System and method for processing and presenting arrhythmia information to facilitate heart arrhythmia identification and treatment

• US 7,907,996 B2
• Filed: 04/23/2007
• Issued: 03/15/2011
• Est. Priority Date: 11/26/2003
• Status: Active Grant

• Current Assignee: Cardionet LLC (Koninklijke Philips N.V.)
• Original Assignee: Cardionet Incorporated
• Inventors: Prystowsky, Eric N., Korzinov, Lev, Denis, Scott, Jaime, Manuel E., Baumann, Eric, James, Justin
• Primary Examiner(s): Getzow; Scott M
• Application Number:
  US11/739,037
• Publication Number:
  US 20070191723A1
• Time in Patent Office: 1,422 Days
• Field of Search: 600508-523
• US Class Current: 600/523
• CPC Class Codes: A61B 5/0006 ECG or EEG signals
• CPC Class Codes: A61B 5/0245 by using sensing means generating electric signals, i.e. ECG signals
• CPC Class Codes: A61B 5/339 Displays specially adapted therefor
• CPC Class Codes: A61B 5/361 Detecting fibrillation
• CPC Class Codes: A61B 5/7246 using correlation, e.g. template matching or determination of similarity
• CPC Class Codes: A61B 5/7282 Event detection, e.g. detecting unique waveforms indicative of a medical condition A61B5/4094, A61B5/4818, A61B5/349, A61B5/0823 take precedence
• CPC Class Codes: A61B 5/742 using visual displays A61B5/339 takes precedence

Abstract

A system and method for presenting information relating to heart data can involve operations including identifying arrhythmia events in physiological data obtained for a living being, receiving human assessments of at least a portion of the arrhythmia events, determining a measure of correlation between the human assessments and the identified events, and selectively presenting information regarding the identified events based on the measure of correlation. The operations can also include identifying atrial fibrillation events in physiological data obtained for a living being, obtaining heart rate data for the living being, and presenting information regarding the heart rate data and duration of the atrial fibrillation events together with a common time scale to pictographically represent heart rate trend with atrial fibrillation burden during a defined time period.

Claims

1. A machine-implemented method comprising:

identifying atrial fibrillation events in physiological data obtained for a living being, wherein identifying atrial fibrillation events comprises examining the physiological data in multiple time intervals, and identifying intervals in which at least one atrial fibrillation event has occurred;

obtaining heart rate data for the living being;

receiving a human assessment of a subset of the identified atrial fibrillation events; and

based on the human assessment of the subset of the identified atrial fibrillation events, pictographically presenting, using a common time scale, information regarding the heart rate data for the multiple time intervals during a defined time period in alignment with indications of atrial fibrillation activity for the identified intervals, according to the identified atrial fibrillation events, during the defined time period such that heart rate trend is presented with atrial fibrillation burden, wherein pictographically presenting information regarding the heart rate data comprises displaying for each of the multiple time intervals a range of heart rates and a heart rate average.

2. The method of claim 1,

further comprising determining that the identified atrial fibrillation events are valid when a threshold percentage of the identified atrial fibrillation events match events identified by the human assessment;

and

wherein pictographically presenting based on the human assessment comprises pictographically presenting based on the determining.

3. The method of claim 2, wherein pictographically presenting the indications of atrial fibrillation activity comprises presenting information regarding duration of the identified atrial fibrillation events during the defined time period.

4. The method of claim 2, wherein the heart rate data comprise information presented in beats-per-minute.

5. The method of claim 4, wherein the range of heart rates comprises standard deviation of heart rate.

6. The method of claim 2, wherein pictographically presenting information comprises presenting the heart rate trend juxtaposed with the atrial fibrillation burden.

7. The method of claim 2, wherein pictographically presenting information comprises presenting heart rate trend and atrial fibrillation burden on the same graph.

8. The method of claim 2, wherein pictographically presenting information comprises presenting heart rate trend and atrial fibrillation burden on different graphs.

9. The method of claim 2, further comprising receiving input specifying the defined time period.

10. The method of claim 2, further comprising displaying an indication of a time interval of the multiple time intervals having a minimum heart rate for the multiple time intervals.

11. The method of claim 2, further comprising displaying an indication of a time interval of the multiple time intervals having a maximum heart rate for the multiple time intervals.

