Rate aberrant beat selection and template formation
AssigneeCardiac Pacemakers, Inc.
InventorsBenjamin Ettori, Joseph M. Bocek, Jaeho Kim
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Abstract
A cardiac rhythm management system can be used to detect episode beats associated with cardiac events in a subject's body. These events may be monitored and depolarization morphology information can be derived for candidate arrhythmic beats in an arrhythmia episode. An arrhythmic beat morphology template may be formed from selecting at least one of the candidate arrhythmic beats based upon user's labeling according to specific morphologies of one or more candidate episodes. Methods of use are also presented.
Claims20
A method for discriminating arrhythmias, comprising:
- selecting one or more arrhythmia episodes of an arrhythmia type from a plurality of arrhythmia episodes;
- screening beats of the one or more arrhythmia episodes using specified criteria;
- determining morphology similarity scores each between two beats of the screened beats, including calculating a correlation between the two beats;
- selecting beats from the screened beats using the morphology similarity scores;
- and
- forming an arrhythmic beat morphology template for the arrhythmia type using the selected beats.
A method for discriminating arrhythmias, comprising:
- classifying at least one arrhythmia episode as an arrhythmia type, the at least one arrhythmia episode including a plurality of beats;
- determining morphology similarity scores each between a two beats of the plurality of beats;
- grouping beats of the plurality of beats into one or more groups of morphologically similar beats using the morphology similarity scores;
- selecting a group from the one or more groups;
- and
- forming an arrhythmic beat morphology template for the arrhythmia type using the selected group.
Dependencies are inferred from the claim text.