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Non-invasive assessment of direction of right atrial activation during atrial fibrillation using correlation function analysis.

Carlson, Jonas LU ; Holmqvist, Fredrik LU ; Olsson, Bertil LU and Platonov, Pyotr LU (2007) In Computers in Cardiology 34. p.277-280
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... (More)
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. (Less)
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organization
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type
Contribution to journal
publication status
published
subject
in
Computers in Cardiology
volume
34
pages
277 - 280
publisher
Computers in Cardiology
external identifiers
  • wos:000264173100070
  • scopus:62949186709
ISSN
0276-6574
language
English
LU publication?
yes
id
c588ebb5-e1ac-4b74-8c0e-d0ce2956e1cb (old id 1143367)
alternative location
http://cinc.mit.edu/archives/2007/pdf/0277.pdf
date added to LUP
2008-07-30 12:46:40
date last changed
2017-01-01 06:55:52
@article{c588ebb5-e1ac-4b74-8c0e-d0ce2956e1cb,
  abstract     = {ECGs were recorded from three electrodes attached at<br/><br>
the corners of an equilateral triangle positioned around<br/><br>
the location of electrode V1. The atrial signal between<br/><br>
QRST complexes was subjected to correlation function<br/><br>
analysis to reveal differences in activation times between<br/><br>
the electrode sites. The time differences found were used<br/><br>
to calculate the direction of activation across the body<br/><br>
surface. Twenty-three subjects were studied during sinus<br/><br>
rhythm (SR), intraoperatively confirmed typical and reverse<br/><br>
typical atrial flutter, or during paroxysmal or permanent<br/><br>
atrial fibrillation (AF).<br/><br>
Subjects studied during SR and patients with typical<br/><br>
atrial flutter exhibited a uniform direction of activation,<br/><br>
with the main vector pointing downwards. The propagation<br/><br>
of atrial activation during permanent AF did not show<br/><br>
a consistent direction, while patients with paroxysmal AF<br/><br>
exhibited more uniform activation vectors, corresponding<br/><br>
to the direction observed in patients with atrial flutter.},
  author       = {Carlson, Jonas and Holmqvist, Fredrik and Olsson, Bertil and Platonov, Pyotr},
  issn         = {0276-6574},
  language     = {eng},
  pages        = {277--280},
  publisher    = {Computers in Cardiology},
  series       = {Computers in Cardiology},
  title        = {Non-invasive assessment of direction of right atrial activation during atrial fibrillation using correlation function analysis.},
  volume       = {34},
  year         = {2007},
}