Coherence analysis of multichannel epicardial electrograms for quantification of organization during ventricular fibrillation

Samir S. Shah; Peng Wie Hsia; Ralph J. Damiano

Coherence analysis of multichannel epicardial electrograms for quantification of organization during ventricular fibrillation

Samir S. Shah, Peng Wie Hsia, Ralph J. Damiano

Research output: Contribution to journal › Conference article › peer-review

Abstract

A new method, which uses Magnitude-Squared Coherence (MSC) spectrums between unipolar electrograms recorded from the epicardial surface, is presented to characterize the organization of electrical activity in the myocardial muscles. In a canine study, unipolar electrograms were recorded from 112 epicardial sites during both Normal Sinus Rhythm (NSR) and Ventricular Fibrillation (VF). As a result, average coherence at dominant frequencies during NSR was found to be 0.92 ± 0.01, and during VF 0.41 ± 0.03. Further, the average MSC between electrograms from two sites was found to decrease with increasing distance during NSR and VF.

Original language	English
Pages (from-to)	13-14
Number of pages	2
Journal	Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
Volume	16
Issue number	pt 1
State	Published - 1994
Event	Proceedings of the 16th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Part 1 (of 2) - Baltimore, MD, USA Duration: Nov 3 1994 → Nov 6 1994

Cite this

@article{b0b6a900e73a4c379aed6450c18979f1,

title = "Coherence analysis of multichannel epicardial electrograms for quantification of organization during ventricular fibrillation",

abstract = "A new method, which uses Magnitude-Squared Coherence (MSC) spectrums between unipolar electrograms recorded from the epicardial surface, is presented to characterize the organization of electrical activity in the myocardial muscles. In a canine study, unipolar electrograms were recorded from 112 epicardial sites during both Normal Sinus Rhythm (NSR) and Ventricular Fibrillation (VF). As a result, average coherence at dominant frequencies during NSR was found to be 0.92 ± 0.01, and during VF 0.41 ± 0.03. Further, the average MSC between electrograms from two sites was found to decrease with increasing distance during NSR and VF.",

author = "Shah, {Samir S.} and Hsia, {Peng Wie} and Damiano, {Ralph J.}",

year = "1994",

language = "English",

volume = "16",

pages = "13--14",

journal = "Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings",

issn = "0589-1019",

number = "pt 1",

note = "Proceedings of the 16th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Part 1 (of 2) ; Conference date: 03-11-1994 Through 06-11-1994",

}

Coherence analysis of multichannel epicardial electrograms for quantification of organization during ventricular fibrillation. / Shah, Samir S.; Hsia, Peng Wie; Damiano, Ralph J.
In: Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings, Vol. 16, No. pt 1, 1994, p. 13-14.

Research output: Contribution to journal › Conference article › peer-review

TY - JOUR

T1 - Coherence analysis of multichannel epicardial electrograms for quantification of organization during ventricular fibrillation

AU - Shah, Samir S.

AU - Hsia, Peng Wie

AU - Damiano, Ralph J.

PY - 1994

Y1 - 1994

N2 - A new method, which uses Magnitude-Squared Coherence (MSC) spectrums between unipolar electrograms recorded from the epicardial surface, is presented to characterize the organization of electrical activity in the myocardial muscles. In a canine study, unipolar electrograms were recorded from 112 epicardial sites during both Normal Sinus Rhythm (NSR) and Ventricular Fibrillation (VF). As a result, average coherence at dominant frequencies during NSR was found to be 0.92 ± 0.01, and during VF 0.41 ± 0.03. Further, the average MSC between electrograms from two sites was found to decrease with increasing distance during NSR and VF.

AB - A new method, which uses Magnitude-Squared Coherence (MSC) spectrums between unipolar electrograms recorded from the epicardial surface, is presented to characterize the organization of electrical activity in the myocardial muscles. In a canine study, unipolar electrograms were recorded from 112 epicardial sites during both Normal Sinus Rhythm (NSR) and Ventricular Fibrillation (VF). As a result, average coherence at dominant frequencies during NSR was found to be 0.92 ± 0.01, and during VF 0.41 ± 0.03. Further, the average MSC between electrograms from two sites was found to decrease with increasing distance during NSR and VF.

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M3 - Conference article

AN - SCOPUS:0028745263

SN - 0589-1019

VL - 16

SP - 13

EP - 14

JO - Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings

JF - Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings

IS - pt 1

T2 - Proceedings of the 16th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Part 1 (of 2)

Y2 - 3 November 1994 through 6 November 1994

ER -

Coherence analysis of multichannel epicardial electrograms for quantification of organization during ventricular fibrillation

Abstract

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