Method for determining local activation direction in the atrium

Adam T. Schoenwald*, Alan Varteres Sahakian, Steven Swiryn

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


This paper presents a method for determining local 3-dimensional activation directions in human atria. We 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.

Original languageEnglish (US)
Pages (from-to)1-2
Number of pages2
JournalAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
Issue numberpt 1
StatePublished - Dec 1 1994

ASJC Scopus subject areas

  • Bioengineering

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