Method for assigning a medical image dataset to a medical comparison image dataset depending on biometric data

Patent metadata

Field	Value
Publication number	US-12223652-B2
Application number	US-202217749353-A
Country	US
Kind code	B2
Filing date	May 20, 2022
Priority date	May 25, 2021
Publication date	Feb 11, 2025
Grant date	Feb 11, 2025

Abstract

At least one example embodiment relates to a computer-implemented method comprising receiving a medical image dataset; receiving at least one medical comparison image dataset; extracting biometric data based on the medical image dataset; extracting biometric comparison data based on the medical comparison image dataset; determining a measure of difference between the biometric comparison data and the biometric data; and assigning the medical image dataset to the medical comparison image dataset when the measure of difference does not exceed a threshold value.

First claim

What is claimed is:

1. A computer-implemented method, the method comprising:
receiving a medical image dataset;
receiving at least one medical comparison image dataset;
extracting biometric data based on the medical image dataset;
extracting biometric comparison data based on the medical comparison image dataset;
determining a measure of difference between the biometric comparison data and the biometric data; and
assigning the medical image dataset to the medical comparison image dataset when the measure of difference does not exceed a threshold value.

2. The method as claimed in claim 1 , wherein at least one of
(i) the medical comparison image dataset maps at least one part of a body of a first patient, or
(ii) the medical image dataset maps at least one part of the body of the first patient or a second patient.

3. The method as claimed in claim 2 , wherein
the biometric data comprises at least one of at least one anatomical landmark or at least one surface network of at least one anatomy of the at least one mapped part of the body in the medical image dataset, and
the biometric comparison data comprises at least one of at least one anatomical landmark or at least one surface network of at least one anatomy of the at least one mapped part of the body in the medical comparison image dataset.

4. The method as claimed in claim 3 , wherein the at least one of the anatomical landmark or the surface network comprises at least one coordinate in the medical image dataset or in the medical comparison image dataset.

5. The method as claimed in claim 2 , further comprising:
establishing a registration between the biometric comparison data and the biometric data, and
the determining the measure of difference is based on the registration.

6. The method as claimed in claim 3 , wherein the determining the measure of difference is based on a temporal stability of the at least one of at least one anatomical landmark or at least one surface network.

7. The method as claimed in claim 3 , further comprising:
establishing a registration between the biometric comparison data and the biometric data, and
the determining the measure of difference is based on the registration.

8. The method as claimed in claim 1 , further comprising:
establishing a registration between the biometric comparison data and the biometric data, and
the determining the measure of difference is based on the registration.

9. The method as claimed in claim 8 , wherein
the establishing the registration includes,
determining at least one of anatomical landmarks or surface networks corresponding to one another in the biometric comparison data and the biometric data, and
transforming the at least one of anatomical landmarks or surface networks corresponding to one another into a common coordinate system, and

the determining the measure of difference includes,
determining a difference of the coordinates of the at least one of anatomical landmarks or surface networks corresponding to one another in the common coordinate system.

10. The method as claimed in claim 8 , wherein the establishing the registration of the biometric comparison data and of the biometric data comprises a rigid registration.

11. The method as claimed in claim 1 , wherein the determining the measure of difference comprises:
applying a trained function to the biometric comparison data and the biometric data to determine the measure of difference.

12. The method as claimed in claim 1 , wherein the assigning the medical image dataset comprises at least one of:
creating a linkage between the medical image dataset and the medical comparison image dataset in a database;
determining a common identification number for the medical image dataset and the medical comparison image dataset; or
applying a function for image analysis to the medical comparison image dataset and the medical image dataset.

13. The method as claimed in claim 12 , wherein
the medical comparison image dataset has been acquired at a time before the medical image dataset, and
the applying the function for image analysis to the medical comparison image dataset and the medical image dataset includes determining a temporal change between the medical comparison image dataset and the medical image dataset.

14. The method as claimed in claim 13 , further comprising:
providing a warning signal when the measure of difference is greater than or equal to threshold value.

15. The method as claimed in claim 1 , wherein the medical image dataset is assigned to the medical comparison image dataset by a provisional assignment, the method further comprising:
correcting the provisional assignment between the medical image dataset and the medical comparison image dataset when the measure of difference is greater than or equal to the threshold value.

16. The method as claimed in claim 15 , further comprising:
providing a warning signal when the measure of difference is greater than or equal to threshold value.

17. The method as claimed in claim 1 , further comprising:
providing a warning signal when the measure of difference is greater than or equal to threshold value.

18. A non-transitory computer-readable storage medium comprising program sections, when executed by an assignment system, cause the assignment system to perform the method of claim 1 .

19. An assignment system comprising:
an interface configured to receive a medical image dataset and at least one medical comparison image dataset; and
a computing unit, the computing unit configured to
extract biometric data based on the medical image dataset,
extract biometric comparison data based on the medical comparison image dataset,
determine a measure of difference between the biometric comparison data and the biometric data, and
assign the medical image dataset to the medical comparison image dataset when the measure of difference does not exceed a threshold value.

20. An assignment system comprising:
an interface configured to obtain a medical image dataset and at least one medical comparison image dataset; and
at least one processor configured to cause the assignment system to,
extract biometric data based on the medical image dataset,
extract biometric comparison data based on the medical comparison image dataset,
determine a measure of difference between the biometric comparison data and the biometric data, and
assign the medical image dataset to the medical comparison image dataset when the measure of difference does not exceed a threshold value.

Assignees

• Siemens Healthineers Ag

Inventors

• Sperl Jonathan
• Zenge Michael
• Kaftan Jens

Classifications

• G06T2207/30196

  Human being; Person · CPC title

• G06V40/50

  Maintenance of biometric data or enrolment thereof · CPC title

• G16H30/40 Primary

  for processing medical images, e.g. editing · CPC title

• G16H50/20

  for computer-aided diagnosis, e.g. based on medical expert systems · CPC title

• G06V10/74

  Image or video pattern matching; Proximity measures in feature spaces · CPC title