Yaniv Ben Zriham,Roy Urman,Meir Bar-Tal,Richard P. M. Houben
申请号：
US14574578
公开号：
US09421061B2
申请日:
2014.12.18
申请国别(地区):
US
年份:
2016
代理人:
摘要：
Far field reduction is carried out in a cardiac electrogram by extracting unipolar beats of an intracardiac electrogram that occur within a predetermined time interval that includes QRS peaks, constructing a first mean unipolar beat by averaging the extracted unipolar beats, and accepting unipolar beats that cross-correlate with the first mean unipolar beat. A second mean unipolar beat is constructed from the accepted unipolar beats. A ventricular far field component is determined from the extracted unipolar beats and subtracted from the intracardiac electrogram to distinguish a local component of the intracardiac electrogram.
