发明名称 |
Algorithms for detecting atrial arrhythmias from discriminatory signatures of ventricular cycle lengths |
摘要 |
Detection of arrhythmias is facilitated using irregularity of ventricular beats measured by delta-RR (DeltaRR) intervals that exhibit discriminatory signatures when plotted in a Lorenz scatter-plot. An "AF signature metric" is established characteristic of episodes of AF that exhibit highly scattered (sparse) distributions or formations of 2-D data points. An "AFL signature metric" is established characteristic of episodes of AFL that exhibit a highly concentrated (clustered) distribution or formation of 2-D data points. A set of heart beat interval data is quantified to generate highly scattered (sparse) formations as a first discrimination metric and highly concentrated (clustered) distributions or formations as a second discrimination metric. The first discrimination metric is compared to the AF signature metric, and/or the second discrimination metric is compared to the AFL signature metric. AF or HFL is declared if the first discrimination metric satisfies either one of the AF signature metric.
|
申请公布号 |
US2004092836(A1) |
申请公布日期 |
2004.05.13 |
申请号 |
US20020292285 |
申请日期 |
2002.11.11 |
申请人 |
MEDTRONIC, INC. |
发明人 |
RITSCHER DAVID E.;SARKAR SHANTANU |
分类号 |
A61B5/0464;A61N1/362;A61N1/39;G06F17/00;G06K9/00;(IPC1-7):A61B5/04 |
主分类号 |
A61B5/0464 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|