Atrial Electrograms and the Characterization of Atrial Fibrillation

Alan Varteres Sahakian; Kristina Ropella; Steven Swiryn

doi:10.1016/S0022-0736(10)80033-0

Atrial Electrograms and the Characterization of Atrial Fibrillation

Alan Varteres Sahakian^*, Kristina Ropella, Steven Swiryn

^*Corresponding author for this work

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

An improved method of calculating magnitude-squared coherence spectra on pairs of short-duration electrogram recordings is discussed. This method is based on adaptive signal processing techniques and yields spectra with higher resolution than those obtained using a straightforward direct method. The high-resolution spectra will make it possible to examine the time-varying relationship between activity at two sites during atrial fibrillation and may be useful for quick rhythm characterization by implanted devices or for constructing coherence maps in research studies. Example high-resolution spectra for sinus rhythm, atrial flutter, and atrial fibrillation are presented.

Original language	English (US)
Pages (from-to)	131-133
Number of pages	3
Journal	Journal of Electrocardiology
Volume	24
DOIs	https://doi.org/10.1016/S0022-0736(10)80033-0
State	Published - 1991

Funding

Supported in part by the Dee and Moody Institutional Research Fund and the Irving H. and Sylvia G. Hartman Fund, Evanston, Illinois.

Keywords

atrial fibrillation
defibrillation
magnitude-squared coherence spectrum

ASJC Scopus subject areas

Cardiology and Cardiovascular Medicine

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10.1016/S0022-0736(10)80033-0

Cite this

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title = "Atrial Electrograms and the Characterization of Atrial Fibrillation",

abstract = "An improved method of calculating magnitude-squared coherence spectra on pairs of short-duration electrogram recordings is discussed. This method is based on adaptive signal processing techniques and yields spectra with higher resolution than those obtained using a straightforward direct method. The high-resolution spectra will make it possible to examine the time-varying relationship between activity at two sites during atrial fibrillation and may be useful for quick rhythm characterization by implanted devices or for constructing coherence maps in research studies. Example high-resolution spectra for sinus rhythm, atrial flutter, and atrial fibrillation are presented.",

keywords = "atrial fibrillation, defibrillation, magnitude-squared coherence spectrum",

author = "Sahakian, {Alan Varteres} and Kristina Ropella and Steven Swiryn",

note = "Funding Information: Supported in part by the Dee and Moody Institutional Research Fund and the Irving H. and Sylvia G. Hartman Fund, Evanston, Illinois.",

year = "1991",

doi = "10.1016/S0022-0736(10)80033-0",

language = "English (US)",

volume = "24",

pages = "131--133",

journal = "Journal of Electrocardiology",

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TY - JOUR

T1 - Atrial Electrograms and the Characterization of Atrial Fibrillation

AU - Sahakian, Alan Varteres

AU - Ropella, Kristina

AU - Swiryn, Steven

N1 - Funding Information: Supported in part by the Dee and Moody Institutional Research Fund and the Irving H. and Sylvia G. Hartman Fund, Evanston, Illinois.

PY - 1991

Y1 - 1991

N2 - An improved method of calculating magnitude-squared coherence spectra on pairs of short-duration electrogram recordings is discussed. This method is based on adaptive signal processing techniques and yields spectra with higher resolution than those obtained using a straightforward direct method. The high-resolution spectra will make it possible to examine the time-varying relationship between activity at two sites during atrial fibrillation and may be useful for quick rhythm characterization by implanted devices or for constructing coherence maps in research studies. Example high-resolution spectra for sinus rhythm, atrial flutter, and atrial fibrillation are presented.

AB - An improved method of calculating magnitude-squared coherence spectra on pairs of short-duration electrogram recordings is discussed. This method is based on adaptive signal processing techniques and yields spectra with higher resolution than those obtained using a straightforward direct method. The high-resolution spectra will make it possible to examine the time-varying relationship between activity at two sites during atrial fibrillation and may be useful for quick rhythm characterization by implanted devices or for constructing coherence maps in research studies. Example high-resolution spectra for sinus rhythm, atrial flutter, and atrial fibrillation are presented.

KW - atrial fibrillation

KW - defibrillation

KW - magnitude-squared coherence spectrum

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DO - 10.1016/S0022-0736(10)80033-0

M3 - Article

C2 - 1552243

AN - SCOPUS:0026323579

SN - 0022-0736

VL - 24

SP - 131

EP - 133

JO - Journal of Electrocardiology

JF - Journal of Electrocardiology

ER -

Atrial Electrograms and the Characterization of Atrial Fibrillation

Abstract

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Keywords

ASJC Scopus subject areas

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