A new approach for analysis of heart rate variability and QT variability in long-term ECG recording.
Published
Journal Article
With the emergence of long-term electrocardiogram (ECG) recordings that extend several days beyond the typical 24-48 h, the development of new tools to measure heart rate variability (HRV) and QT variability is needed to utilize the full potential of such extra-long-term ECG recordings.In this report, we propose a new nonlinear time-frequency analysis approach, the concentration of frequency and time (ConceFT), to study the HRV QT variability from extra-long-term ECG recordings. This approach is a generalization of Short Time Fourier Transform and Continuous Wavelet Transform approaches.As proof of concept, we used 14-day ECG recordings to show that the ConceFT provides a sharpened and stabilized spectrogram by taking the phase information of the time series and the multitaper technique into account.The ConceFT has the potential to provide a sharpened and stabilized spectrogram for the heart rate variability and QT variability in 14-day ECG recordings.
Full Text
Duke Authors
Cited Authors
- Wu, H-T; Soliman, EZ
Published Date
- May 3, 2018
Published In
Volume / Issue
- 17 / 1
Start / End Page
- 54 -
PubMed ID
- 29720178
Pubmed Central ID
- 29720178
Electronic International Standard Serial Number (EISSN)
- 1475-925X
International Standard Serial Number (ISSN)
- 1475-925X
Digital Object Identifier (DOI)
- 10.1186/s12938-018-0490-8
Language
- eng