Method and system for constructing an electrophysiology map

Abstract

A method of constructing an EP map is provided. The method comprises obtaining a first surface model of an anatomic structure, the first model comprising an alpha shell of a cloud of location data points. The method further comprises obtaining a second surface model of the structure, the second surface model comprising an alpha shell of a cloud of measurement points. The method further comprises processing the first and second models to identify, for at least one of the location data points, a point on the second surface model that is closest in distance to the location data point, wherein said identified point has a value of said EP parameter associated therewith. The method still further comprises assigning a visual indicator to the location data point based on the EP parameter value associated with the identified point and in accordance with a visualization scheme corresponding to the EP parameter.

1 - 20 . (canceled) 
     
     
         21 . A computer-implemented method, comprising:
 (a) obtaining a geometry surface model of at least a portion of an anatomic structure, the geometry surface model generated from a plurality of location data points;   (b) obtaining an EP map of the portion of the anatomic structure, the EP map comprising a plurality of EP parameter values associated with at least some of the location data points;   (c) rendering and causing to be displayed, for a user, the EP map on the geometry surface model;   (d) acquiring, after (c), additional EP parameters for one or more additional location data points not included in the set;   (e) adding the additional EP parameters to the EP map to yield an updated EP map; and   (f) rendering and causing to be displayed, for the user, the updated EP map on the geometry surface model.   
     
     
         22 . The method of  claim 21 , further comprising repeating (d), (e), and (f) continuously as additional EP parameters are acquired. 
     
     
         23 . The method of  claim 21 , wherein the one or more additional location data points are included in the plurality of location data points. 
     
     
         24 . The method of  claim 21 , wherein the one or more additional location data points are not included in the plurality of location data points, and wherein the method further comprises, after (c), acquiring the additional location data points. 
     
     
         25 . The method of  claim 24 , wherein the additional location data points are acquired contemporaneous with the additional EP parameters. 
     
     
         26 . The method of  claim 21 , wherein the geometry surface model comprises a plurality of geometry surface models, each associated with a respective point in an activity cycle of the anatomic structure. 
     
     
         27 . The method of  claim 26 , wherein the EP map comprises a plurality of EP maps, each associated with a respective point in the activity cycle. 
     
     
         28 . A system comprising:
 an electronic processor; and   a non-transitory computer-readable memory storing instructions that, when executed by the electronic processor, cause the processor to:
 (a) obtain a geometry surface model of at least a portion of an anatomic structure, the geometry surface model generated from a plurality of location data points; 
 (b) obtain an EP map of the portion of the anatomic structure, the EP map comprising a plurality of EP parameter values associated with at least some of the location data points; 
 (c) render and cause to be displayed, for a user, the EP map on the geometry surface model; 
 (d) acquire, after (c), additional EP parameters for one or more additional location data points not included in the set; 
 (e) add the additional EP parameters to the EP map to yield an updated EP map; and 
 (f) render and cause to be displayed, for the user, the updated EP map on the geometry surface model. 
   
     
     
         29 . The system of  claim 28 , wherein the instructions, when executed by the processor, further cause the processor to repeat (d), (e), and (f) continuously as additional EP parameters are acquired. 
     
     
         30 . The system of  claim 28 , wherein the one or more additional location data points are included in the plurality of location data points. 
     
     
         31 . The system of  claim 21 , wherein the one or more additional location data points are not included in the plurality of location data points, wherein the instructions, when executed by the processor, further cause the processor to, after (c), acquire the additional location data points. 
     
     
         32 . The system of  claim 31 , wherein the additional location data points are acquired contemporaneous with the additional EP parameters. 
     
     
         33 . The system of  claim 21 , wherein the geometry surface model comprises a plurality of geometry surface models, each associated with a respective point in an activity cycle of the anatomic structure. 
     
     
         34 . The system of  claim 33 , wherein the EP map comprises a plurality of EP maps, each associated with a respective point in the activity cycle. 
     
     
         35 . A system comprising:
 an elongate medical device comprising one or more electrodes for collecting electrophysiology (EP) data respective of an anatomic structure of a patient; and   a model construction system comprising a processor, the model construction system in electronic communication with the elongate medical device, the model construction system configured to:
 (a) obtain a geometry surface model of at least a portion of the anatomic structure, the geometry surface model generated from a plurality of location data points; 
 (b) obtain an EP map of the portion of the anatomic structure, the EP map comprising a plurality of EP parameter values associated with a set of the location data points; 
 (c) render and cause to be displayed, for a user, the EP map on the geometry surface model; 
 (d) acquire, after (c), additional EP parameters for one or more additional location data points not included in the set, the additional EP parameters measured with the one or more electrodes of the elongate medical device; 
 (e) add the additional EP parameters to the EP map to yield an updated EP map; and 
 (f) render and cause to be displayed, for the user, the updated EP map on the geometry surface model. 
   
     
     
         36 . The system of  claim 35 , wherein the model construction system further comprises a display, wherein the model construction system is configured to cause the EP map and the updated map to be displayed on the display. 
     
     
         37 . The system of  claim 35 , wherein the model construction system is further configured to repeat (d), (e), and (f) continuously as additional EP parameters are measured with the elongate medical device. 
     
     
         38 . The system of  claim 35 , wherein the one or more additional location data points are not included in the plurality of location data points, wherein the model construction system is further configured to, after (c), acquire the additional location data points. 
     
     
         39 . The system of  claim 38 , wherein the additional location data points are measured by the one or more electrodes. 
     
     
         40 . The system of  claim 38 , wherein the additional location data points are acquired contemporaneous with the additional EP parameters.