Method and system to automatically assign map points to anatomical segments and determine mechanical activation time

A system for assigning map points to anatomical segments of a heart, the system comprising:

• a data storage configured to store map points collected by an intravascular mapping tool configured to be inserted into at least one of the endocardial or epicardial space, the mapping tool maneuvered to select locations proximate to surfaces of the heart, while collecting the map points at the select locations to form a region of interest (ROI) data set;
• a landmark module configured to define apical, basal and circumferential landmarks within the ROI data set;
• and
• a processor configured to:
• automatically calculate circumferential and longitudinal segment boundaries relative to the heart, for the ROI data set, based on the apical, basal and circumferential landmarks;
• and
• automatically assign segment identifiers (IDs) to the map points based on locations of the map points relative to the circumferential and longitudinal boundaries, the segment IDs associated with wall segments of the heart.

A method for determining mechanical activation times (MATs) associated with map points of a heart, the method comprising:

• obtaining a ROI data set comprising a plurality of point specific (PS) motion data representative of motion at select map points, the PS motion data for at least a portion of the map points comprising motion components indicative of motion along at least corresponding first and second directions;
• analyzing a component preference characteristic (CPC) to designate at least one of the motion components;
• and
• determining a MAT for a current map point based on the at least one motion component of the PS motion data designated by the CPC in the analyzing operation.

A system for determining mechanical activation times (MATs) associated with map points of a heart, the system comprising:

• a data storage configured to store a ROI data set comprising a plurality of point specific (PS) motion data representative of motion at select map points proximate to the heart, the PS motion data for at least a portion of the map points comprising motion components indicative of motion along at least corresponding first and second directions;
• and
• a processor configured to:
• analyze a component preference characteristic (CPC) to designate at least one of the motion components;
• and
• determine a MAT for a current map point based on the at least one motion component of the PS motion data designated by the CPC in the analyzing operation.