METHOD AND INTERFACE FOR ADAPTIVE RADIATION THERAPY

• US 20070088573A1
• Filed: 07/21/2006
• Published: 04/19/2007
• Est. Priority Date: 10/14/2005
• Status: Abandoned Application

• Current Assignee: TomoTherapy Incorporated (Accuray Incorporated)
• Original Assignee: TomoTherapy Incorporated (Accuray Incorporated)
• Inventors: Lu, Weiguo, Schnarr, Eric, Chen, Quan, Haimerl, Jason, Ruchala, Kenneth, Olivera, Gustavo
• Application Number:
  US11/459,052
• Publication Number:
  US 20070088573A1
• Time in Patent Office: Days
• US Class Current: 705/2
• CPC Class Codes: A61N 2005/1074 Details of the control system, e.g. user interfaces
• 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
• CPC Class Codes: A61N 5/1042 with spatial modulation of the radiation beam within the treatment head
• CPC Class Codes: A61N 5/1065 Beam adjustment
• CPC Class Codes: G16H 20/40 relating to mechanical, radiation or invasive therapies, e.g. surgery, laser therapy, dialysis or acupuncture
• CPC Class Codes: G16H 40/63 for local operation

Abstract

A system and method for developing and analyzing radiation therapy treatment plans and a computer-generated user interface for presenting data relating to a radiation therapy treatment plan. The user interface includes a list of fractions identified in the treatment plan, data identifying delivery status of the fraction, and data identifying a processing status of the fraction. The system includes a computer processor, a data store connected to the computer processor and storing information relating to at least one fraction of a radiation therapy treatment plan, which fraction has been delivered to a patient as part of the implementation of the radiation therapy treatment plan, and software, stored in a computer readable medium accessible by the computer processor, the software being operable to automatically process the information relating to the at least one fraction.

Claims

1. A computer-generated user interface for presenting data relating to a radiation therapy treatment plan, the user interface comprising:

a list of fractions identified in the treatment plan;

data identifying delivery status of the fraction; and

data identifying a processing status of the fraction, and wherein the processing status relates to data acquired before, during, or after treatment to

retrospectively analyze the delivery.

2. A user interface as set forth in claim 1 wherein the data identifying delivery status includes an indication of whether the fraction has been delivered to the patient.

3. A user interface as set forth in claim 1 wherein the data identifying processing status of the fraction includes an indication of whether a daily image for the fraction has been processed.

4. A user interface as set forth in claim 1 wherein the data identifying processing status of the fraction includes an indication of how a daily image will be processed.

5. A user interface as set forth in claim 1, and further comprising an indication of whether a daily image has been related to a planning image.

6. A user interface as set forth in claim 1 wherein the treatment plan comprises a contour set, and wherein the user interface further comprises an indication of how a contour set will be related to other images.

7. A user interface as set forth in claim 1 wherein the treatment plan comprises a contour set, and wherein the user interface further comprises an indication of whether a contour set has been generated for new images.

8. A user interface as set forth in claim 1 wherein the interface indicates whether a dose calculation has been performed.

9. A user interface as set forth in claim 1 wherein the interface indicates the method by which a dose calculation has been or will be performed.

10. A user interface as set forth in claim 1 and further comprising an indication of how dose is to be accumulated and whether this step has been performed.

11. A user interface as set forth in claim 1 and further comprising an indication that the dose is to be accumulated using deformation and whether this accumulation was performed.

12. A user interface as set forth in claim 1 wherein the data identifying processing status of the fraction includes shading of the processed fractions.

13. A user interface as set forth in claim 12 wherein the shading is used to indicate the status of the processing.

14. A system for developing and analyzing radiation therapy treatment plans, the system comprising:

a computer processor;

a data store connected to the computer processor and storing information relating to at least one fraction of a radiation therapy treatment plan, which fraction has been delivered to a patient as part of the implementation of the radiation therapy treatment plan, information relating to a delivery status of the fraction, and information relating to a processing status of the fraction; and

software stored in a computer readable medium accessible by the computer processor, the software being operable to automatically process the information relating to the at least one fraction, and

wherein the processing status relates to data acquired before, during, or after treatment to retrospectively analyze the delivery.

15. A system as set forth in claim 14 wherein the software automatically correlates a daily acquired patient image to a planning image.

16. A system as set forth in claim 14 wherein the treatment plan comprises a contour set, and wherein the software automatically generates a new or updated contour set based on data acquired during or proximate to delivery of the fraction to the patient.

17. A system as set forth in claim 14 wherein the treatment plan comprises a dose, and wherein the software automatically performs a dose calculation based on data generated during or proximate to delivery of the fraction to the patient.

18. A system as set forth in claim 14 and further comprising means for acquiring the information relating to at least one fraction.

19. A system as set forth in claim 18 wherein the software automatically processes the data upon acquisition by the means for acquiring.

20. A system as set forth in claim 18 wherein the software automatically processes the data in response to a user input.

21. A system as set forth in claim 14 wherein the software is operable to generate a notification when results from one or more of the fractions or processing steps exceeds a predetermined threshold.

22. A system as set forth in claim 21 wherein the results exceeding the threshold are based on patient dose.

23. A system as set forth in claim 21 wherein the results exceeding the threshold are based on a deformable registration.

24. A system as set forth in claim 21 wherein the results exceeding the threshold are based on generated contours.

25. A system as set forth in claim 21 wherein the results exceeding the threshold are based on other automated steps.

26. A system as set forth in claim 14 wherein the software is operable to analyze the information relating to one or more of the fractions using a gamma index.

27. A system as set forth in claim 14 wherein the software is operable to analyze the information relating to one or more of the fractions using a xi index.

28. A method of evaluating a radiation therapy treatment plan, the method comprising:

acquiring a reference image of at least a portion of a patient;

accessing a list of fractions identified in the treatment plan for the patient, each fraction being associated with a set of delivery conditions or parameters;

retrieving an image associated with one of the fractions;

generating a deformation map between the reference image and the image associated with one of the fractions; and

evaluating a radiation dose that would have been delivered to the patient for at least one of the fractions if any of the delivery conditions or parameters were different.

29. A method as set forth in claim 28 wherein the patient is positioned in a first position.

30. A method as set forth in claim 29 wherein the radiation dose is evaluated for a patient position different from the first position.

31. A method as set forth in claim 28 wherein the radiation dose is evaluated for a patient treatment plan different from the treatment plan delivered.

32. A method as set forth in claim 28 and further comprising adjusting the treatment plan based upon the results.

33. A method as set forth in claim 28 and further comprising determining the effect of alternate delivery conditions or parameters on the cumulative treatment.

34. A method as set forth in claim 28 wherein the treatment plan includes a first image and wherein the first image is replaced with a second image.

35. A method as set forth in claim 28 wherein the reference image is an image other than a planning image.

36. A method as set forth in claim 28 and further comprising retrospectively analyzing the radiation dose delivered to the patient based on the reference image.