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Reconstruction of instantaneous phase of unipolar atrial contact electrogram using a concept of sinusoidal recomposition and Hilbert transform

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Reconstruction of instantaneous phase of unipolar atrial contact electrogram using a concept of sinusoidal recomposition and Hilbert transform. / Kuklik, Pawel; Zeemering, Stef; Maesen, Bart; Maessen, Jos; Crijns, Harry J; Verheule, Sander; Ganesan, Anand N; Schotten, Ulrich.

In: IEEE T BIO-MED ENG, Vol. 62, No. 1, 01.2015, p. 296-302.

Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review

Harvard

Kuklik, P, Zeemering, S, Maesen, B, Maessen, J, Crijns, HJ, Verheule, S, Ganesan, AN & Schotten, U 2015, 'Reconstruction of instantaneous phase of unipolar atrial contact electrogram using a concept of sinusoidal recomposition and Hilbert transform', IEEE T BIO-MED ENG, vol. 62, no. 1, pp. 296-302. https://doi.org/10.1109/TBME.2014.2350029

APA

Kuklik, P., Zeemering, S., Maesen, B., Maessen, J., Crijns, H. J., Verheule, S., Ganesan, A. N., & Schotten, U. (2015). Reconstruction of instantaneous phase of unipolar atrial contact electrogram using a concept of sinusoidal recomposition and Hilbert transform. IEEE T BIO-MED ENG, 62(1), 296-302. https://doi.org/10.1109/TBME.2014.2350029

Vancouver

Kuklik P, Zeemering S, Maesen B, Maessen J, Crijns HJ, Verheule S et al. Reconstruction of instantaneous phase of unipolar atrial contact electrogram using a concept of sinusoidal recomposition and Hilbert transform. IEEE T BIO-MED ENG. 2015 Jan;62(1):296-302. https://doi.org/10.1109/TBME.2014.2350029

Bibtex

@article{14ff6052f9f74d108cf7d4a10d06b54e,
title = "Reconstruction of instantaneous phase of unipolar atrial contact electrogram using a concept of sinusoidal recomposition and Hilbert transform",
abstract = "The Hilbert transform has been used to characterize wave propagation and detect phase singularities during cardiac fibrillation. Two mapping modalities have been used: optical mapping (used to map atria and ventricles) and contact electrode mapping (used only to map ventricles). Due to specific morphology of atrial electrograms, phase reconstruction of contact electrograms in the atria is challenging and has not been investigated in detail. Here, we explore the properties of Hilbert transform applied to unipolar epicardial electrograms and devise a method for robust phase reconstruction using the Hilbert transform. We applied the Hilbert transform to idealized unipolar signals obtained from analytical approach and to electrograms recorded in humans. We investigated effects of deflection morphology on instantaneous phase. Application of the Hilbert transform to unipolar electrograms demonstrated sensitivity of reconstructed phase to the type of deflection morphology (uni- or biphasic), the ratio of R and S waves and presence of the noise. In order to perform a robust phase reconstruction, we propose a signal transformation based on the recomposition of the electrogram from sinusoidal wavelets with amplitudes proportional to the negative slope of the electrogram. Application of the sinusoidal recomposition transformation prior to application of the Hilbert transform alleviates the effect of confounding features on reconstructed phase. ",
keywords = "Algorithms, Atrial Fibrillation/diagnosis, Diagnosis, Computer-Assisted/methods, Electrophysiologic Techniques, Cardiac/methods, Humans, Numerical Analysis, Computer-Assisted, Reproducibility of Results, Sensitivity and Specificity, Signal Processing, Computer-Assisted",
author = "Pawel Kuklik and Stef Zeemering and Bart Maesen and Jos Maessen and Crijns, {Harry J} and Sander Verheule and Ganesan, {Anand N} and Ulrich Schotten",
year = "2015",
month = jan,
doi = "10.1109/TBME.2014.2350029",
language = "English",
volume = "62",
pages = "296--302",
journal = "IEEE T BIO-MED ENG",
issn = "0018-9294",
publisher = "IEEE Computer Society",
number = "1",

}

RIS

TY - JOUR

T1 - Reconstruction of instantaneous phase of unipolar atrial contact electrogram using a concept of sinusoidal recomposition and Hilbert transform

AU - Kuklik, Pawel

AU - Zeemering, Stef

AU - Maesen, Bart

AU - Maessen, Jos

AU - Crijns, Harry J

AU - Verheule, Sander

AU - Ganesan, Anand N

AU - Schotten, Ulrich

PY - 2015/1

Y1 - 2015/1

N2 - The Hilbert transform has been used to characterize wave propagation and detect phase singularities during cardiac fibrillation. Two mapping modalities have been used: optical mapping (used to map atria and ventricles) and contact electrode mapping (used only to map ventricles). Due to specific morphology of atrial electrograms, phase reconstruction of contact electrograms in the atria is challenging and has not been investigated in detail. Here, we explore the properties of Hilbert transform applied to unipolar epicardial electrograms and devise a method for robust phase reconstruction using the Hilbert transform. We applied the Hilbert transform to idealized unipolar signals obtained from analytical approach and to electrograms recorded in humans. We investigated effects of deflection morphology on instantaneous phase. Application of the Hilbert transform to unipolar electrograms demonstrated sensitivity of reconstructed phase to the type of deflection morphology (uni- or biphasic), the ratio of R and S waves and presence of the noise. In order to perform a robust phase reconstruction, we propose a signal transformation based on the recomposition of the electrogram from sinusoidal wavelets with amplitudes proportional to the negative slope of the electrogram. Application of the sinusoidal recomposition transformation prior to application of the Hilbert transform alleviates the effect of confounding features on reconstructed phase.

AB - The Hilbert transform has been used to characterize wave propagation and detect phase singularities during cardiac fibrillation. Two mapping modalities have been used: optical mapping (used to map atria and ventricles) and contact electrode mapping (used only to map ventricles). Due to specific morphology of atrial electrograms, phase reconstruction of contact electrograms in the atria is challenging and has not been investigated in detail. Here, we explore the properties of Hilbert transform applied to unipolar epicardial electrograms and devise a method for robust phase reconstruction using the Hilbert transform. We applied the Hilbert transform to idealized unipolar signals obtained from analytical approach and to electrograms recorded in humans. We investigated effects of deflection morphology on instantaneous phase. Application of the Hilbert transform to unipolar electrograms demonstrated sensitivity of reconstructed phase to the type of deflection morphology (uni- or biphasic), the ratio of R and S waves and presence of the noise. In order to perform a robust phase reconstruction, we propose a signal transformation based on the recomposition of the electrogram from sinusoidal wavelets with amplitudes proportional to the negative slope of the electrogram. Application of the sinusoidal recomposition transformation prior to application of the Hilbert transform alleviates the effect of confounding features on reconstructed phase.

KW - Algorithms

KW - Atrial Fibrillation/diagnosis

KW - Diagnosis, Computer-Assisted/methods

KW - Electrophysiologic Techniques, Cardiac/methods

KW - Humans

KW - Numerical Analysis, Computer-Assisted

KW - Reproducibility of Results

KW - Sensitivity and Specificity

KW - Signal Processing, Computer-Assisted

U2 - 10.1109/TBME.2014.2350029

DO - 10.1109/TBME.2014.2350029

M3 - SCORING: Journal article

C2 - 25148659

VL - 62

SP - 296

EP - 302

JO - IEEE T BIO-MED ENG

JF - IEEE T BIO-MED ENG

SN - 0018-9294

IS - 1

ER -