SYSTEM AND METHOD FOR COMPUTER ASSISTED ANALYSIS OF MEDICAL IMAGE

• US 20090169074A1
• Filed: 01/02/2008
• Published: 07/02/2009
• Est. Priority Date: 01/02/2008
• Status: Abandoned Application

• Current Assignee: General Electric Company
• Original Assignee: General Electric Company
• Inventors: Panchal, Kiran, Avinash, Gopal
• Application Number:
  US11/968,476
• Publication Number:
  US 20090169074A1
• Time in Patent Office: Days
• US Class Current: 382/128
• CPC Class Codes: G06T 2207/30004 Biomedical image processing
• CPC Class Codes: G06T 7/11 Region-based segmentation
• CPC Class Codes: G16H 30/40 for processing medical images, e.g. editing

Abstract

In one embodiment, a computer assisted method for displaying a medical image is provided. The method comprises steps of determining authorization status of a user accessing an image database, suppressing the information content in a first image, commensurate with the authorization status, to obtain a second image and displaying the second image to the user.

Claims

1. A computer assisted method for displaying a medical image, the method comprising steps of:

determining authorization status of a user accessing an image database;

suppressing the information content in a first image, commensurate with the authorization status, to obtain a second image; and

displaying the second image to the user.

2. The method of claim 1, wherein suppressing the information content comprises:

automatically segmenting at least one region of interest in the first image; and

suppressing the information content in the region of interest.

3. The method of claim 1, wherein suppressing the information content comprises:

accessing a pre computed segmentation mask corresponding to at least one region of interest, the pre computed segmentation mask stored in the image database; and

suppressing the information content in the region of interest based on the pre computed segmentation mask.

4. The method of claim 3, wherein the pre computed segmentation mask is chosen based on the authorization status.

5. The method of claim 1, wherein suppressing the information content comprises:

altering the first image based on the authorization status; and

suppressing one or more regions of interest in the first image.

6. The method of claim 2, wherein the step of automatically segmenting comprises:

performing feature extraction on the region of interest;

performing feature evaluation on the region of interest; and

performing feature based segmentation for segmenting the region of interest.

7. The method of claim 1, wherein the medical image is obtained from an image database

8. The method of claim 1, wherein the medical image is acquired in real time using an imaging system, the imaging system including an ultrasound imaging system.

9. A method for analyzing a medical image comprising:

acquiring a first image from an imaging system;

determining an authorization status of a user accessing the first image;

suppressing the information content in the first image, commensurate with the authorization status, to obtain a second image; and

displaying the second image to the user.

10. The method of claim 9, wherein acquiring the first image comprises acquiring the first image from an imaging system, the imaging system including an ultrasound imaging system, a computed tomography system, a magnetic resonance imaging system and a positron emission tomography (PET) system.

11. The method of claim 9, wherein suppressing the information content comprises:

automatically segmenting at least one region of interest in the first image; and

suppressing the information content in the region of interest.

12. The method of claim 11, further comprises processing one or more features of the one or more segmented data sets to produce one or more feature-processed data sets, wherein processing one or more features of the one or more segmented data sets comprises extracting one or more features from the one or more segmented data sets.

13. The method of claim 12, wherein processing one or more features of the one or more segmented data sets comprises at least one of:

evaluating the one or more features using a distance criteria;

ranking the features based upon the distance criteria;

eliminating one or more features based upon a degree of correlation; and

optimizing a selected feature set using a performance algorithm.

14. The method of claim 13, further comprising training a processing system to process the one or more features of the one or more segmented data sets.

15. The method of claim 13, further comprising classifying each of the one or more features based upon one or more feature measurements of each feature to produce the one or more feature-processed data sets, wherein classifying the one or more features comprises normalizing the feature measurements based upon a plurality of prior measurements, grouping the one or more features based upon their normalized feature measurements, and labeling the groups of one or more features.

16. The method of claim 9, wherein suppressing the information content comprises:

accessing a pre computed segmentation mask corresponding to at least one region of interest, the pre computed segmentation mask stored in the image database; and

suppressing the information content in the region of interest based on the pre computed segmentation mask.

17. The method of claim 16, wherein the pre computed segmentation mask is chosen based on the authorization status.

18. The method of claim 9, wherein suppressing the information content comprises:

altering the first image based on the authorization status; and

suppressing one or more regions of interest in the first image.

19. A system for computer assisted analysis of medical image, the system comprising:

a source;

a detector;

a data acquisition system;

a computer system operably coupled to the data acquisition system, an operator workstation and a memory element;

wherein the computer system is configured to acquire a first image from the detector;

determine an authorization status of a user accessing the first image;

suppress the information content in the first image, commensurate with the authorization status, to obtain a second image; and

display the second image to the user.

20. The system of claim 19, wherein the computer system is configured to process one or more features of the one or more segmented data sets by extracting one or more features from the one or more segmented data sets.

21. The system of claim 20, wherein the computer system is further configured to evaluate the one or more features using a distance criteria, rank the features based upon the distance criteria, eliminate one or more features based upon a degree of correlation, and optimize a selected feature set using a performance algorithm.

22. The system of claim 21, wherein the computer system is further configured to classify each of the one or more features based upon one or more feature measurements of each feature to produce the one or more feature-processed data sets.

23. The system of claim 22, wherein the computer system is configured to classify the one or more features by normalizing the feature measurements based upon a plurality of prior measurements, group the one or more features based upon their normalized feature measurements, and label the groups of one or more features.

24. A tangible medium comprising program code for executing an image processing method, the tangible medium comprising:

a routine for determining authorization status of a user accessing an image database;

a routine for suppressing the information content in a first image, commensurate with the authorization status, to obtain a second image; and

a routine for displaying the second image to the user.

25. The method of claim 24, wherein the routine for suppressing the information content comprises:

a routine for automatically segmenting at least one region of interest in the first image; and

a routine for suppressing the information content in the region of interest.

26. The method of claim 24, wherein the routine for suppressing the information content comprises:

a routine for accessing a pre computed segmentation mask corresponding to at least one region of interest, the pre computed segmentation mask stored in the image database; and

a routine for suppressing the information content in the region of interest based on the pre computed segmentation mask.

27. The method of claim 26, wherein the pre computed segmentation mask is chosen based on the authorization status.

28. The method of claim 24, wherein suppressing the information content comprises:

a routine for altering the first image based on the authorization status; and

a routine for suppressing one or more regions of interest in the first image.