SYSTEM AND METHOD FOR RECONSTRUCTING CARDIAC ACTIVATION INFORMATION
First Claim
1. A method of processing cardiac activation information, the method comprising:
- accessing a first cardiac signal and a second cardiac signal obtained from a patient;
processing the first cardiac signal and the second cardiac signal to determine whether there is a point of change in the first cardiac signal at which a derivative of the first cardiac signal diverges with respect to a derivative of the second cardiac signal above a threshold; and
assigning an activation onset time in the first cardiac signal at the point of change to define a cardiac activation if the point of change is in the first cardiac signal.
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Abstract
An example system and method of processing cardiac activation information are disclosed. The method includes accessing a first cardiac signal and a second cardiac signal obtained from a patient. The first cardiac signal and the second cardiac signal are processed to determine whether there is a point of change in the first cardiac signal at which a derivative of the first cardiac signal diverges with respect to a derivative of the second cardiac signal above a threshold. An activation onset time is assigned in the first cardiac signal at the point of change to define a cardiac activation if the point of change is in the first cardiac signal.
27 Citations
33 Claims
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1. A method of processing cardiac activation information, the method comprising:
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accessing a first cardiac signal and a second cardiac signal obtained from a patient; processing the first cardiac signal and the second cardiac signal to determine whether there is a point of change in the first cardiac signal at which a derivative of the first cardiac signal diverges with respect to a derivative of the second cardiac signal above a threshold; and assigning an activation onset time in the first cardiac signal at the point of change to define a cardiac activation if the point of change is in the first cardiac signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A system to process cardiac activation information, the system comprising:
at least one computing device to; access a first cardiac signal and a second cardiac signal obtained from a patient; process the first cardiac signal and the second cardiac signal to determine whether there is a point of change in the first cardiac signal at which a derivative of the first cardiac signal diverges with respect to a derivative of the second cardiac signal above a threshold; and assign an activation onset time in the first cardiac signal at the point of change to define a cardiac activation if the point of change is in the first cardiac signal. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
Specification