A method for the ECG inverse problem in the frequency domain

C Navarro; C Turner; OJ Escalona; C Owens; JMCC Anderson; AAJ Adgey

A method for the ECG inverse problem in the frequency domain

C Navarro, C Turner, OJ Escalona, C Owens, JMCC Anderson, AAJ Adgey

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

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
Pages	309-314
Number of pages	6
Publication status	Published - 2005
Event	18th IEEE Symposium on Computer-Based Medical Systems, Proceedings - Dublin, Ireland Duration: 1 Jan 2005 → …

Publication series

Name	COMPUTER-BASED MEDICAL SYSTEMS : PROCEEDINGS OF THE ANNUAL IEEE SYMPOSIUM

Conference

Conference	18th IEEE Symposium on Computer-Based Medical Systems, Proceedings
Period	1/01/05 → …

Keywords

epicardial potentials map
ECG inverse problem
ECG frequency analysis
cardiac mapping

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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.",

keywords = "epicardial potentials map, ECG inverse problem, ECG frequency analysis, cardiac mapping",

author = "C Navarro and C Turner and OJ Escalona and C Owens and JMCC Anderson and AAJ Adgey",

note = "18th IEEE Symposium on Computer-Based Medical Systems, Dublin, IRELAND, JUN 23-24, 2005; 18th IEEE Symposium on Computer-Based Medical Systems, Proceedings ; Conference date: 01-01-2005",

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T1 - A method for the ECG inverse problem in the frequency domain

AU - Navarro, C

AU - Turner, C

AU - Escalona, OJ

AU - Owens, C

AU - Anderson, JMCC

AU - Adgey, AAJ

N1 - 18th IEEE Symposium on Computer-Based Medical Systems, Dublin, IRELAND, JUN 23-24, 2005

PY - 2005

Y1 - 2005

N2 - 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.

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 - epicardial potentials map

KW - ECG inverse problem

KW - ECG frequency analysis

KW - cardiac mapping

M3 - Conference contribution

T3 - COMPUTER-BASED MEDICAL SYSTEMS : PROCEEDINGS OF THE ANNUAL IEEE SYMPOSIUM

SP - 309

EP - 314

BT - Unknown Host Publication

T2 - 18th IEEE Symposium on Computer-Based Medical Systems, Proceedings

Y2 - 1 January 2005

ER -