NDLI: Methods for initialization of activation based inverse electrocardiography using graphs derived from heart surface geometry

Content Provider	IEEE Xplore Digital Library
Author	Erem, B. van Dam, P.M. Keely, A. Stinstra, J.G. Oostendorp, T.F. Brooks, D.H.
Copyright Year	2009
Description	Author affiliation: University of Utah, Salt Lake City, USA (Stinstra, J.G.) \|\| Northeastern University, Boston, MA, USA (Erem, B.; Brooks, D.H.) \|\| Nuance Communications, Inc., Burlington, MA, USA (Keely, A.) \|\| Radboud University Medical Centre, Donders Centre for Neuroscience, Nijmegen, NL (van Dam, P.M.; Oostendorp, T.F.)
Abstract	The activation-based inverse problem of electrocardiography is non-linear in the desired activation times. Current solutions rely on iterative algorithms. There is considerable interest in improved initialization approaches due to the importance of the initialization used. Recent efforts include the critical point algorithm of Huiskamp and Green-site and the fastest route algorithm of van Dam, Oostendorp, and van Oosterom. In this work we analyze the relationship between these two methods. We also suggest an alternative to the shortest path approach to represent the set of likely activation patterns that may have computational advantages. We also explore modifications to these two methods exploiting their relationship and using the new activation patterns. We use epicardially stimulated data and geometries, recorded at the Cardiovascular Research and Training Institute in Utah, and geometries and forward matrix supplied with the ECGSim software, to compare results.
Starting Page	189
Ending Page	192
File Size	126412
Page Count	4
File Format	PDF
ISBN	9781424472819
ISSN	02766547
e-ISBN	9781424472826
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-09-13
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Computers in Cardiology(CinC)
Subject Keyword	Electrocardiography Heart Geometry Iterative algorithms Cardiology Timing Inverse problems DH-HEMTs Neuroscience Cities and towns
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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