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The study presents a novel method for 3D mapping of atrial activation directions, revealing sudden transitional behavior in endocardial activation linking during atrial fibrillation.
Presents a method for determining local 3-dimensional activation directions in human atria. The authors describe the measuring catheter used, the filtering of the raw signals, the detection of electrograms, and finally the calculation of the resultant vector which estimates local activation direction. This technique is then used to demonstrate that transient "linking" of endocardial activation during atrial fibrillation exhibits sudden, not gradual, transitional behavior.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
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Schoenwald et al. (2002) studied this question.
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