Suppression of global activation signals during anatomical mapping
AssigneeBoston Scientific Scimed, Inc.
InventorsBarun Maskara, Shantha Arcot-Krishnamurthy, Pramodsingh H. Thakur, Allan C. Shuros, Sunipa Saha, Shibaji Shome
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Abstract
A method for mapping an anatomical structure includes sensing activation signals of intrinsic physiological activity with a plurality of electrodes disposed in or near the anatomical structure, identifying at least one of the electrodes not in direct contact with the anatomical structure, and adjusting the activation signals sensed by each of the plurality of electrodes based on the activation signals sensed by the identified at least one of the electrodes not in direct contact with the anatomical structure.
Claims20
A method for mapping an anatomical structure, the method comprising:
- sensing activation signals of intrinsic physiological activity with a plurality of electrodes disposed in or near the anatomical structure;
- identifying at least one of the electrodes not in direct contact with the anatomical structure;
- adjusting the activation signals sensed by each of the plurality of electrodes based on the activation signals sensed by the identified at least one of the electrodes not in direct contact with the anatomical structure.
A method for mapping an anatomical structure, the method comprising:
- sensing activation signals of intrinsic physiological activity with a plurality of electrodes disposed in or near the anatomical structure;
- determining a maximum amplitude of the activation signals sensed by each of the electrodes;
- identifying one or more electrodes having activation signals with a lowest maximum amplitude;
- filtering the activation signals with the lowest maximum amplitude from the activation signals sensed by each of the electrodes;
- and
- generating a map of the anatomical structure based on the filtered activation signals.
An anatomical mapping system comprising:
- a plurality of mapping electrodes configured to detect activation signals of intrinsic physiological activity within an anatomical structure, each of the plurality of mapping electrodes having an electrode location and channel;
- and
- a processing system associated with the plurality of mapping electrodes, the mapping processor configured to record the detected activation signals and associate one of the plurality of mapping electrodes with each recorded activation signal, the mapping processor further configured to identify at least one mapping electrode not in direct contact with the anatomical structure, determine a global activation signal from the identified at least one mapping electrode, and determine local activation signals from the recorded activation signals based on the determined global activation signal.
Dependencies are inferred from the claim text.