Topera, Inc.;THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
发明人:
Sanjiv M. Narayan,Carey Robert Briggs,Ruchir Sehra
申请号：
US15344230
公开号：
US09913615B2
申请日:
2016.11.04
申请国别(地区):
US
年份:
2018
代理人:
摘要：
In a system and method for reconstructing cardiac activation information, an analysis cardiac signal and a reference cardiac signal are accessed and processed to determine a first point of change in the analysis cardiac signal at which a derivative of the analysis cardiac signal diverges with respect to a derivative of the reference cardiac signal. The signals are processed to determine a second point of change in the analysis cardiac signal at which a different derivative of the analysis cardiac signal with respect to a different derivative of the reference cardiac signal. An activation onset time is assigned in the analysis cardiac signal at a point based on a mathematical association among the first point of change and the second point of change to define cardiac activation indicating a beat in the analysis cardiac signal.
