Methods and apparatus for the planning and delivery of radiation treatments
First Claim
1. A system for delivery of radiation dose to a target area within a subject, the system comprising:
- a treatment radiation source for outputting a treatment radiation beam;
a support for supporting the subject;
a movement mechanism for moving the treatment radiation source relative to the subject along a trajectory;
one or more sensors for monitoring a position of the subject;
a controller configured, in accordance with a radiation delivery plan, to;
cause the treatment radiation source to deliver the treatment radiation beam to the subject while causing the movement mechanism to effect relative movement between the treatment radiation source and the subject along the trajectory;
while causing the movement mechanism to effect relative movement between the treatment radiation source and the subject along the trajectory, cause the treatment radiation source to vary at least one of an intensity of the treatment radiation beam by varying a radiation output rate of the treatment radiation source according to the radiation delivery plan over at least a portion of the trajectory and a shape of the radiation treatment beam over at least a portion of the trajectory;
determine the position from one or more signals received from the one or more sensors;
deactivate delivery of the treatment radiation beam upon determining that the position is outside of an acceptable range; and
reactivate delivery of the treatment radiation beam upon determining that the position is within the acceptable range;
to thereby deliver dose to the subject according to the radiation delivery plan.
2 Assignments
0 Petitions
Accused Products
Abstract
Systems for delivering radiation dose to a target area within a subject comprise: a radiation source for outputting a radiation beam; a support for supporting the subject; a movement mechanism for moving the radiation source relative to the subject along a trajectory; one or more sensors for monitoring a position of the subject; and a controller configured, in accordance with a radiation delivery plan, to: determine the position from one or more signals received from the one or more sensors; deactivate delivery of the treatment radiation beam upon determining that the position is outside of an acceptable range; and reactivate delivery of the treatment radiation beam upon determining that the position is within the acceptable range, to thereby deliver dose to the subject according to the radiation delivery plan.
-
Citations
30 Claims
-
1. A system for delivery of radiation dose to a target area within a subject, the system comprising:
-
a treatment radiation source for outputting a treatment radiation beam; a support for supporting the subject; a movement mechanism for moving the treatment radiation source relative to the subject along a trajectory; one or more sensors for monitoring a position of the subject; a controller configured, in accordance with a radiation delivery plan, to; cause the treatment radiation source to deliver the treatment radiation beam to the subject while causing the movement mechanism to effect relative movement between the treatment radiation source and the subject along the trajectory; while causing the movement mechanism to effect relative movement between the treatment radiation source and the subject along the trajectory, cause the treatment radiation source to vary at least one of an intensity of the treatment radiation beam by varying a radiation output rate of the treatment radiation source according to the radiation delivery plan over at least a portion of the trajectory and a shape of the radiation treatment beam over at least a portion of the trajectory; determine the position from one or more signals received from the one or more sensors; deactivate delivery of the treatment radiation beam upon determining that the position is outside of an acceptable range; and reactivate delivery of the treatment radiation beam upon determining that the position is within the acceptable range; to thereby deliver dose to the subject according to the radiation delivery plan. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
-
-
18. A system for delivery of radiation dose to a target area within a subject, the system comprising:
-
a treatment radiation source for outputting a treatment radiation beam; a support for supporting the subject; a movement mechanism for moving the treatment radiation source relative to the subject along a trajectory; one or more sensors for monitoring a position of the subject; a controller configured, in accordance with a radiation delivery plan, to; cause the treatment radiation source to deliver the treatment radiation beam to the subject while causing the movement mechanism to effect relative movement between the treatment radiation source and the subject along the trajectory; while causing the movement mechanism to effect relative movement between the treatment radiation source and the subject along the trajectory, cause the treatment radiation source to vary at least one of an intensity of the treatment radiation beam by varying a radiation output rate of the treatment radiation source according to the radiation delivery plan over at least a portion of the trajectory and a shape of the radiation treatment beam over at least a portion of the trajectory; determine the position from one or more signals received from the one or more sensors; deactivate delivery of the treatment radiation beam upon determining that the position is outside of an acceptable range; and reactivate delivery of the treatment radiation beam upon determining that the position is within the acceptable range; to thereby deliver dose to the subject according to the radiation delivery plan; wherein a start of the trajectory and an end of the trajectory comprise a same relative position between the treatment radiation source and the subject and the movement mechanism effects otherwise non-self-overlapping relative movement between the treatment radiation source and the subject along the trajectory.
-
-
19. A system for delivery of radiation dose to a target area within a subject, the system comprising:
-
a treatment radiation source for outputting a treatment radiation beam; a support for supporting the subject; a movement mechanism for moving the treatment radiation source relative to the subject along a trajectory; one or more sensors for monitoring a respiratory cycle of the subject; a controller configured, in accordance with a radiation delivery plan, to; cause the treatment radiation source to deliver the treatment radiation beam to the subject while causing the movement mechanism to effect relative movement between the treatment radiation source and the subject along the trajectory; while causing the movement mechanism to effect relative movement between the treatment radiation source and the subject along the trajectory, cause the treatment radiation source to vary at least one of an intensity of the treatment radiation beam by varying a radiation output rate of the treatment radiation source according to the radiation delivery plan over at least a portion of the trajectory and a shape of the radiation treatment beam over at least a portion of the trajectory; deactivate delivery of the treatment radiation beam upon determining that the respiratory cycle of the subject has moved a location of the target area outside of an acceptable range; and reactivate delivery of the treatment radiation beam upon determining that the respiratory cycle of the subject has moved the location of the target area to within the acceptable range; to thereby deliver dose to the subject according to the radiation delivery plan. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
-
-
30. A system for delivery of radiation dose to a target area within a subject, the system comprising:
-
a treatment radiation source for outputting a treatment radiation beam; a support for supporting the subject; a movement mechanism for moving the treatment radiation source relative to the subject along a trajectory; one or more sensors for monitoring a respiratory cycle of the subject; a controller configured, in accordance with a radiation delivery plan, to; cause the treatment radiation source to deliver the treatment radiation beam to the subject while causing the movement mechanism to effect relative movement between the treatment radiation source and the subject along the trajectory; while causing the movement mechanism to effect relative movement between the treatment radiation source and the subject along the trajectory, cause the treatment radiation source to vary at least one of an intensity of the treatment radiation beam by varying a radiation output rate of the treatment radiation source according to the radiation delivery plan over at least a portion of the trajectory and a shape of the radiation treatment beam over at least a portion of the trajectory; deactivate delivery of the treatment radiation beam upon determining that the respiratory cycle of the subject has moved a location of the target area outside of an acceptable range; and reactivate delivery of the treatment radiation beam upon determining that the respiratory cycle of the subject has moved the location of the target area to within the acceptable range; to thereby deliver dose to the subject according to the radiation delivery plan; wherein the trajectory comprises a non-self-overlapping trajectory which involves non-self-overlapping relative movement between the treatment radiation source and the subject.
-
Specification