12. An article comprising a machine-readable medium embodying information indicative of instructions that when performed by one or more machines result in operations comprising:

identifying atrial fibrillation events in physiological data obtained for a living being, wherein identifying atrial fibrillation events comprises examining the physiological data in multiple time intervals, and identifying intervals in which at least one atrial fibrillation event has occurred;

obtaining heart rate data for the living being;

receiving a human assessment of a subset of the identified atrial fibrillation events; and

based on the human assessment of the subset of the identified atrial fibrillation events, pictographically presenting, using a common time scale, information regarding the heart rate data for the multiple time intervals during a defined time period in alignment with indications of atrial fibrillation activity for the identified intervals, according to the identified atrial fibrillation events, during the defined time period such that heart rate trend is presented with atrial fibrillation burden, wherein pictographically presenting information regarding the heart rate data comprises displaying for each of the multiple time intervals a range of heart rates and a heart rate average.

13. The article of claim 12,

determining that the identified atrial fibrillation events are valid when a threshold percentage of the identified events match events identified by the human assessment;

and

wherein pictographically presenting based on the human assessment comprises pictographically presenting based on the determining.

14. The article of claim 13, wherein pictographically presenting the indications of atrial fibrillation activity comprises presenting information regarding duration of the identified atrial fibrillation events during the defined time period.

15. The article of claim 13, wherein pictographically presenting information comprises presenting the heart rate trend juxtaposed with the atrial fibrillation burden.

16. The article of claim 13, wherein the operations further comprise receiving input specifying the defined time period.

17. The article of claim 13, wherein the operations further comprise displaying an indication of a time interval of the multiple time intervals having a maximum heart rate for the multiple time intervals.

18. An apparatus comprising:

means for identifying atrial fibrillation events in physiological data obtained for a living being based on examination of the physiological data in multiple time intervals to identify intervals in which at least one atrial fibrillation event has occurred;

means for obtaining heart rate data for the living being;

means for receiving a human assessment of a subset of the identified atrial fibrillation events; and

means for pictographically presenting, based on the human assessment of the subset of the identified atrial fibrillation events, information regarding the heart rate data for the multiple time intervals during a defined time period in alignment with indications of atrial fibrillation activity for the identified intervals, according to the identified atrial fibrillation events, during the defined time period such that heart rate trend is presented with atrial fibrillation burden, and a range of heart rates and a heart rate average are displayed for each of the multiple time intervals.

19. The apparatus of claim 18, further comprising means for determining that the identified atrial fibrillation events are valid when a threshold percentage of the identified events match events identified by the human assessment;

and

wherein the means for pictographically presenting is coupled to operate based on output of the means for determining.

20. The apparatus of claim 19, wherein the indications of atrial fibrillation activity comprise information regarding duration of the identified atrial fibrillation events during the defined time period.

21. The apparatus of claim 19, wherein the means for pictographically presenting comprises means for presenting the heart rate trend juxtaposed with the atrial fibrillation burden.

22. The apparatus of claim 19, further comprising means for receiving input specifying the defined time period.

23. A system for reporting information related to arrhythmia events comprising:

a monitoring system configured to process and report physiological data, including heart rate data, for a living being, configured to identify atrial fibrillation events from the physiological data, and configured to examine the physiological data in multiple time intervals to identify intervals in which at least one atrial fibrillation event has occurred;

a monitoring station for receiving the physiological data from the monitoring system; and

a processing system configured to;

receive a human assessment of a subset of the identified atrial fibrillation events, and

pictographically present based on the human assessment of the subset of the identified atrial fibrillation events, information regarding the heart rate data for the multiple time intervals during a defined time period in alignment with indications of atrial fibrillation activity for the identified intervals, according to the identified atrial fibrillation events, during the defined time period such that heart rate trend is presented with atrial fibrillation burden, and a range of heart rates and a heart rate average are displayed for each of the multiple time intervals.

24. The system of claim 23, wherein the processing system is configured to determine that the identified atrial fibrillation events are valid when a threshold percentage of the identified events match events identified by the human assessment, and configured to present the information regarding the heart rate data based on said determination.

25. The system of claim 24, wherein the processing system is configured to display an indication of a time interval of the multiple time intervals having a maximum heart rate for the multiple time intervals.

26. The system of claim 24, wherein the indications of atrial fibrillation activity comprise duration of the identified atrial fibrillation events during the defined time period.

27. The system of claim 24, wherein the processing system is configured to present the heart rate trend juxtaposed with the atrial fibrillation burden.

28. The system of claim 24, wherein the processing system is configured to receive input specifying the defined time period.