System and method for reconstructing cardiac activation information
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United States of America Patent
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Mar 13, 2018
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app pub date -
Nov 4, 2016
filing date -
May 2, 2011
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Abstract
In a system and method for reconstructing cardiac activation information, an analysis cardiac signal and a reference cardiac signal are accessed and processed to determine a first point of change in the analysis cardiac signal at which a derivative of the analysis cardiac signal diverges with respect to a derivative of the reference cardiac signal. The signals are processed to determine a second point of change in the analysis cardiac signal at which a different derivative of the analysis cardiac signal with respect to a different derivative of the reference cardiac signal. An activation onset time is assigned in the analysis cardiac signal at a point based on a mathematical association among the first point of change and the second point of change to define cardiac activation indicating a beat in the analysis cardiac signal.
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