ECG filtering

• US 20060235321A1
• Filed: 04/15/2005
• Published: 10/19/2006
• Est. Priority Date: 04/15/2005
• Status: Abandoned Application

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Zhang, Tong, Blakley, Daniel Robert, Simske, Steven John
• Application Number:
  US11/107,264
• Publication Number:
  US 20060235321A1
• Time in Patent Office: Days
• US Class Current: 600/512
• CPC Class Codes: A61B 5/341 Vectorcardiography [VCG]

Abstract

A method of obtaining a filtered electrocardiogram is provided. The method includes the steps of obtaining a vectorcardiogram, filtering the vectorcardiogram to form a filtered vectorcardiogram, and transforming the filtered vectorcardiogram into a filtered electrocardiogram. The method may also include the preliminary step of obtaining an electrocardiogram, and then transforming the electrocardiogram into the vectorcardiogram.

Claims

1. A method of obtaining a filtered electrocardiogram, comprising steps of:

obtaining a vectorcardiogram;

filtering the vectorcardiogram to form a filtered vectorcardiogram; and

transforming the filtered vectorcardiogram into a filtered electrocardiogram.

2. The method of claim 1, wherein the step of obtaining the vectorcardiogram includes steps of:

obtaining an electrocardiogram; and

transforming the electrocardiogram into the vectorcardiogram.

3. The method of claim 2, wherein the electrocardiogram is obtained as a raw electrocardiogram.

4. The method of claim 2, wherein the electrocardiogram is obtained as a processed electrocardiogram.

5. The method of claim 2, wherein the step of obtaining the electrocardiogram further comprises steps of:

electrically associating at least two leads with a subject; and

recording electrocardiogram signals from the subject via the at least two leads.

6. The method of claim 5, wherein the step of electrically associating includes electrically associating at least three leads.

7. The method of claim 5, wherein the step of electrically associating includes electrically associating at least four leads.

8. The method of claim 6, further comprising a step of selecting a pair of leads that provides an acceptable level of signal quality for transforming the electrocardiogram into the vectorcardiogram.

9. The method of claim 8, wherein the pair of leads provide a higher level of signal quality than other pairs of leads of the at least three leads.

10. The method of claim 5, wherein the step of transforming the electrocardiogram into the vectorcardiogram occurs during an overlapping period of time with respect to the step of recording of the electrocardiogram signal.

11. The method of claim 2, wherein the step of obtaining the electrocardiogram includes obtaining the electrocardiogram from a storage location.

12. The method of claim 1, wherein the step of filtering the vectorcardiogram includes reducing a vectorcardiogram signal artifact.

13. The method of claim 12, wherein the signal artifact is a member selected from the group consisting of electrical noise, thermal noise, movement artifacts, breathing artifacts, and combinations thereof.

14. The method of claim 1, further comprising a step of diagnosing a patient condition.

15. The method of claim 14, wherein the step of diagnosing the patient condition includes an examination of the filtered vectorcardiogram.

16. The method of claim 14, wherein the step of diagnosing the patient condition includes an examination of the filtered electrocardiogram.