BIOSENSE WEBSTER (ISRAEL) LTD.;Meir Bar-Tal;Lior Botzer;Elad Nakar
发明人:
Lior Botzer,Meir Bar-Tal,Elad Nakar
申请号：
IL25375517
公开号：
IL253755D0
申请日:
2017.07.31
申请国别(地区):
IL
年份:
2017
代理人:
摘要：
A method, including receiving a bipolar signal from a pair of electrodes in proximity to a myocardium of a human subject and receiving a unipolar signal from a selected one of the pair of electrodes. The method further includes computing a local unipolar minimum derivative of the unipolar signal, and a time of occurrence of the unipolar minimum derivative. The method also includes computing a bipolar derivative of the bipolar signal, evaluating a ratio of the bipolar derivative to the local unipolar minimum derivative, and when the ratio is greater than a preset threshold ratio value, identifying the time of occurrence as a time of activation of the myocardium.
