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How to interpret electroanatomic maps

Published:November 08, 2005DOI:https://doi.org/10.1016/j.hrthm.2005.10.032
      Electroanatomic mapping refers to the acquisition and display of electrical information combined with spatial localization. Technologies presently available include both contact and noncontact electroanatomic mapping. This review focuses on the creation and proper interpretation of contact electroanatomic maps, which involves the sequential recording of unipolar or bipolar electrograms with a catheter in contact with the endocardium or epicardium and display of this information on a three-dimensional navigation system. These techniques have become invaluable in the evaluation of complex arrhythmias by providing a spatial catalogue of electrical information. This allows the user to define an area of interest with greater resolution than is possible using fluoroscopy alone and to revisit sites of interest that already have been catalogued.

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