Patent Document ID: 10105077
Application ID: 14270186
Patent Status: 1

Claim One:
1. A method for calculating a strain from characterization motion data, the method comprising: utilizing 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 a group of map points at the select locations to form a portion of a point cloud data set during at least one cardiac cycle; utilizing one or more processors, when executing programmable instructions, for: selecting first and second reference locations from the point cloud data set, wherein the first and second reference locations include at least first and second map points, respectively, that are indicative of wall movement at local corresponding surfaces of the heart; determining a reference distance between the first and second reference locations at a pre-defined temporal reference point in time, and an instantaneous distance between the first and second reference locations at a select point in time; calculating a strain characteristic of wall tissue based on the wall movement at the local corresponding surfaces between the first and second reference locations using the formula: ɛ = d - d o d o , wherein d is the instantaneous distance and d 0 is the reference distance; and displaying strain information in connection with identifying a location for lead placement, the strain information representing the strain characteristic of wall tissue located between the first and second reference locations.