IP Library Granted Patent US 12,020,822
Granted Patent B2
US 12,020,822 · App. 16/112,736 · Granted Jun 25, 2024

Imaging waypoints for radiation treatment

Inventors: Dominique Oliver Gasser (Oberrohrdorf, CH); Janne I. Nord (Espoo, FI); Joakim Olavi Pyyry (Helsinki, FI)
Assignee: SIEMENS HEALTHINEERS INTERNATIONAL AG
G16H50/50A61N5/103A61N5/1049G16H20/40G06T11/206
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Quick Facts
Patent No.
US 12,020,822
App. No.
16/112,736
Granted
Jun 25, 2024
Kind
B2
Abstract

An apparatus for treatment planning and/or treatment setup includes: a simulator configured to obtain a first model representing a first component of a medical system, and virtually move the first model to simulate a movement of the first component of the medical system; an analyzer configured to determine imaging waypoints during a treatment process based on the virtual movement of the first model; and a graphic generator configured to generate a graphic based on the determined imaging waypoints.

Claims (37)

1. An apparatus for treatment planning and/or for treatment setup, comprising:

at least one processor and memory comprising executable instructions that cause the at least one processor to;

obtain a first model representing a first component of a medical system, and virtually move the first model to simulate a treatment movement of the first component of the medical system, wherein the treatment movement corresponds to movement of the first component to deliver treatment radiation to a target tissue;

receive, via an input user interface, one or more user-defined parameters comprising a user-defined amount of imaging coverage and a user-defined imaging source type, wherein the amount of imaging coverage corresponds to an amount of imaging to be performed relative to the delivery of the treatment radiation;

determine imaging waypoints based on the virtual movement of the first model and on the one or more user-defined imaging parameters, wherein the imaging waypoints indicate imaging opportunities to perform imaging during the treatment movement; and

generate a graphic user interface displaying the determined imaging waypoints before the imaging is performed, wherein the determined imaging waypoints are selectable in the graphic user interface.

2. The apparatus of claim 1 , wherein the executable instructions also cause the at least one processor to obtain a second model representing a patient support, and virtually move the second model to simulate a movement of the patient support; wherein the determination of the imaging waypoints is further based on the virtual movement of the second model.

3. The apparatus of claim 1 , wherein the executable instructions also cause the at least one processor to obtain a surface model of a patient, and virtually move the surface model to simulate a movement of the patient due to a movement of a patient support.

4. The apparatus of claim 1 , wherein the executable instructions also cause the at least one processor to determine a set of system configurations which do not result in a collision of the first component with another component of the medical system.

5. The apparatus of claim 1 , wherein the imaging waypoints comprise a first set of imaging waypoints and a second set of imaging waypoints, and wherein the analyzer is configured to determine the first set of imaging waypoints for a first type of imaging, and to determine the second set of imaging waypoints for a second type of imaging.

6. The apparatus of claim 5 , wherein the first type of imaging comprises kV-imaging, and the second type of imaging comprises MV-imaging.

7. The apparatus of claim 5 , wherein the first type of imaging is room-based imaging, gantry-based imaging, or couch-based imaging.

8. The apparatus of claim 1 , wherein the graphic user interface presents the imaging waypoints as control point indices, wherein the control point indices comprise or represent: gantry angles, couch angles, time points, or doses.

9. The apparatus of claim 1 , wherein the graphic user interface shows the imaging waypoints in relation with different imaging distances.

10. The apparatus of claim 9 , wherein the imaging distance and the imaging waypoints define one or more two-dimensional areas in the graphic user interface.

11. The apparatus of claim 1 , wherein the graphic user interface shows the imaging waypoints in relation with different angle offsets between two kV-imager positions of a same imager or of different respective imagers.

12. The apparatus of claim 1 , wherein the executable instructions also cause the processor to determine a gantry angle of a gantry associated with a treatment energy source as a function of control point index.

13. The apparatus of claim 12 , wherein the executable instructions also cause the at least one processor to provide a diagram indicating the gantry angle as the function of the control point index.

14. The apparatus of claim 12 , wherein the executable instructions also cause the at least one processor to determine a couch angle of a couch as a function of control point index.

15. The apparatus of claim 14 , wherein the executable instructions also cause the at least one processor to provide a diagram indicating both the gantry angle and the couch angle as the function of the control point index.

16. The apparatus of claim 14 , wherein the executable instructions also cause the at least one processor to provide a diagram indicating how the couch angle varies in relation to the gantry angle.

17. The apparatus of claim 1 , wherein the graphic user interface is configured to allow a user to select one or more imaging arrangement(s) for a treatment plan.

18. The apparatus of claim 1 , wherein the graphic user interface shows the imaging waypoints in relation with different source-to-imager distances (SIDs).

19. The apparatus of claim 1 , wherein the imaging waypoints indicate the imaging opportunities to allow a user of the apparatus to selectively decide whether to prescribe the imaging.

20. The apparatus of claim 1 , wherein the determined imaging waypoints comprise imaging waypoints that does not require the first component of the medical system to move to perform imaging.

21. A method for treatment planning and/or for treatment setup, comprising:

obtaining a first model representing a first component of a medical system;

virtually moving the first model to simulate a treatment movement of the first component of the medical system, wherein the treatment movement corresponds to movement of the first component to deliver treatment radiation to a target tissue;

obtaining, via an input user interface, one or more user-defined parameters comprising a user-defined amount of imaging coverage and a user-defined imaging source type, wherein the amount of imaging coverage corresponds to an amount of imaging to be performed relative to the delivery of the treatment radiation;

determining imaging waypoints based on the virtual movement of the first model and on one or more user-defined imaging parameters, wherein the imaging waypoints indicate imaging opportunities to perform imaging during the treatment movement; and

generating a graphic user interface displaying the determined imaging waypoints before the imaging is performed, wherein the determined imaging waypoints are selectable in the graphic user interface.

22. A product having a non-transitory medium storing a set of instructions, an execution of which by a processing unit causes a method to be performed during treatment planning and/or treatment setup, the method comprising:

obtaining a first model representing a first component of a medical system;

virtually moving the first model to simulate a treatment movement of the first component of the medical system, wherein the treatment movement corresponds to movement of the first component to deliver treatment radiation to a target tissue;

obtaining, via an input user interface, one or more user-defined parameters comprising a user-defined amount of imaging coverage and a user-defined imaging source type, wherein the amount of imaging coverage corresponds to an amount of imaging to be performed relative to the delivery of the treatment radiation;

determining imaging waypoints based on the virtual movement of the first model and on one or more user-defined imaging parameters, wherein the imaging waypoints indicate imaging opportunities to perform imaging during the treatment movement; and

generating a graphic user interface displaying the determined imaging waypoints before the imaging is performed, wherein the determined imaging waypoints are selectable in the graphic user interface.

Assignments (2)
CHANGE OF NAME Recorded Jan 26, 2023
From: VARIAN MEDICAL SYSTEMS INTERNATIONAL AG
To: SIEMENS HEALTHINEERS INTERNATIONAL AG
Reel/Frame 062513/0423 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 13, 2019
From: GASSER, DOMINIQUE OLIVER; NORD, JANNE I.; PYYRY, JOAKIM OLAVI
To: VARIAN MEDICAL SYSTEMS INTERNATIONAL AG
Reel/Frame 050042/0953 →
Continuity (1)
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