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Methods and apparatus for the planning and delivery of radiation treatments

  • US 9,687,673 B2
  • Filed: 09/15/2016
  • Issued: 06/27/2017
  • Est. Priority Date: 07/25/2005
  • Status: Active Grant
First Claim
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1. A system for delivery of a 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;

    a controller configured to cause, according to a radiation delivery plan;

    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; and

    the treatment radiation source to vary 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 while causing the movement mechanism to effect relative movement between the treatment radiation source and the subject along the trajectory;

    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;

    to thereby deliver a dose to the subject according to the radiation delivery plan.

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