Heart graphic display system

Abstract

A system is provided for displaying heart graphic information relating to sources and source locations of a heart disorder to assist in evaluation of the heart disorder. A heart graphic display system provides an intra-cardiogram similarity (“ICS”) graphic and a source location (“SL”) graphic. The ICS graphic includes a grid with the x-axis and y-axis representing patient cycles of a patient cardiogram with the intersections of the patient cycle identifiers indicating similarity between the patient cycles. The SL graphic provides a representation of a heart with source locations indicated. The source locations are identified based on similarity of a patient cycle to library cycles of a library cardiogram of a library of cardiograms.

1 . A method performed by one or more computing systems for presenting information to assist evaluation of an electromagnetic (“EM”) source of a body, the method comprising:
 accessing indications of cycles within EM measurements of an EM field of the EM source;
 for each of a plurality of first cycles of the cycles, 
 for each of a plurality of second cycles of the cycles,
 calculating a similarity score for a pair of cycles that includes that first cycle and that second cycle,
 the similarity score indicating similarity between that first cycle and that second cycle; 
 
 
 
 generating a graphic that provides a non-textual indication of the similarity scores for the pairs of cycles; and
 outputting the graphic to an output device. 
 
 
     
     
         2 . The method of  claim 1  wherein the EM measurements are collected from a person. 
     
     
         3 . The method of  claim 1  wherein the EM measurements are generated based on a computational model that models EM activations of the EM source. 
     
     
         4 . The method of  claim 3  further comprising applying the computational model to perform a simulation that models the EM activations of the EM source and deriving the EM measurements from the modeled EM activations. 
     
     
         5 . The method of  claim 1  wherein the non-textual indications of similarity scores are based on varying a graphic characteristic. 
     
     
         6 . The method of  claim 5  wherein the graphic characteristic is based on color. 
     
     
         7 . The method of  claim 5  wherein the graphic characteristic is based on intensity level. 
     
     
         8 . The method of  claim 1  wherein the graphic includes a map with a first axis representing each cycle and a second axis representing each cycle, and wherein an intersection of a pair of cycles on the map provides the non-textual indication of the similarity score for the pair of cycles. 
     
     
         9 . The method of  claim 8  wherein the graphic further includes a third axis representing similarity score and wherein the non-textual indication of the similarity score for a pair of cycles is based on height along the third axis. 
     
     
         10 . The method of  claim 1  wherein the output device is a display device and further comprising receiving a selection of a pair of cycles and displaying information relating to the selected pair of cycles. 
     
     
         11 - 28 . (canceled) 
     
     
         29 . A method performed by one or more computing system for presenting information to assist evaluation of a condition with a heart of a patient, the method comprising:
 accessing a cardiogram library having library cycles of cardiograms, each library cycle associated with a source location relating to the condition;   calculating similarity scores for library cycles indicating similarity between each library cycle and a patient cycle of a patient cardiogram of the patient;   identifying a source location associated with a target library cycle based on the similarity score of the target library cycle;   generating a graphic that includes a representation of a portion of a heart and a source location indicator located based on the identified source location, the source location indicator with a characteristic that is based on the similarity score associated with the target library cycle; and   outputting the graphic to an output device.   
     
     
         30 . The method of  claim 29  wherein the characteristic is size of the source location indicator that is based on the similarity score. 
     
     
         31 . The method of  claim 30  wherein the source location indicator is a circle and the size indicates the radius of the circle. 
     
     
         32 . The method of  claim 30  wherein a smaller size indicates a higher similarity score. 
     
     
         33 . The method of  claim 29  wherein the characteristic is color. 
     
     
         34 . The method of  claim 29  wherein the source location indicator is a circle and a characteristic is size of the circle and a characteristic is color. 
     
     
         35 . The method of  claim 34  wherein the color of the circle varies from the center of the circle to the circumference of the circle. 
     
     
         36 . The method of  claim 29  wherein the patient cycle is one of a plurality of patient cycles and for each patient cycle, generating a graphic and outputting the graphics in sequence to animate the locations of the source locations. 
     
     
         37 . The method of  claim 29  wherein multiple source locations associated with target library cycles are identified based on the similarity scores of the target library cycles and the graphic includes source location indicators located based on the identified source locations, each source location indicator with a characteristic that is based on the similarity score associated with a target library cycle. 
     
     
         38 . The method of  claim 37  wherein the characteristic is size of the source location indicators, the sizes being based on the similarity scores of the identified library cycles.