Method and apparatus for interactive annotation and measurement of time series data with automatic marking

• US 20040054295A1
• Filed: 09/18/2002
• Published: 03/18/2004
• Est. Priority Date: 09/18/2002
• Status: Abandoned Application

• Current Assignee: eResearchTechnology, Inc. (Explorer Holdings, Inc.)
• Original Assignee: eResearchTechnology, Inc. (Explorer Holdings, Inc.)
• Inventors: Ramseth, Douglas J.
• Application Number:
  US10/246,250
• Publication Number:
  US 20040054295A1
• Time in Patent Office: Days
• US Class Current: 600/509
• CPC Class Codes: A61B 5/0006 ECG or EEG signals
• CPC Class Codes: A61B 5/339 Displays specially adapted therefor
• CPC Class Codes: G16H 40/40 for the management of medical equipment or devices, e.g. scheduling maintenance or upgrades
• CPC Class Codes: G16H 40/63 for local operation
• CPC Class Codes: G16Z 99/00 Subject matter not provided for in other main groups of this subclass

Abstract

A system displays time-series data, such as electrocardiographic data. The data may be displayed as a trace with markers identifying data features. One or more of the markers may be automatically placed by the system.

Claims

1. A method of marking time-series medical data graphically displayed in the form of a trace, comprising the steps of:

a controller placing a first mark related to a displayed medical trace feature; and

the controller automatically marking a medical trace feature related to the first marked feature.

2. The method of claim 1 wherein the step of the controller marking a medical trace feature related to the first marked feature comprises the step of:

the step of the controller marking a subsequent feature in a sequence of features.

3. The method of claim 2 wherein the step of the controller marking a medical trace feature related to the first marked feature further comprises the step of:

the controller marking a sequence of features that define at least a portion of a medically significant trace artifact.

4. The method of claim 1 wherein the step of the controller placing a first mark further comprises the steps of:

the controller analyzing the medical data represented by the displayed medical trace;

the controller extracting features of the medical data in response to the analysis of the medical data; and

the controller marking one of the extracted features.

5. The method of claim 1 wherein the step of the controller placing a first mark further comprises the steps of:

the controller accepting input from a user to locate a feature of the trace and marking that feature.

6. The method of claim 5 wherein the step of the controller marking a medical trace feature related to the first marked feature comprises the step of:

the controller marking a subsequent feature in a sequence of features.

7. The method of claim 6 wherein the step of the controller marking a medical trace feature related to the first marked feature further comprises the step of:

the controller marking a sequence of features that define at least a portion of a medically significant trace artifact.

8. The method of claim 7 wherein the step of the controller marking a feature comprises the step of:

the controller being responsive to user input by marking a QRS onset feature and the controller automatically marking one or more subsequent QRS interval features.

9. The method of claim 8 wherein the step of the controller marking a feature further comprises the step of:

the controller automatically marking the corresponding P wave onset.

10. The method of claim 8 wherein the step of the controller marking a feature further comprises the step of:

the controller automatically marking the corresponding QRS end.

11. The method of claim 8 wherein the step of the controller marking a feature further comprises the step of:

the controller automatically marking the corresponding T wave end.

12. The method of claim 8 further comprising the step of:

the controller computing the corresponding PR interval.

13. The method of claim 8 further comprising the step of:

the controller computing the corresponding QT interval.

14. The method of claim 8 further comprising the step of:

the controller computing the corresponding QRS duration.

15. The method of claim 7 wherein the step of the controller marking a feature comprises the step of:

the controller being responsive to user input by marking a Q feature and the controller automatically marking at least one subsequent PJT interval features.

16. The method of claim 15 wherein the step of the controller marking a feature includes the steps of:

the controller displaying ECG data in graphical form on a gridded background.

17. A method of marking time-series medical data graphically displayed in the form of a trace, comprising the steps of:

a controller placing a first mark related to a displayed medical trace feature, wherein the step of the controller placing a first mark further comprises the steps of;

the controller analyzing the medical data represented by the displayed medical trace;

the controller extracting features of the medical data in response to the analysis of the medical data; and

the controller marking one of the extracted features;

the controller automatically marking a subsequent medical trace feature related to the first marked feature;

18. The method of claim 17 wherein the step of the controller marking a medical trace feature related to the first marked feature further comprises the step of:

the controller marking a sequence of features that define at least a portion of a medically significant trace artifact.

19. The method of claim 18 wherein the step of the controller marking a feature comprises the step of:

the controller being responsive to user input by marking a QRS onset feature and the controller automatically marking one or more subsequent QRS interval features.

20. An apparatus for marking time-series medical data graphically displayed in the form of a trace, comprising:

a controller configured to place a first mark related to a displayed medical trace feature; and

the controller configured to automatically mark a medical trace feature related to the first marked feature.

21. The apparatus of claim 20 wherein the controller is configured:

to mark a sequence of features that define at least a portion of a medically significant trace artifact;

to mark a subsequent feature in a sequence of features;

to analyze the medical data represented by the displayed medical trace;

to extract features of the medical data in response to the analysis of the medical data; and

to mark at least one of the extracted features.

22. The apparatus of claim 20 wherein the controller is configured to place a first mark by accepting input from a user to locate a feature of the trace and marking the located feature.

23. The apparatus of claim 22 wherein the step of the controller is configured:

to mark a sequence of features that define at least a portion of a medically significant trace artifact;

to mark a subsequent feature in a sequence of features;

to be responsive to user input by marking a QRS onset feature and automatically mark one or more subsequent QRS interval features.

24. The apparatus of claim 23 wherein the controller is configured to display ECG data in graphical form on a gridded background.