Ventricular arrhythmia localisation by computer processing of fragmented cardiac myopotentials

B. S. Sharif, D. T. Thomson, E. G. Chester, R. W.F. Campbell, S. S. Furniss

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Accurate localisation of arrhythmogenic origin is necessary for successful surgery on patients with ventricular arrhythmias, and fragmentation mapping is one of the principal techniques used intraoperatively for this purpose. Fragmentation mapping is normally based on subjective characterisation of fragmented cardiac myopotentials. These fragmented electrograms are an important feature of arrhythmogenic scar and have been used with moderate success to direct surgery. However, very little is known or understood about fragmented electrograms. The aim of our study is to produce a fragmentation mapping system based on the automated classification of electrograms. Therefore, the two main issues that are addressed are the extraction of electrograms from recorded and occasionally noisy signals and evaluating the characteristics applicable to discriminating between normal and abnormal electrograms. The output of the fragmentation mapping system is in the form of a graphical map representing 53 grid positions on the left ventricular epicardium. This will provide a useful tool that will potentially localise the arrhythmogenic origin more rapidly than manual schemes, thus allowing a more effective treatment of arrhythmias.

Original languageBritish English
Title of host publicationComputers in Cardiology
Pages141-144
Number of pages4
StatePublished - 1993
EventProceedings of the 1993 Conference on Computers in Cardiology - London, UK
Duration: 5 Sep 19938 Sep 1993

Publication series

NameComputers in Cardiology
ISSN (Print)0276-6574

Conference

ConferenceProceedings of the 1993 Conference on Computers in Cardiology
CityLondon, UK
Period5/09/938/09/93

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