Methods and systems for enhanced mapping of tissue

Abstract

According to some embodiments, methods and systems of enhancing a map of a targeted anatomical region comprise receiving mapping data from a plurality of mapping electrodes, receiving high-resolution mapping data from a high-resolution roving electrode configured to be moved to locations between the plurality of mapping electrodes, wherein the mapping system is configured to supplement, enhance or refine a map of the targeted anatomical region or to directly create a high-resolution three-dimensional map using the processor receiving the data obtained from the plurality of mapping electrodes and from the high-resolution roving electrode.

What is claimed is: 
     
         1 . A device for obtaining mapping data for a targeted anatomical tissue of a subject, comprising:
 a mapping device including a plurality of mapping electrodes, the plurality of mapping electrodes including at least a first electrode member and a second electrode member coupled with a filtering element, the filtering element being configured to:   allow the simultaneous application of radiofrequency ablation energy from the first electrode member and the second electrode member at a first radiofrequency range; and   allow the first electrode member and the second electrode member to operate as separate electrodes to facilitate mapping at a second frequency range different than the first frequency range.   
     
     
         2 . The device of  claim 1 , wherein the mapping device comprises at least one expandable member, wherein at least one of the plurality of mapping electrodes are positioned along the at least one expandable member. 
     
     
         3 . The device of  claim 1 , wherein the mapping data received from the mapping device comprises at least one from the group consisting of unipolar and bipolar signals. 
     
     
         4 . The device of  claim 1 , further including a processor configured to generate a three-dimensional map at least in part from the mapping data received the mapping device. 
     
     
         5 . The device of  claim 4 , wherein the processor is configured to couple to an output device for displaying a three-dimensional map. 
     
     
         6 . The device of  claim 1 , wherein the filtering element is a capacitor. 
     
     
         7 . The device of  claim 1 , wherein the filtering element is disposed adjacent to the plurality of mapping electrodes. 
     
     
         8 . The device of  claim 1 , wherein the filtering element is separate from the mapping device. 
     
     
         9 . A system for obtaining mapping data for a targeted anatomical tissue of a subject, the system comprising:
 a data acquisition device configured to receive mapping data from a mapping catheter; and   a processor configured to receive mapping data from the data acquisition device and from a separate mapping system, wherein the separate mapping system is configured to operatively couple to the processor, the separate mapping system comprising a plurality of mapping electrodes, the plurality of mapping electrodes including at least a first electrode member and a second electrode member coupled with a filtering element, the filtering element being configured to:   allow the simultaneous application of radiofrequency ablation energy from the first electrode member and the second electrode member at a first radiofrequency range; and   allow the first electrode member and the second electrode member to operate as separate electrodes to facilitate mapping at a second frequency range different than the first frequency range.   
     
     
         10 . The system of  claim 9 , wherein the system is configured to operatively couple to an output device for displaying said three-dimensional map. 
     
     
         11 . The system of  claim 9 , wherein the mapping catheter includes a tip electrode. 
     
     
         12 . The system of  claim 9 , wherein the separate mapping system comprises at least one expandable member, the at least one expandable member comprising at least one of the plurality of mapping electrodes. 
     
     
         13 . The system of  claim 12 , wherein the separate mapping system comprises an expandable basket. 
     
     
         14 . The system of  claim 9 , wherein the processor is configured to align or synchronize data obtained from the mapping catheter and from the separate mapping system. 
     
     
         15 . The system of  claim 9  wherein the processor is separate from the data acquisition device.