Using a rotating 2D X-ray imager as an imaging device to perform target tracking during radiation treatment delivery
A method includes receiving, from a volumetric imager, a first image including a target of a patient. The method further includes receiving a second image including the target of the patient. The method further includes tracking, by a processing device, a position of the target using the first image and the second image.
1. A method, comprising:
receiving, from a volumetric imager, a first image including a target of a patient;
receiving a second image including the target of the patient; and
tracking, by a processing device, a position of the target using the first image and the second image, wherein performing the tracking comprises: maintaining an orthogonal alignment between a treatment beam of a linear accelerator (LINAC) and a source and detector pair of the volumetric imager during a radiation treatment.
2. The method of claim 1 , wherein the first image is a three-dimensional (3D) intrafraction image, and wherein the 3D intrafraction image is one of: a kilovoltage cone beam computed tomography (kV-CBCT) image, a megavoltage cone beam computed tomography (MV-CBCT) image, or a megavoltage computed tomography (MVCT) image.
3. The method of claim 1 , wherein the second image is received from one of: the volumetric imager or a static x-ray imager.
4. The method of claim 1 , further comprising:
retracting the volumetric imager to a retracted position while the treatment beam is active;
maintaining the orthogonal alignment between the LINAC and the volumetric imager while the volumetric imager is in the retracted position; and
extending the volumetric imager to an extended position while the treatment beam is inactive.
5. The method of claim 1 , further comprising: maintaining the orthogonal alignment between the LINAC and the volumetric imager while the volumetric imager is in an extended position and the treatment beam is active.
6. A method, comprising:
receiving, from a volumetric imager, a first image including a target of a patient;
receiving a second image including the target of the patient;
tracking, by a processing device, a position of the target using the first image and the second image, and
delivering a radiation treatment according to a radiation treatment plan, wherein the radiation treatment plan identifies a set of positions for a linear accelerator (LINAC) during the radiation treatment delivery, and wherein the set of positions for the LINAC is a filtered set of positions comprising positions that are equal to or greater than an imaging flexibility threshold.
7. A method, comprising:
receiving, from a volumetric imager, a first image including a target of a patient;
receiving a second image including the target of the patient; and tracking, by a processing device, a position of the target using the first image and the second image, wherein the first image is a megavoltage (MV) portal image.
8. The method of claim 7 , further comprising: maintaining a direct alignment between a treatment beam of a linear accelerator (LINAC) and a detector of the volumetric imager, such that the treatment beam is to hit an approximately center position of the detector.
9. The method of claim 8 , wherein the volumetric imager comprises a source and the detector and wherein the method further comprises modifying a position of the source of the volumetric imager to avoid contact between the LINAC and the source, and the treatment beam and the source.
10. A radiation treatment delivery system comprising:
a volumetric imager to acquire a first image of a target within a patient;
a linear accelerator (LINAC) to deliver a radiation treatment; and
a processing device, operatively coupled with the volumetric imager and the LINAC, to:
receive, from the volumetric imager, the first image;
receive a second image including the target; and
track a position of the target using the first image and the second image, wherein to
track the position of the target, the processing device is to:
maintain an orthogonal alignment between a treatment beam of the LINAC and a source and detector pair of the volumetric imager during a radiation treatment.
11. The system of claim 10 , the processing device further to:
retract the volumetric imager to a retracted position while the treatment beam is active;
maintain the orthogonal alignment between the LINAC and the volumetric imager while the volumetric imager is in the retracted position; and
extend the volumetric imager to an extended position while the treatment beam is inactive.
12. The system of claim 10 , the processing device further to: maintain the orthogonal alignment between the LINAC and the volumetric imager while the volumetric imager is in an extended position and the treatment beam is active.
13. A radiation treatment delivery system comprising:
a volumetric imager to acquire a first image of a target within a patient;
a linear accelerator (LINAC) to deliver a radiation treatment; and
a processing device, operatively coupled with the volumetric imager and the LINAC, to:
receive, from the volumetric imager, the first image;
receive a second image including the target; and
track a position of the target using the first image and the second image; and
a static x-ray imager, wherein the second image is received from the static x-ray imager.
14. The system of claim 13 , wherein the first image is a three-dimensional (3D) intrafraction image, and wherein the 3D intrafraction image is one of: a kilovoltage cone beam computed tomography (kV-CBCT) image, a megavoltage cone beam computed tomography (MV-CBCT) image, or a megavoltage computed tomography (MVCT) image.
15. A radiation treatment delivery system comprising:
a volumetric imager to acquire a first image of a target within a patient, wherein the first image is a megavoltage (MV) portal image;
a linear accelerator (LINAC) to deliver a radiation treatment; and
a processing device, operatively coupled with the volumetric imager and the LINAC, to:
receive, from the volumetric imager, the first image;
receive a second image including the target; and
track a position of the target using the first image and the second image.
16. The system of claim 15 , the processing device further to: maintain a direct alignment between a treatment beam of the LINAC and a detector of the volumetric imager, such that the treatment beam is to hit an approximately center position of the detector.
17. The system of claim 16 , wherein the volumetric imager comprises a source and the detector and wherein the processing device is further to modify a position of the source of the volumetric imager to avoid contact between the LINAC and the source, and the treatment beam and the source.
18. A non-transitory computer readable medium comprising instructions that, when executed by a processing device, cause the processing device to:
receive, from a volumetric imager, a first image including a target of a patient;
receive a second image including the target of the patient;
track, by the processing device, a position of the target using the first image and the second image; and
deliver a radiation treatment according to a radiation treatment plan, wherein the radiation treatment plan identifies a set of positions for a linear accelerator (LINAC) during the radiation treatment delivery, and wherein the set of positions for the LINAC is a filtered set of positions comprising positions that are equal to or greater than an imaging flexibility threshold.
19. A non-transitory computer readable medium comprising instructions that, when executed by a processing device, cause the processing device to:
receive, from a volumetric imager, a first image including a target of a patient;
receive a second image including the target of the patient; and
track, by the processing device, a position of the target using the first image and the second image, wherein the first image is a megavoltage (MV) portal image.
20. The non-transitory computer readable medium of claim 19 , wherein the second image is received from one of: the volumetric imager or a static x-ray imager.
21. The non-transitory computer readable medium of claim 19 , wherein to track the position of the target, the processing device is to: maintain an orthogonal alignment between a treatment beam of a linear accelerator (LINAC) and a source and detector pair of the volumetric imager during a radiation treatment.
22. The non-transitory computer readable medium of claim 21 , the processing device further to:
retract the volumetric imager to a retracted position while the treatment beam is active;
maintain the orthogonal alignment between the LINAC and the volumetric imager while the volumetric imager is in the retracted position; and
extend the volumetric imager to an extended position while the treatment beam is inactive.
23. The non-transitory computer readable medium of claim 21 , the processing device further to: maintain the orthogonal alignment between the LINAC and the volumetric imager while the volumetric imager is in an extended position and the treatment beam is active.
24. The non-transitory computer readable medium of claim 19 , the processing device further to: maintain a direct alignment between a treatment beam of a linear accelerator (LINAC) and a detector of the volumetric imager, such that the treatment beam is to hit an approximately center position of the detector.
25. The non-transitory computer readable medium of claim 24 , wherein the volumetric imager comprises a source and the detector and wherein the processing device is further to modify a position of the source of the volumetric imager to avoid contact between the LINAC and the source, and the treatment beam and the source.