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