Document Detail


Simultaneous unipolar and bipolar recording of cardiac electrical activity.
MedLine Citation:
PMID:  1370999     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
An analog mapping system using a true bipolar left ventricular balloon electrode array is described, which enables simultaneous unipolar and bipolar recordings. It is an adaptation of a previous clinical analog mapping system used in the investigation of ventricular arrhythmias. The bipolar balloon array consists of 112 electrode pairs, each having a 2-mm separation. The signals from the electrodes are sensed in parallel by separate unipolar and bipolar amplifier units, which then drive a common multiplexer bus. The bipolar recording unit consists of high quality instrumentation amplifiers with adjustable gain and exhibits a full bandwidth minimum common mode rejection of 78 dB. Using this combination, it is possible to record local cardiac micropotentials while still retaining the advantages of unipolar electrograms to track overall cardiac activation.
Authors:
E Sevaptsidis; S Massé; I D Parson; E Downar; S Kimber
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Pacing and clinical electrophysiology : PACE     Volume:  15     ISSN:  0147-8389     ISO Abbreviation:  Pacing Clin Electrophysiol     Publication Date:  1992 Jan 
Date Detail:
Created Date:  1992-03-12     Completed Date:  1992-03-12     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7803944     Medline TA:  Pacing Clin Electrophysiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  45-51     Citation Subset:  IM    
Affiliation:
Department of Medicine, Toronto General Hospital, Canada.
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MeSH Terms
Descriptor/Qualifier:
Balloon Dilatation
Electrocardiography / methods*
Electrodes
Electrophysiology / instrumentation
Equipment Design
Heart Conduction System / physiology*
Humans
Signal Processing, Computer-Assisted*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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