Assessing treatment parameters for radiation treatment planning

Patent metadata

Field	Value
Publication number	US-2023191153-A1
Application number	US-202318108539-A
Country	US
Kind code	A1
Filing date	Feb 10, 2023
Priority date	Jun 29, 2021
Publication date	Jun 22, 2023
Grant date	—

Abstract

Information associated with a radiation treatment plan includes, for example, values of dose per voxel in a target volume, values of dose rate per voxel in the target volume, and values of parameters used when generating the values of dose per voxel and the values of dose rate per voxel. Renderings that include, for example, a rendering of an image of or including the target volume, and a rendering of selected values of the radiation treatment plan, are displayed. When a selection of a region of one of the renderings is received, a displayed characteristic of another one of the renderings is changed based on the selection.

First claim

What is claimed is:

1 . One or more non-transitory computer-readable storage medium storing computer-executable instruction when executed by a computer system perform a radiation treatment planning method comprising:
displaying, on a display device of the computer system, a first and a second rendering, wherein the first rendering includes an image of a target volume using a first display characteristic, and wherein the second rendering includes parameter values of a radiation treatment plan for the target volume using a second display characteristic; and in response to receiving an input comprising a selection of a sub-region of a given one of the first or second rendering, changing the given one of the first or second display characteristic of the corresponding sub-region of the other one of the first or second rendering.

2 . The one or more non-transitory computer-readable storage medium storing computer-executable instruction when executed by the computer system perform the radiation treatment planning method according to claim 1 , wherein the second rendering comprises a dose-dose rate scatter plot.

3 . The one or more non-transitory computer-readable storage medium storing computer-executable instruction when executed by the computer system perform the radiation treatment planning method according to claim 2 , wherein voxels in the scatter plot are voxels intersected by more than a threshold number of beams of radiation.

4 . The one or more non-transitory computer-readable storage medium storing computer-executable instruction when executed by the computer system perform the radiation treatment planning method according to claim 1 , wherein the second rendering comprises a dose-volume histogram.

5 . The one or more non-transitory computer-readable storage medium storing computer-executable instruction when executed by the computer system perform the radiation treatment planning method according to claim 1 , wherein the second rendering comprises a dose rate-volume histogram.

6 . The one or more non-transitory computer-readable storage medium storing computer-executable instruction when executed by the computer system perform the radiation treatment planning method according to claim 1 , wherein the second rendering comprises a rendering showing locations in the target volume intersected by a beam of radiation.

7 . The one or more non-transitory computer-readable storage medium storing computer-executable instruction when executed by the computer system perform the radiation treatment planning method according to claim 6 , wherein the locations in the second rendering are locations where the beam of radiation delivers more than a threshold amount of dose.

8 . The one or more non-transitory computer-readable storage medium storing computer-executable instruction when executed by the computer system perform the radiation treatment planning method according to claim 6 , wherein the locations in the second rendering are locations where the beam of radiation delivers more than a threshold dose rate.

9 . The one or more non-transitory computer-readable storage medium storing computer-executable instruction when executed by the computer system perform the radiation treatment planning method according to claim 1 , wherein the parameter values of the radiation treatment plan include one or more from a group consisting of dose per voxel in a target volume, dose rate per voxel in the target volume, and relative biological effectiveness (RBE) per voxel.

10 . The one or more non-transitory computer-readable storage medium storing computer-executable instruction when executed by the computer system perform the radiation treatment planning method according to claim 1 , wherein the first and second displayed characteristic are selected from the group consisting of: color; pattern; gray-scale; alphanumeric text; and brightness.

11 . A computer system comprising:
a processor; a display device coupled to the processor; and a memory coupled to the processor and storing instructions that when executed by the processor perform a method comprising: displaying, on the display device of the computer system, a first and a second rendering, wherein the first rendering includes an image of a target volume using a first display characteristic, and wherein the second rendering includes parameter values of a radiation treatment plan for the target volume using a second display characteristic; and in response to receiving an input comprising a selection of a sub-region of a given one of the first or second rendering, changing the given one of the first or second display characteristic of the corresponding sub-region of the other one of the first or second rendering.

12 . The computer system of claim 11 , wherein the second rendering comprises a dose-dose rate scatter plot.

13 . The computer system of claim 12 , wherein voxels in the scatter plot are voxels intersected by more than a threshold number of beams of radiation.

14 . The computer system of claim 11 , wherein the second rendering comprises a rendering of a dose-volume histogram.

15 . The computer system of claim 11 , wherein the second rendering comprises a rendering of a dose rate-volume histogram.

16 . The computer system of claim 11 , wherein the second rendering comprises a relative biological effectiveness (RBE) per voxel-dose rate scatter plot.

17 . The computer system of claim 11 , wherein the second rendering comprises a rendering showing locations in the target volume intersected by a beam of radiation.

18 . The computer system of claim 17 , wherein the locations in the second rendering are locations where the beam delivers more than a threshold amount of dose.

19 . The computer system of claim 17 , wherein the locations in the second rendering are locations where the beam delivers more than a threshold dose rate.

Assignees

• Varian Medical Systems Int Ag
• Varian Med Sys Inc

Inventors

• Petaja Viljo
• Magliari Anthony
• Lansonneur Pierre
• Perez Jessica
• Rossi Michiko
• Folkerts Michael

Classifications

• A61N5/1045

  using a multi-leaf collimator, e.g. for intensity modulated radiation therapy or IMRT · CPC title

• A61N5/1048

  Monitoring, verifying, controlling systems and methods · CPC title

• A61N2005/1074

  Details of the control system, e.g. user interfaces · CPC title

• A61N5/1031 Primary

  using a specific method of dose optimization · CPC title

• G16H50/50

  for simulation or modelling of medical disorders · CPC title