A method for the ECG inverse problem in the frequency domain

Cesar Navarro-Paredes; C Turner; OJ Escalona; C Owens; JMCC Anderson; J Adgey

doi:10.1109/CBMS.2005.12

A method for the ECG inverse problem in the frequency domain

Cesar Navarro-Paredes, C Turner, OJ Escalona, C Owens, JMCC Anderson, J Adgey

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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Abstract

The Inverse ECG problem is ill-conditioned and its solution requires a relatively high computing effort. Additional constraints are required in order to obtain a stable solution. A method is proposed in which the solution of the inverse ECG problem is approached in the frequency domain, taking advantage of the assumption that propagation delays may be ignored and the quasi-periodicity of ECG. In this method usual Tikhonov zero-order constraints are applied to the amplitudes of the signals for a selected frequency domain. This method ensures faster solutions that are spatially and temporally well behaved. Calculation of epicardial electrograms is compared to a basic method.

Original language	English
Title of host publication	Unknown Host Publication
Publisher	IEEE
Pages	309-314
Number of pages	6
ISBN (Print)	0-7695-2355-2
DOIs	https://doi.org/10.1109/CBMS.2005.12
Publication status	Published - 15 Jul 2005
Event	18th IEEE Symposium on Computer-Based Medical Systems; Dublin - Dublin, Ireland Duration: 15 Jul 2005 → …

Conference

Conference	18th IEEE Symposium on Computer-Based Medical Systems; Dublin
Period	15/07/05 → …

Keywords

electrocardiography
inverse problems
medical signal processing
Tikhonov zero-order
constraint
epicardial electrogram
frequency domain
inverse ECG problem
Frequency domain analysis.

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10.1109/CBMS.2005.12

A method for the ECG inverse problem in the frequency domain -IEEE Symp -Dublin -2005Final published version, 336 KB

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title = "A method for the ECG inverse problem in the frequency domain",

abstract = "The Inverse ECG problem is ill-conditioned and its solution requires a relatively high computing effort. Additional constraints are required in order to obtain a stable solution. A method is proposed in which the solution of the inverse ECG problem is approached in the frequency domain, taking advantage of the assumption that propagation delays may be ignored and the quasi-periodicity of ECG. In this method usual Tikhonov zero-order constraints are applied to the amplitudes of the signals for a selected frequency domain. This method ensures faster solutions that are spatially and temporally well behaved. Calculation of epicardial electrograms is compared to a basic method.",

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AU - Owens, C

AU - Anderson, JMCC

AU - Adgey, J

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AB - The Inverse ECG problem is ill-conditioned and its solution requires a relatively high computing effort. Additional constraints are required in order to obtain a stable solution. A method is proposed in which the solution of the inverse ECG problem is approached in the frequency domain, taking advantage of the assumption that propagation delays may be ignored and the quasi-periodicity of ECG. In this method usual Tikhonov zero-order constraints are applied to the amplitudes of the signals for a selected frequency domain. This method ensures faster solutions that are spatially and temporally well behaved. Calculation of epicardial electrograms is compared to a basic method.

KW - electrocardiography

KW - inverse problems

KW - medical signal processing

KW - Tikhonov zero-order

KW - constraint

KW - epicardial electrogram

KW - frequency domain

KW - inverse ECG problem

KW - Frequency domain analysis.

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A method for the ECG inverse problem in the frequency domain

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