Model-Based Evaluation of Methods for Respiratory Sinus Arrhythmia Estimation

Luca Faes, Michele Orini, Carolina Varon, Merel Van Gilst, John Morales, Jonathan Moeyersons, Pablo Armanac, Raquel Bailon, John Fredy Moralestellez, Sabine Van Huffel, Sebastiaan Overeem, Sabine Van Huffel, Johannes Van Dijk

Risultato della ricerca: Articlepeer review

1 Citazioni (Scopus)


Objective: Respiratory sinus arrhythmia (RSA) refers to heart rate oscillations synchronous with respiration, and it is one of the major representations of cardiorespiratory coupling. Its strength has been suggested as a biomarker to monitor different conditions and diseases. Some approaches have been proposed to quantify the RSA, but it is unclear which one performs best in specific scenarios. The main objective of this study is to compare seven state-of-the-art methods for RSA quantification using data generated with a model proposed to simulate and control the RSA. These methods are also compared and evaluated on a real-life application, for their ability to capture changes in cardiorespiratory coupling during sleep. Methods: A simulation model is used to create a dataset of heart rate variability and respiratory signals with controlled RSA, which is used to compare the RSA estimation approaches. To compare the methods objectively in a real-life application, regression models trained on the simulated data are used to map the estimates to the same measurement scale. Results and conclusion: RSA estimates based on cross entropy, time-frequency coherence and subspace projections showed the best performance on simulated data. In addition, these estimates captured the expected trends in the changes in cardiorespiratory coupling during sleep similarly. Significance: An objective comparison of methods for RSA quantification is presented to guide future analyses. Also, the proposed simulation model can be used to compare existing and newly proposed RSA estimates. It is freely accessible online.
Lingua originaleEnglish
pagine (da-a)1882-1893
Numero di pagine12
RivistaIEEE Transactions on Biomedical Engineering
Stato di pubblicazionePublished - 2021

All Science Journal Classification (ASJC) codes

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