Access Restriction

Author Carlson, J. ♦ Holmqvist, F. ♦ Olsson, S.B. ♦ Platonov, P.G.
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©2007
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science ♦ Technology ♦ Medicine & health
Subject Keyword Atrial fibrillation ♦ Electrodes ♦ Electrocardiography ♦ Rhythm ♦ Signal analysis ♦ Strontium ♦ Data mining ♦ Signal processing ♦ Hospitals ♦ Clinical trials
Abstract ECGs were recorded from three electrodes attached at the corners of an equilateral triangle positioned around the location of electrode V1. The atrial signal between QRST complexes was subjected to correlation function analysis to reveal differences in activation times between the electrode sites. The time differences found were used to calculate the direction of activation across the body surface. Twenty-three subjects were studied during sinus rhythm (SR), intraoperatively confirmed typical and reverse typical atrial flutter, or during paroxysmal or permanent atrial fibrillation (AF). Subjects studied during SR and patients with typical atrial flutter exhibited a uniform direction of activation, with the main vector pointing downwards. The propagation of atrial activation during permanent AF did not show a consistent direction, while patients with paroxysmal AF exhibited more uniform activation vectors, corresponding to the direction observed in patients with atrial flutter.
Description Author affiliation: Dept. of Clinical Sci., Lund Univ., Lund (Carlson, J.; Holmqvist, F.; Olsson, S.B.; Platonov, P.G.)
ISBN 9781424425334
ISSN 02766547
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2007-09-30
Publisher Place USA
Rights Holder Computers in Cardiology(CinC)
Size (in Bytes) 1.40 MB
Page Count 4
Starting Page 277
Ending Page 280

Source: IEEE Xplore Digital Library