INTERBEAT INTERVAL MONITORING AND ECTOPIC BEAT REMOVAL

• US 20130218037A1
• Filed: 03/15/2013
• Published: 08/22/2013
• Est. Priority Date: 08/02/2007
• Status: Abandoned Application

• Current Assignee: The Research Foundation for The State University of New York (State University of New York)
• Original Assignee: The Research Foundation for The State University of New York (State University of New York)
• Inventors: RAEDER, Ernst
• Application Number:
  US13/839,341
• Publication Number:
  US 20130218037A1
• Time in Patent Office: Days
• US Class Current: 600/518
• CPC Class Codes: A61B 5/02405 Determining heart rate variability
• CPC Class Codes: A61B 5/0245 by using sensing means generating electric signals, i.e. ECG signals
• CPC Class Codes: A61B 5/346 Analysis of electrocardiograms
• CPC Class Codes: A61B 5/352 Detecting R peaks, e.g. for synchronising diagnostic apparatus; Estimating R-R interval
• CPC Class Codes: A61B 5/361 Detecting fibrillation
• CPC Class Codes: A61B 5/7203 for noise prevention, reduction or removal
• CPC Class Codes: A61B 8/02 Measuring pulse or heart rate
• CPC Class Codes: A61B 8/5223 for extracting a diagnostic or physiological parameter from medical diagnostic data for algorithms to analyse biomedical images G06T7/0012
• CPC Class Codes: A61B 8/5269 involving detection or reduction of artifacts for image enhancement algorithms G06T5/00

Abstract

Disclosed is an apparatus and method for ambulatory, real-time detection of removal of ectopic beats by obtaining consecutive patient heartbeats, and recognizing an ectopic beat by detecting a signature short-long sequence in an interbeat interval of the obtained heartbeats, with the signature short-long sequence including an ectopic coupling interval followed by a compensatory pause between RR intervals.

Claims

1. A method for removal of ectopic beats, the method comprising:

obtaining consecutive patient heartbeats; and

recognizing an ectopic beat by detecting a signature short-long sequence in an interbeat interval of the obtained heartbeats,

wherein the signature short-long sequence comprises an ectopic coupling interval followed by a compensatory pause between RR intervals.

2. The method of claim 1, wherein ectopic beats and an associated compensatory pause are excluded from the obtained consecutive patient heartbeats to create a clean time series.

3. The method of claim 2, wherein the compensatory pause is longer than the ectopic coupling interval.

4. The method of claim 1, further comprising computing a ratio of RR[i]/RR[i−

1] for each interbeat interval, wherein RR[i] is an ectopic beat interval.

5. The method of claim 4, wherein a sinus rhythm is identified when the computed ratio is near unity.

6. The method of claim 1, wherein a compensatory pause (RR[i+1]) following a premature interbeat interval (RR[i]) is detected by:

RR[i−

1]>

RR[i]<

RR[i+1], and

RR[i]<

RR[i+1]>

RR[i+2],

wherein RR[i] is an ectopic beat interval.

7. The method of claim 1, wherein the consecutive patient heartbeats are obtained from an Atrial fibrillation analysis.