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US 2016/0095531 A1Published application
System and method for reconstructing cardiac signals associated with a complex rhythm disorder
AssigneesTopera, Inc., The Regents of the University of California
InventorsSanjiv Narayan, Ruchir Sehra
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Abstract
Reconstruction of cardiac information representing a complex rhythm disorder is facilitated by assigning activation onsets to non-discernible beats in low confidence signals based upon time associations relative to activation onsets in adjacent high confidence signals.
Claims30
A system to reconstruct cardiac signals associated with a complex rhythm disorder received from a plurality of sensors associated spatially with a patient's heart, the system comprising:
- at least one computing device configured to:
- identify a plurality of discernible beats on high-confidence signals of sensors that are spatially adjacent to a sensor associated with a low-confidence signal, the discernible beats on the high-confidence signals corresponding to a non-discernible beat on the low-confidence signal;
- compute a time association between at least two activation onsets associated with the identified discernible beats on the high-confidence signals through the non-discernible beat on the low-confidence signal;
- define a time interval associated with the non-discernible beat about a region of the low-confidence signal where the computed time association crosses the non-discernible beat, the time interval indicating how early the non-discernible beat can activate based on a previous beat on the low-confidence signal that has a selected or determined activation onset and how late the non-discernible beat can terminate based on at least one predetermined property;
- and
- assign an activation onset to the non-discernible beat based on the time association and the time interval.
3 more elements
An assembly to reconstruct cardiac signals associated with a complex rhythm disorder, the assembly comprising:
- a catheter comprising a plurality of sensors spatially associated with a patient's heart to receive the cardiac signals;
- and
- a computer-readable medium operatively coupled to the sensors, the computer-readable medium comprising instructions, which when executed by a computing device, cause the computing device to:
- identify a plurality of discernible beats on high-confidence signals of sensors that are spatially adjacent to a sensor associated with a low-confidence signal, the discernible beats on the high-confidence signals corresponding to a non-discernible beat on the low-confidence signal;
- compute a time association between at least two activation onsets associated with the identified discernible beats on the high-confidence signals through the non-discernible beat on the low-confidence signal;
- define a time interval associated with the non-discernible beat about a region of the low-confidence signal where the computed time association crosses the non-discernible beat, the defined time interval indicating how early the non-discernible beat can activate based on a previous beat on the low-confidence signal that has a selected or determined activation onset and how late the non-discernible beat can terminate based on at least one predetermined property;
- and
- assign an activation onset to the non-discernible beat based on the time association and the time interval.
5 more elements
A method of reconstructing cardiac signals associated with a complex rhythm disorder using a computing device, the computing device:
- receiving cardiac information signals associated with a plurality of sensors spatially related with the patient's heart;
- identifying a plurality of discernible beats on high-confidence signals of sensors that are spatially adjacent to a sensor associated with a low-confidence signal, the discernible beats on the high-confidence signals corresponding to a non-discernible beat on the low-confidence signal;
- computing a time association between at least two activation onsets associated with the identified discernible beats on the high-confidence signals through the non-discernible beat on the low-confidence signal;
- defining a time interval associated with the non-discernible beat about a region of the low-confidence signal where the computed time association crosses the non-discernible beat, the time interval indicating how early the non-discernible beat can activate based on a previous beat on the low-confidence signal that has a selected or determined activation onset and how late the non-discernible beat can terminate based on at least one predetermined property;
- and
- assigning an activation onset to the non-discernible beat based on the time association and the time interval.
3 more elements
Dependencies are inferred from the claim text.