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Optimal lead configuration in the detection and subtraction of QRS and T wave templates in atrial fibrillation

Waktare, J E P; Hnatkova, K; Meurling, Carl LU ; Nagayoshi, H; Janota, T; Camm, A H and Malik, M (1998) Computers in Cardiology 1998. Annual conference of computers in cardiology In Computers in Cardiology 25. p.629-632
Abstract
An in-house written software package was used to generate templates of QRS complexes and T waves using self-similarity techniques, and leave a residual signal representing only atrial activity. The templating performance differences between individual ECG leads were tested. The mean number of templates in each of the 3 ECG leads was 8±4, 2±1, 7±5 for the QRS complexes, and 11±5, 11±8, 10±5 for the T waves. Lead 2 generated less QRS templates than 2 other leads, left less unmatched QRS complexes and T waves (all p<0.005). The average correlation coefficients between templates were 0.69±0.27, 0.21±0.36, and 0.63±0.27 respectively for QRS complexes, and 0.33±0.24, 0.46±0.31, and 0.50±0.24 respectively for T wave in leads 1, 2, and 3. These... (More)
An in-house written software package was used to generate templates of QRS complexes and T waves using self-similarity techniques, and leave a residual signal representing only atrial activity. The templating performance differences between individual ECG leads were tested. The mean number of templates in each of the 3 ECG leads was 8±4, 2±1, 7±5 for the QRS complexes, and 11±5, 11±8, 10±5 for the T waves. Lead 2 generated less QRS templates than 2 other leads, left less unmatched QRS complexes and T waves (all p<0.005). The average correlation coefficients between templates were 0.69±0.27, 0.21±0.36, and 0.63±0.27 respectively for QRS complexes, and 0.33±0.24, 0.46±0.31, and 0.50±0.24 respectively for T wave in leads 1, 2, and 3. These data suggest that the QRS subtraction process performed well. Lead 2 (a bipolar V5) performed best, but optimal subtraction may require more templates, and hence auto-tuning by the algorithm to the signal encountered. (Less)
Please use this url to cite or link to this publication:
author
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
Computers in Cardiology
volume
25
pages
4 pages
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
conference name
Computers in Cardiology 1998. Annual conference of computers in cardiology
external identifiers
  • Scopus:0347811203
ISBN
0-7803-5200-9
DOI
10.1109/CIC.1998.731952
language
English
LU publication?
no
id
c55ee70b-bd9b-4ebb-bb73-529df75fb95d (old id 1114075)
date added to LUP
2008-07-16 16:01:43
date last changed
2016-10-13 04:43:39
@misc{c55ee70b-bd9b-4ebb-bb73-529df75fb95d,
  abstract     = {An in-house written software package was used to generate templates of QRS complexes and T waves using self-similarity techniques, and leave a residual signal representing only atrial activity. The templating performance differences between individual ECG leads were tested. The mean number of templates in each of the 3 ECG leads was 8±4, 2±1, 7±5 for the QRS complexes, and 11±5, 11±8, 10±5 for the T waves. Lead 2 generated less QRS templates than 2 other leads, left less unmatched QRS complexes and T waves (all p&lt;0.005). The average correlation coefficients between templates were 0.69±0.27, 0.21±0.36, and 0.63±0.27 respectively for QRS complexes, and 0.33±0.24, 0.46±0.31, and 0.50±0.24 respectively for T wave in leads 1, 2, and 3. These data suggest that the QRS subtraction process performed well. Lead 2 (a bipolar V5) performed best, but optimal subtraction may require more templates, and hence auto-tuning by the algorithm to the signal encountered.},
  author       = {Waktare, J E P and Hnatkova, K and Meurling, Carl and Nagayoshi, H and Janota, T and Camm, A H and Malik, M},
  isbn         = {0-7803-5200-9},
  language     = {eng},
  pages        = {629--632},
  publisher    = {ARRAY(0xabec588)},
  series       = {Computers in Cardiology},
  title        = {Optimal lead configuration in the detection and subtraction of QRS and T wave templates in atrial fibrillation},
  url          = {http://dx.doi.org/10.1109/CIC.1998.731952},
  volume       = {25},
  year         = {1998},
}