Apparatus and method to facilitate generating a treatment plan for irradiating a patient's treatment volume

• US 7,986,768 B2
• Filed: 02/19/2009
• Issued: 07/26/2011
• Est. Priority Date: 02/19/2009
• Status: Active Grant

• Current Assignee: Siemens Healthineers International AG
• Original Assignee: Varian Medical Systems International AG (Siemens AG)
• Inventors: Viitala, Antti, Nord, Janne
• Primary Examiner(s): THOMAS, COURTNEY D
• Application Number:
  US12/389,051
• Publication Number:
  US 20100208867A1
• Time in Patent Office: 887 Days
• Field of Search: 378/65
• US Class Current: 378/65
• CPC Class Codes: A61N 2005/1041 using a library of previously administered radiation treatment applied to other patients
• CPC Class Codes: A61N 5/103 Treatment planning systems
• CPC Class Codes: A61N 5/1038 taking into account previously administered plans applied to the same patient, i.e. adaptive radiotherapy

Abstract

One provides (101) a plurality of different treatment plans for a given patient, wherein at least one such plans is provided by using deformation information that is obtained by using historical information for persons other than the given patient regarding physical changes over time as correspond to at least one volume within the given patient and/or calculated information regarding physical changes as correspond to the at least one volume within the patient. Obtained data (102) as pertains to the patient is then used to select (103) a particular one of the aforementioned plurality of different treatment plans.

Claims

1. A method to facilitate generating a treatment plan for irradiating a treatment volume within a patient, comprising:

providing a plurality of different treatment plans for the patient wherein at least one of the plurality of different treatment plans is provided by using deformation information that is obtained by at least one of;

using historical information for persons other than the patient regarding physical changes over time as correspond to at least one volume within the patient; and

using calculated information regarding physical changes as correspond to the at least one volume within the patient, wherein the calculated information comprises at least elasticity information for at least one object within the treatment volume;

obtaining data as pertains to the patient;

selecting a particular one of the plurality of different treatment plans as a function, as least in part, of the data as pertains to the patient to provide a selected treatment plan;

using the selected treatment plan when irradiating the treatment volume within the patient.

2. The method of claim 1 wherein at least one of the plurality of different treatment plans is provided by using the historical information for persons other than the patient regarding physical changes over time as correspond to the treatment volume and at least another of the plurality of different treatment plans is provided by using the calculated information regarding physical changes as correspond to the treatment volume.

3. The method of claim 1 wherein at least one of the plurality of different treatment plans is provided by using both the historical information for persons other than the patient regarding physical changes over time as correspond to the treatment volume and the calculated information regarding physical changes as correspond to the treatment volume.

4. The method of claim 1 wherein a plurality of the different treatment plans are provided by at least one of:

using historical information for persons other than the patient regarding physical changes over time as correspond to the treatment volume; and

using calculated information regarding physical changes as correspond to the treatment volume.

5. The method of claim 1 wherein the historical information comprises information regarding changes to geometry as pertain to the at least one volume within the patient.

6. The method of claim 1 wherein the historical information comprises information regarding movement of specific objects within the treatment volume.

7. The method of claim 1 further comprising:

using the deformation information to modify an original diagnostic image as pertains to the treatment volume to thereby provide at least one modified image.

8. The method of claim 1 wherein selecting a particular one of the plurality of different treatment plans as a function, as least in part, of the data as pertains to the patient to provide a selected treatment plan comprises selecting a particular one of the plurality of different treatment plans as corresponds to a modified image having at least one metric that correlates most closely to a corresponding metric in the data as pertains to the patient.

9. The method of claim 8 wherein the corresponding metric in the data as pertains to the patient comprises a metric regarding at least one of a change in tumor size, a change in organ volume, a change in patient weight, a change in patient structure position, a rotation of a patient structure, and a translation of a patient structure.

10. The method of claim 8 wherein the corresponding metric in the data as pertains to the patient comprises a metric regarding at least one of a change in position of a bone in the patient, a rotation of a bone in the patient, and a translation of a bone in the patient.

11. The method of claim 1 wherein selecting a particular one of the plurality of different treatment plans as a function, as least in part, of the data as pertains to the patient to provide a selected treatment plan further comprises selecting the particular one of the plurality of different treatment plans as a function, as least in part, of both the data as pertains to the patient and information regarding results of at least one previous treatment of the treatment volume to provide a selected treatment plan.

12. The method of claim 1 wherein providing a plurality of different treatment plans for the patient comprises providing the plurality of different treatment plans well prior to the step of selecting the particular one of the plurality of different treatment plans.

13. The method of claim 1 wherein using historical information for persons other than the patient regarding physical changes over time as correspond to at least one volume within the patient comprises selecting the historical information as a function, at least in part, of identifying historical information that corresponds to at least one metric that correlates most closely to a corresponding metric in the data as pertains to the patient.

14. An apparatus to facilitate generating a treatment plan for irradiating a treatment volume within a patient, comprising:

a first memory having stored therein a plurality of different treatment plans for the patient wherein at least one of the plurality of different treatment plans is provided by using deformation information that is obtained by at least one of;

using historical information for persons other than the patient regarding physical changes over time as correspond to at least one volume within the patient; and

using calculated information regarding physical changes as correspond to the at least one volume within the patient, wherein the calculated information comprises at least elasticity information for at least one object within the treatment volume;

a second memory having stored therein data as pertains to the patient;

a third memory having stored therein an original diagnostic image as pertains to the treatment volume;

a processor operably coupled to the first memory, the second memory, and the third memory and being configured to use the deformation information to modify the original diagnostic image as pertains to the treatment volume to thereby provide at least one modified image and further having a user interface to permit a user to select a particular one of the plurality of different treatment plans as corresponds to a modified image having at least one metric that correlates most closely to a corresponding metric in the data as pertains to the patient.

15. The apparatus of claim 14 wherein at least one of the plurality of different treatment plans is provided by using the historical information for persons other than the patient regarding physical changes over time as correspond to the treatment volume and at least another of the plurality of different treatment plans is provided by using the calculated information regarding physical changes as correspond to the treatment volume.

16. The apparatus of claim 14 wherein at least one of the plurality of different treatment plans is provided by using both the historical information for persons other than the patient regarding physical changes over time as correspond to the treatment volume and the calculated information regarding physical changes as correspond to the treatment volume.

17. The apparatus of claim 14 wherein a plurality of the different treatment plans are provided by at least one of:

using historical information for persons other than the patient regarding physical changes over time as correspond to the treatment volume; and

using calculated information regarding physical changes as correspond to the treatment volume.

18. The apparatus of claim 14 wherein the historical information comprises information regarding changes to geometry as pertain to the at least one volume within the patient.

19. The apparatus of claim 14 wherein the historical information comprises information regarding movement of specific objects within the treatment volume.

20. A method to facilitate generating a treatment plan for irradiating a treatment volume within a patient, comprising:

providing a treatment plan for the patient wherein the treatment plan is provided by using deformation information that is obtained by at least one of;

using historical information for persons other than the patient regarding physical changes over time as correspond to at least one volume within the patient; and

using calculated information regarding physical changes as correspond to the at least one volume within the patient, wherein the calculated information comprises at least elasticity information for at least one object within the treatment volume;

using the treatment plan when irradiating the treatment volume within the patient.