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Titolo:
Enhancing the precision of ECG baseline correction: Selective filtering and removal of residual error
Autore:
Shusterman, V; Shah, SI; Beigel, A; Anderson, KP;
Indirizzi:
Univ Pittsburgh, UPHS, Cardiovasc Inst, Pittsburgh, PA 15213 USA Univ Pittsburgh Pittsburgh PA USA 15213 sc Inst, Pittsburgh, PA 15213 USA
Titolo Testata:
COMPUTERS AND BIOMEDICAL RESEARCH
fascicolo: 2, volume: 33, anno: 2000,
pagine: 144 - 160
SICI:
0010-4809(200004)33:2<144:ETPOEB>2.0.ZU;2-4
Fonte:
ISI
Lingua:
ENG
Soggetto:
LINE WANDER;
Keywords:
electrocardiogram; baseline wander; selective filtering; residual error;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
22
Recensione:
Indirizzi per estratti:
Indirizzo: Shusterman, V Univ Pittsburgh, UPHS, Cardiovasc Inst, Pittsburgh, PA 15213USA Univ Pittsburgh Pittsburgh PA USA 15213 burgh, PA 15213 USA
Citazione:
V. Shusterman et al., "Enhancing the precision of ECG baseline correction: Selective filtering and removal of residual error", COMPUT BIOM, 33(2), 2000, pp. 144-160

Abstract

Reemergence of the problem of baseline correction is related to recent advancements in the electrocardiographic (ECG) analysis of brat-to-beat repolarization changes which play an important role in risk assessment and the prediction of sudden cardiac death. These alterations often have an amplitudeof a few microvolts and duration of several milliseconds and their detection requires special accuracy of baseline estimation. Using detailed analysis of various types of residual errors we designed a two-step procedure for selective filtering of ECG and removal of residual error with minimal distortion of cardiac complexes and tested this approach on 100 simulated and 210 real ECG signals. Application of this procedure provided a twofold reduction in the error of baseline estimation and T-wave amplitude measurements compared to high-pass filtering. Selective application of this approach to the segments with low baseline drift allowed analysis of low-amplitude, beat-to-beat changes in repolarization during more than 70% of the recording time, (C) 2000 Academic Press.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 07/07/20 alle ore 06:21:08