri@gmx.com. sug: subj: Electrocardiography Methods Signal Processing, Computer Assisted Algorithms Computer Simulation Resource Databases Human Reproducibility of Results ab: The precision of T-wave alternans (TWA) quantification depends certainly upon the way we choose to align T-waves and to get feedbacks from the electrocardiogram (ECG) quality. Quantifying the ECG TWA based on assigning automatically the required number of T-waves along with applying a proper T-wave alignment approach is the purpose of this paper. The structure of the proposed method mainly consists of seven sections: preprocessing, ECG events detection-delineation, alignment of cycles, T-wave template extraction, T-wave delineation, T-wave left- and right-lobes synchronization, and T-wave alternans quantification-detection by getting feedback from ECG quality value. The proposed method is examined in two ways. First, some artificially generated ECGs with predefined TWA patterns and qualities are analyzed in order to regulate the parameters of the method to achieve the maximum performance. Finally, the method is applied to PhysioNet/Computing in Cardiology Challenge 2008 database. In this stage, the achieved accuracy is about 91.0 %, which shows marginal improvement in the area of TWA quantification. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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