Method and system for assessing repolarization abnormalities

Details Method and system for assessing repolarization abnormalities Method and system for assessing repolarization abnormalities

2011-03-22

2011-03-22

Manuel, George (Department: 3762)

Surgery

Diagnostic testing

Cardiovascular

Reexamination Certificate

active

07912535

ABSTRACT:
A method for assessing repolarization abnormalities is disclosed. At least two repolarization signals are identified from a set of ECG signals. PCA analysis is performed on the at least two repolarization signals to extract at least eigenvectors ev1and ev2. A maximum vector MV is determined based on a transformed ECG signal in a plane defined by ev1and ev2. A repolarization duration is determined which is based on the maximum vector MV. A system for assessing repolarization abnormalities is also disclosed. The system has a processor configured to determine a repolarization duration which is based on a maximum vector MV from transformed ECG repolarization signals in a plane defined by eigenvectors ev1and ev2which result from PCA analysis on the ECG repolarization signals. The system also has a data input coupled to the processor and a user interface coupled to either the processor or the data input.

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Vaglio et al. “Fractionated Repolarization Induced by Sotalol in Healthy Subjects.” Computers in Cardiology Dec. 1, 2005; 32:523-526.
Vaglio, M., Couderc, JP., Xia, X., Zareba, W., “Fractionated Repolarization Induced by Sotalol in Healthy Subjects.” Computers in Cardiology 2005; 32:523-526.
Vaglio et al., “Fractionated Repolarization Induced by Sotalol in Healthy Subjects,” Computers in Cardiology 32:523-526 (2005).

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