SELECTABLE HEART SOUND TRACKING IN HEART FAILURE

Abstract: systems and methods for recognizing and tracking heart sound components are disclosed. an exemplary medical-device system includes a data receiver to receive heart sound information, and a heart sound recognition circuit to generate a representative heart sound segment such as an ensemble average of a selected portion of heart sound segments. the heart sound recognition circuit recognizes a heart sound component from the representative heart sound segment using a time-based tracking algorithm, and evaluates a performance index of the time-based heart sound tracking algorithm. based on the performance index, a decision can be made whether or not to switch to a spectral-based tracking algorithm to recognize the heart sound component from the representative heart sound segment. a physiologic event detector can detect a cardiac event using the recognized heart sound component.

Inventor(s): Mojgan Goftari, Viktoria A. Averina, Jonathan Bennett Shute

CPC Classification: A61B5/024 (Detecting, measuring or recording pulse rate or heart rate (, take precedence))

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