METHODS AND APPARATUS FOR THE PLANNING AND DELIVERY OF RADIATION TREATMENTS

摘要

Methods for planning delivery of radiation dose to a target region within a subject comprise: initializing a first plurality of control points located on a trajectory, the trajectory comprising relative movement between a radiation source and the subject, wherein initializing the first plurality of control points comprises assigning, to each the first plurality of control points, one or more axis positions which specify a position of the radiation source relative to the subject; specifying a second plurality of control points along the trajectory, the second plurality of control points comprising a larger number of control points than the first plurality of control points; and iteratively optimizing a stimulated dose distribution over the second plurality of control points to thereby determine a radiation delivery plan by assigning each of the second plurality of control points optimized values for one or more radiation delivery parameters.

主权项

1. A method for planning delivery of radiation dose to a target region within a subject, the method comprising:
initializing, by a processor, a first plurality of control points located on a trajectory, the trajectory comprising relative movement between a treatment radiation source and the subject, wherein initializing the first plurality of control points comprises assigning, to each the first plurality of control points, one or more axis positions which specify a position of the treatment radiation source relative to the subject; specifying, by the processor, a second plurality of control points along the trajectory, the second plurality of control points comprising a larger number of control points than the first plurality of control points; and iteratively optimizing, by the processor, a simulated dose distribution relative to a set of one or more optimization goals over the second plurality of control points to thereby determine a radiation delivery plan by assigning each of the second plurality of control points optimized values for one or more radiation delivery parameters.