System and methods for computing activation maps

摘要

Systems and methods can be used to determine activation information for points along a surface or selected region of interest. In one example, a computer-readable medium having computer-executable instructions for performing a method that includes computing a local activation vector based on relative timing among electrical signals corresponding to neighboring points of a plurality of points on a surface envelope. An activation time can be computed for each of the plurality of points as a function of corresponding local activation vectors.

主权项

1. A system comprising:
a non-transitory memory to store electrical signal data representing electrical signals for a plurality of points distributed across a surface on or within a patient's body and machine-readable instructions; and a processor to access the non-transitory memory and execute the machine-readable instructions to at least:
select at least a portion of the plurality of points across the surface;calculate an activation vector for each of the selected plurality of points across the surface based on time delays among respective sets of neighboring signals across the surface according to the electrical signal data for the selected plurality of points;calculate an activation time for each of the selected plurality of points based on the calculated activation vectors; andprovide an output to display a graphical image for the at least the portion of the plurality of points based on the calculated activation times.