BIOSENSE WEBSTER (ISRAEL) LTD.;MEIR BAR-TAL;ROY URMAN;RICHARD P.M. HOUBEN;YANIV BEN ZRIHAM
发明人:
ROY URMAN,MEIR BAR-TAL,RICHARD P.M. HOUBEN,YANIV BEN ZRIHAM
申请号：
IL24297115
公开号：
IL242971A
申请日:
2015.12.07
申请国别(地区):
IL
年份:
2018
代理人:
摘要：
Far field reduction is carried out in a cardiac electrogram by extracting unipolar beats (48) 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 (54), and accepting unipolar beats that cross-correlate with the first mean unipolar beat (56). A second mean unipolar beat is constructed from the accepted unipolar beats (66). A ventricular far field component is determined from the extracted unipolar beats (70) and subtracted from the intracardiac electrogram to distinguish a local component of the intracardiac electrogram.
