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A method for the ECG inverse problem in the frequency domain

Navarro-Paredes, Cesar, Turner, C, Escalona, OJ, Owens, C, Anderson, JMCC and Adgey, J (2005) A method for the ECG inverse problem in the frequency domain. In: 18th IEEE Symposium on Computer-Based Medical Systems; Dublin, Dublin, Ireland. Institute of Electrical and Electronics Engineers (IEEE). 6 pp. [Conference contribution]

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URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=1467708

DOI: 10.1109/CBMS.2005.12

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.

Item Type:Conference contribution (Paper)
Keywords:electrocardiography; inverse problems; medical signal processing; Tikhonov zero-order; ; constraint; epicardial electrogram; frequency domain; inverse ECG problem; Frequency domain analysis.
Faculties and Schools:Faculty of Computing & Engineering
Faculty of Computing & Engineering > School of Engineering
Research Institutes and Groups:Engineering Research Institute
Engineering Research Institute > Nanotechnology & Integrated BioEngineering Centre (NIBEC)
ID Code:30028
Deposited By: Professor Omar Escalona
Deposited On:08 Feb 2016 14:22
Last Modified:08 Feb 2016 14:22

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