Method and apparatus for monitoring T-wave alternans
An implantable medical device and associated method assess T-wave alternans by sensing a cardiac electrogram (EGM) signal and selecting a pair of consecutive T-wave signals from the EGM signal. A first amplitude and a second amplitude from each of the consecutive T-wave signals are determined. The differences between the first amplitudes and the second amplitudes of the consecutive T-wave signal pairs are used to compute a T-wave alternans metric.
Medtronic, Inc.
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A61N A61B A61B
additional inventional additional
Jeffrey M. Xiaohong
Gillberg Zhou