St. Jude Medical, Cardiology Division, Inc.

Emma K Davis

Don Curtis Deno

Dennis J Morgan

Thomas P Hartley

Mark Hagfors

Electrophysiological activity can be mapped using sub-intervals of electrophsyiological signals. An electroanatomical mapping system receives a plurality of electrophsyiological signals (), each of which spans an activation interval. For each signal, the system identifies an initial event time within the activation interval, such as by identifying a time of maximum signal energy (), and defines a sub-interval about the initial event time (). The system then analyzes the sub-interval to identify one or more electrophysiological characteristics of the electrophysiological signal () and adds a corresponding electrophysiology data point to an electrophysiology map (). Advantageously, the sub-interval can extend outside of the activation interval, such that the instant teachings allow for capture and analysis of deflections that occur at or near the boundaries of the activation interval.

System and method for cardiac mapping

Systems and methods for generating and displaying an electrophysiology (EP) map are provided. A system includes a device including at least one sensor configured to collect a set of location data points, and a computer-based model construction system coupled to the device and configured to generate a geometry surface model from the set of location data points, associate an EP parameter with each of a plurality of points on the geometry surface model to generate an EP map, calculate a confidence metric for the EP parameter associated with each point, and display the EP map based on the calculated confidence metrics.

Growing community of inventors

Saint Paul, MN, United States of America

Emma K Davis