Exercise test interpretation

• US 7,542,955 B2
• Filed: 03/10/2006
• Issued: 06/02/2009
• Est. Priority Date: 03/10/2006
• Status: Active Grant

• Current Assignee: General Electric Company
• Original Assignee: General Electric Company
• Inventors: Findeis, Martin, Kaiser, Willi, Young, Brian J.
• Primary Examiner(s): Vincent; David R
• Assistant Examiner(s): FERNANDEZ RIVAS, OMAR F
• Application Number:
  US11/372,852
• Publication Number:
  US 20070239647A1
• Time in Patent Office: 1,180 Days
• Field of Search: 706 45- 47, 706/50, 706 60- 61, 600/301, 600372-374, 600/382, 600/454, 600/467, 600/475, 600/479, 600/481, 600/486, 600508-509, 600/520, 600/533, 600/534
• US Class Current: 706/46
• CPC Class Codes: A61B 5/222 combined with detection or measurement of physiological parameters, e.g. heart rate
• CPC Class Codes: A61B 5/318 Heart-related electrical modalities, e.g. electrocardiography [ECG]
• CPC Class Codes: A61B 5/329 Load diagnosis, e.g. cardiac stress tests
• CPC Class Codes: G16H 15/00 ICT specially adapted for medical reports, e.g. generation or transmission thereof
• CPC Class Codes: G16H 50/20 for computer-aided diagnosis, e.g. based on medical expert systems

Abstract

A system and method for the efficient implementation of a complex exercise test is disclosed. A rule interpreter synthesizes interpretation statements based upon the processing of collected physiological data and user entered data with a series of exercise test interpretation rules. These statements aid a clinician in interpreting exercise test results by identifying detected abnormal or borderline conditions.

Claims

1. An integrated system for interpreting the results of an exercise test being performed on a patient by a clinician, said system comprising:

a patient monitor that receives a plurality of physiological parameter data from the patient during the exercise test;

a rule database comprising a plurality of exercise test interpretation rules with physiological parameter data value criteria, wherein a plurality of combinations of one or more of the exercise test interpretation rules define a pathological condition;

a rule interpreter that receives the plurality of exercise test interpretation rules from the rule database and the plurality of physiological parameter data from the patient, wherein the rule interpreter evaluates the plurality of exercise test interpretation rules with the plurality of physiological parameter data from the patient and produces an interpretation statement and a reasoning text for each exercise test interpretation rule for which the physiological parameter data value criteria is fulfilled; and

an exercise test interpretation display that receives the interpretation statement and the reasoning text from the rule interpreter and presents the interpretation statement and the reasoning text associated with the interpretation statement, wherein the interpretation statement is a textual description of a pathological condition afflicting the patient as identified by the fulfillment of one or more physiological parameter data value criteria, and the reasoning text is a textual description of the combination of one or more exercise test interpretation rules for which the physiological parameter data value criteria was fulfilled to result in the received interpretation statement.

2. The integrated system of claim 1 wherein the physiological parameter data value criteria comprise value limits.

3. The integrated system of claim 2 wherein the physiological parameter data value criteria further comprise Boolean statements.

4. The integrated system of claim 1 wherein the interpretation statement further comprises a location statement that identifies an anatomical location within the patient that is afflicted by the pathological condition identified by the interpretation statement.

5. The integrated system of claim 4 wherein the exercise test interpretation display further presents a summary statement that is a textual description of the normality of the pathological condition identified in the interpretation statement.

6. The integrated system of claim 1, further comprising a plurality of interpretation statements, the plurality of interpretation statements including:

a risk prediction statement that is a textual description of a physiological risk afflicting the patient;

a cardiac functional response statement that is a textual description of a functional evaluation of the patient'"'"'s cardiac system; and

a coronary artery disease statement that is a textual description of the patient'"'"'s indicated coronary artery disease.

7. The integrated system of claim 6, wherein the coronary artery disease statement further comprises a location statement that identifies an anatomical location within the patient that is afflicted by the identified coronary artery disease.

8. The integrated system of claim 6, wherein each of the risk prediction statement, the cardiac functional response statement, and the coronary artery disease statement describe pathological conditions defined by a plurality of combinations of one or more of the exercise test interpretation rules.

9. A computer implemented method of interpreting physiological data collected from a patient undergoing an exercise test, the method comprising the steps of:

collecting the physiological data from the patient;

a rule interpreter of a computer retrieving a plurality of exercise test interpretation rules from a database, each of the exercise test interpretation rules defining a pathological condition with a plurality of combinations of one or more physiological data value criteria;

the rule interpreter evaluating the plurality of exercise test interpretation rules with the collected physiological data from the patient;

upon the fulfillment of the physiological data value criteria of the exercise test interpretation rule by the collected physiological data, the rule interpreter generating an exercise test interpretation statement and a reasoning text; and

,

presenting the exercise test interpretation statement and the reasoning text, associated with the exercise interpretation statement, on a graphical display;

wherein the exercise test interpretation statement is a textual description of the pathological condition afflicting the patient as identified by the fulfillment of a combination of one or more of the physiological data value criteria and the reasoning text is a textual description of the combination of one or more of the physiological data value criteria that were fulfilled to result in the presented exercise text interpretation statement.

10. The computer implemented method of exercise test interpretation of claim 9 further comprising the steps of:

the rule interpreter receiving patient data and exercise test data;

combining the patient data and exercise test data with the physiological data; and

evaluating the plurality of exercise test interpretation rules with the patient data and exercise test data;

wherein the plurality of exercise test interpretation rules require patient data and exercise data in the physiological data value criteria.

11. The computer implemented method of claim 9 further comprising the step of presenting a summary statement on the graphical display, the summary statement indicative of the abnormality of the exercise test.

12. The computer implemented method of claim 11 further comprising:

presenting a location statement on the graphical display in visual association with the exercise test interpretation statement, wherein the location statement is a textual statement of an anatomical location within the patient that is afflicted by the pathological condition identified by the interpretation statement.

13. The computer implemented method of claim 9, wherein the exercise text interpretation statement is selected from a list comprising:

a risk prediction statement that is a textual description of a physiological risk afflicting the patient, a cardiac functional response statement that is a textual description of an evaluation of a patient'"'"'s cardiac function; and

a coronary artery disease statement that is a textual description of the patient'"'"'s indicated coronary artery disease.

14. The computer implemented method of claim 13, further comprising presenting a plurality of exercise test interpretation statements, wherein the plurality of exercise test interpretation statements includes a risk prediction statement, a cardiac function response statement, and a coronary artery disease statement.

15. The computer implemented method of claim 14, wherein the coronary artery disease statement further comprises a location statement that textually identifies an anatomical location within the patient that is afflicted by the identified coronary artery disease.

16. The computer implemented method of claim 14 wherein each of the risk prediction statement, cardiac functional response statement, and coronary artery disease statement describe pathological conditions defined by a plurality of combinations of one or more of the exercise test interpretation rules.