Patient specific anatiomical sketches for medical reports

• US 10,102,347 B2
• Filed: 09/17/2009
• Issued: 10/16/2018
• Est. Priority Date: 09/26/2008
• Status: Active Grant

• Current Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Original Assignee: Koninklijke Philips N.V.
• Inventors: Lorenz, Cristian, Dries, Sebastian Peter Michael, Renisch, Steffen, Von Berg, Jens
• Primary Examiner(s): Wang, Yuehan
• Assistant Examiner(s): Le, Michael
• Application Number:
  US13/120,181
• Publication Number:
  US 20110169864A1
• Time in Patent Office: 3,316 Days
• Field of Search: 345619-689, 345419, 345420, 345442
• CPC Class Codes: G06T 19/20 Editing of 3D images, e.g. changing shapes or colours, aligning objects or positioning parts
• CPC Class Codes: G06T 2207/10072 Tomographic images
• CPC Class Codes: G06T 2207/10116 X-ray image
• CPC Class Codes: G06T 2207/30012 Spine; Backbone
• CPC Class Codes: G06T 2219/2021 Shape modification
• CPC Class Codes: G06T 7/0012 Biomedical image inspection
• CPC Class Codes: G06T 7/12 Edge-based segmentation
• CPC Class Codes: G06T 7/149 involving deformable models, e.g. active contour models
• CPC Class Codes: G16H 15/00 ICT specially adapted for medical reports, e.g. generation or transmission thereof
• CPC Class Codes: G16H 30/20 for handling medical images, e.g. DICOM, HL7 or PACS

Abstract

The invention relates to a system for producing a representation of an object in image data, based on a template coupled to a model of the object, the system comprising a model unit for adapting the model to the object in the image data, and a template unit for adapting the template to the adapted model on the basis of the coupling between the template and the model. The template defines a representation of the object which is simpler to interpret than the model. Because the template of the invention is coupled to the model, the position, orientation and/or shape of the template is determined by the model adapted to the object in the image data. Hence, the template is adapted to the image data. The adapted template is capable of representing the object and its individual characteristics.

Claims

1. A system for producing a representation of an anatomical object in image data, based on a template coupled to a model of the object, the system comprising:

a model unit for adapting the model to the object in the image data;

a template unit for adapting the template to the adapted model on the basis of the coupling between the template and the model, wherein the template unit adapts the template such that a plane of the template is defined by three non co-linear points defined by features of the adapted model; and

an image unit for producing an image of the template, wherein the image of the template comprises at least three orthogonal projections of the template along the principal axes of an inertia tensor of the template, wherein the template comprises a first portion and a second portion, and wherein the image unit is arranged for producing a first portion of the image, based on the first portion of the template, using a first visual pattern, and a second portion of the image, based on the second portion of the template, using a second visual pattern.

2. The system as claimed in claim 1, wherein the template is rigid and is movably coupled to the model.

3. The system as claimed in claim 1, wherein the template comprises a plurality of control points which are rigidly or elastically coupled to the model.

4. The system as claimed in claim 1, wherein the template is elastic.

5. The system as claimed in claim 1, wherein the template comprises at least one curve or surface.

6. A reporting system for creating a report, the reporting system comprising the system according to claim 1, the report comprising the image of the template.

7. An image acquisition apparatus comprising the system as claimed in claim 1.

8. A workstation comprising the system as claimed in claim 1.

9. A method of producing a representation of an anatomical object in image data, based on a template coupled to a model of the object, the method comprising:

a model step for adapting the model to the object in the image data;

a template step for adapting the template to the adapted model on the basis of the coupling between the template and the model, wherein the template step adapts the template so that a center of template is at a mass center of three non co-linear points defined by features of the adapted model; and

an image step for producing an image of the template, wherein the image of the template comprises at least three orthogonal projections of the template along the principal axes of an inertia tensor of the template, wherein the template comprises a first portion and a second portion, and wherein a first portion of the image is produced, based on the first portion of the template, using a first visual pattern, and a second portion of the image is produced, based on the second portion of the template, using a second visual pattern.

10. The method as claimed in claim 9, further comprising:

determining at least one of a position, an orientation or a shape of the template by the adapted model.

11. The method as claimed in claim 9, further comprising:

determining individual characteristics of the object with respect to an external reference system.

12. The method as claimed in claim 9, wherein the template comprises a contour of the lumbar vertebra and is defined by a planar cross-section of the surface of the lumbar vertebra model and described by a plurality of control points on the surface of the model, and adapting the template to the adapted model determines new positions of the control points of the template contour on the surface model of the vertebra, which defines an adapted contour.

13. The method as claimed in claim 12, wherein the adapted contour takes into account individual characteristics of the vertebrae, including at least one of vertebral compression or fracture.

14. The method as claimed in claim 13, wherein the at least one of the vertebral compression or the fracture is not visible in the contour before the adaptation.

15. A non-transitory computer readable memory of a computer arrangement loaded with a computer program product, comprising instructions for producing a representation of an anatomical object in image data, based on a template coupled to a model of the object, the computer arrangement comprising a processing unit and the memory, the computer program product, after being loaded, providing said processing unit with the capability to carry out the tasks of:

adapting the model to the object in the image data;

adapting the template to the adapted model on the basis of the coupling between the template and the model, wherein adapting the template includes determining an axis of the template by a line obtained by applying linear regression to three non co-linear points defined by features of the adapted model; and

producing an image of the template, wherein the image of the template comprises at least three orthogonal projections of the template along the principal axes of an inertia tensor of the template, wherein the template comprises a first portion and a second portion, wherein the processing unit is further provided with the capability to produce a first portion of the image, based on the first portion of the template, using a first visual pattern, and a second portion of the image, based on the second portion of the template, using a second visual pattern.

16. The computer program product of claim 15, wherein the template is rigid and is movably coupled to the model.

17. The computer program product of claim 15, wherein the template comprises a plurality of control points which are rigidly or elastically coupled to the model.

18. The computer program product of claim 15, wherein the template is elastic.

19. The computer program product of claim 15, wherein the template comprises at least one curve.

20. The computer program product of claim 15, wherein the template comprises at least one surface.