Adelaide Research & Scholarship
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| Type: | Conference paper |
| Title: | Beat-to-beat QT interval variability in the 12 lead ECG |
| Author: | Hasan, M. Abbott, D. Baumert, M. |
| Citation: | Proceedings of Computing in Cardiology, 2011: pp. 61-64 |
| Publisher: | IEEE |
| Publisher Place: | online |
| Issue Date: | 2011 |
| Series/Report no.: | Computing in Cardiology Conference |
| ISBN: | 9781457706127 |
| ISSN: | 2325-8861 2325-887X |
| Conference Name: | Computing in Cardiology (2011 : Hangzhou, China) |
| Editor: | Murray, A. |
| Statement of Responsibility: | Muhammad A. Hasan, Derek Abbott, Mathias Baumert |
| Abstract: | Beat-to-beat QT interval variability (QTV) is a marker of ventricular repolarization lability. Increased QTV has been associated ith cardiac mortality. The aim of this paper was to investigate QTV in the 12-lead ECG and the potential effect of age. Short-term ECGs (2 mins) of 48 healthy males ere studied. Beat-to-beat QTV as measured in each lead by using Berger's template-stretching algorithm. We observed significant differences in QTV of different leads (ANOVA test: p < 0.0001). In addition, e investigated the effect of age by dichotomizing the data set based on the median age. Two-ay ANOVA showed no significant differences in QTV of older males compared to younger males. In conclusion, the magnitude of QTV depends on the lead selected for measurement. |
| Rights: | Copyright the authors. |
| Grant ID: | http://purl.org/au-research/grants/arc/DP 110102049 |
| Appears in Collections: | Aurora harvest 5 Electrical and Electronic Engineering publications |
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