Systems and methods for ablating tissue

An intra-cardiac voltage display system comprising:

• a data processing device system;
• an input-output device system communicatively connected to the data processing device system;
• and
• a memory device system communicatively connected to the data processing device system and storing a program executable by the data processing device system,
• wherein the data processing device system is configured by the program at least to:
• receive intra-cardiac voltage data via the input-output device system, the intra-cardiac voltage data sampled by an electrode over a period of time comprising a plurality of cardiac cycles;
• identify a respective occurrence of a particular cardiac event in each of the plurality of cardiac cycles;
• identify, for each respective one of the plurality of cardiac cycles, a respective first portion of the intra-cardiac voltage data sampled during the respective one of the plurality of cardiac cycles, each respective first portion of the intra-cardiac voltage data identified in accordance with a predetermined temporal relationship with the respective occurrence of the particular cardiac event identified in the respective one of the plurality of cardiac cycles;
• identify, for each respective one of the plurality of cardiac cycles, a particular portion of the intra-cardiac voltage data sampled during the respective one of the plurality of cardiac cycles as an excludable portion of the intra-cardiac voltage data sampled by the electrode during the respective one of the plurality of cardiac cycles, each identified excludable portion of the intra-cardiac voltage data comprising some but not all of the intra-cardiac voltage data sampled by the electrode during the respective one of the plurality of cardiac cycles;
• derive, for each respective one of the plurality of cardiac cycles, a respective one of a plurality of data sets at least in part from a respective second portion of the intra-cardiac voltage data sampled by the electrode during the respective one of the plurality of cardiac cycles, each respective one of the plurality of data sets derived only from particular data that excludes the identified excludable portion of the intra-cardiac voltage data sampled by the electrode during the respective one of the plurality of cardiac cycles;
• and
• cause the input-output device system to concurrently display the plurality of data sets.

An intra-cardiac voltage data display method executed by a data processing device system according to a program stored by a memory device system communicatively connected to the data processing device system, the data processing device system further communicatively connected to an input-output device system, and the method comprising:

• receiving intra-cardiac voltage data via the input-output device system, the intra-cardiac voltage data sampled by an electrode over a period of time comprising a plurality of cardiac cycles;
• identifying a respective occurrence of a particular cardiac event in each of the plurality of cardiac cycles;
• identifying, for each respective one of the plurality of cardiac cycles, a respective first portion of the intra-cardiac voltage data sampled during the respective one of the plurality of cardiac cycles, each respective first portion of the intra-cardiac voltage data identified in accordance with a predetermined temporal relationship with the respective occurrence of the particular cardiac event identified in the respective one of the plurality of cardiac cycles;
• identifying, for each respective one of the plurality of cardiac cycles, a particular portion of the intra-cardiac voltage data sampled during the respective one of the plurality of cardiac cycles as an excludable portion of the intra-cardiac voltage data sampled by the electrode during the respective one of the plurality of cardiac cycles, each identified excludable portion of the intra-cardiac voltage data comprising some but not all of the intra-cardiac voltage data sampled by the electrode during the respective one of the plurality of cardiac cycles;
• deriving, for each respective one of the plurality of cardiac cycles, a respective one of a plurality of data sets at least in part from a respective second portion of the intra-cardiac voltage data sampled by the electrode during the respective one of the plurality of cardiac cycles, each respective one of the plurality of data sets derived only from particular data that excludes the identified excludable portion of the intra-cardiac voltage data sampled by the electrode during the respective one of the plurality of cardiac cycles;
• and
• causing the input-output device system to concurrently display the plurality of data sets.

One or more non-transitory computer-readable storage mediums storing a program executable by one or more data processing devices of a data processing device system communicatively connected to an input-output device system, the program comprising:

• data reception instructions configured to cause reception of intra-cardiac voltage data via the input-output device system, the intra-cardiac voltage data sampled by an electrode over a period of time comprising a plurality of cardiac cycles;
• cardiac event identification instructions configured to identify a respective occurrence of a particular cardiac event in each of the plurality of cardiac cycles;
• data identification instructions configured to identify, for each respective one of the plurality of cardiac cycles, a respective first portion of the intra-cardiac voltage data sampled during the respective one of the plurality of cardiac cycles, each respective first portion of the intra-cardiac voltage data identified in accordance with a predetermined temporal relationship with the respective occurrence of the particular cardiac event identified in the respective one of the plurality of cardiac cycles;
• excludable data identification instructions configured to identify, for each respective one of the plurality of cardiac cycles, a particular portion of the intra-cardiac voltage data sampled during the respective one of the plurality of cardiac cycles as an excludable portion of the intra-cardiac voltage data sampled by the electrode during the respective one of the plurality of cardiac cycles, each identified excludable portion of the intra-cardiac voltage data comprising some but not all of the intra-cardiac voltage data sampled by the electrode during the respective one of the plurality of cardiac cycles;
• data derivation instructions configured to derive, for each respective one of the plurality of cardiac cycles, a respective one of a plurality of data sets at least in part from a respective second portion of the intra-cardiac voltage data sampled by the electrode during the respective one of the plurality of cardiac cycles, each respective one of the plurality of data sets derived only from particular data that excludes the identified excludable portion of the intra-cardiac voltage data sampled by the electrode during the respective one of the plurality of cardiac cycles;
• and
• display instructions configured to cause the input-output device system to concurrently display the plurality of data sets.