Dose calculation method for multiple fields
First Claim
1. A computer implemented method of developing a treatment plan for the delivery of a desired dose of radiation to a treatment volume within a patient comprising:
- receiving a desired dose, the desired dose including a desired amount of radiation to deliver to the treatment volume;
receiving a specification of an initial plurality of control points;
calculating a dose corresponding to the initial plurality of control points;
comparing the desired dose with the calculated dose to determine the effect each control point of the initial plurality of control points has on the comparison;
selecting a subset of the initial plurality of control points based on the comparison; and
consolidating the subset of the initial plurality of control points into a lesser number of effective control points, wherein a calculated dose corresponding to the subset of the control points and a calculated dose corresponding to the lesser number of effective control points is substantially the same.
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Accused Products
Abstract
Systems and methods for developing a treatment plan for irradiating a treatment volume within a patient are disclosed. In accordance with the present invention, control points used to calculate a dose of radiation delivered to the treatment volume may be combined to result in a smaller number of control points. The smaller number of control points may allow more efficient calculation of dose distributions resulting in a treatment plan that can be delivered to the patient earlier or may allow additional iterations of treatment plan optimization resulting in a more accurate dose distribution being delivered to the patient.
161 Citations
20 Claims
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1. A computer implemented method of developing a treatment plan for the delivery of a desired dose of radiation to a treatment volume within a patient comprising:
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receiving a desired dose, the desired dose including a desired amount of radiation to deliver to the treatment volume; receiving a specification of an initial plurality of control points; calculating a dose corresponding to the initial plurality of control points; comparing the desired dose with the calculated dose to determine the effect each control point of the initial plurality of control points has on the comparison; selecting a subset of the initial plurality of control points based on the comparison; and consolidating the subset of the initial plurality of control points into a lesser number of effective control points, wherein a calculated dose corresponding to the subset of the control points and a calculated dose corresponding to the lesser number of effective control points is substantially the same. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A computer readable medium containing a program of instructions for execution by a computer, the program having instructions for performing the steps of:
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receiving a desired dose, the desired dose including a desired amount of radiation to deliver to the treatment volume; receiving a specification of an initial plurality of control points; calculating a dose corresponding to the initial plurality of control points; comparing the desired dose with the calculated dose to determine the effect each control point of the initial plurality of control points has on the comparison; selecting a subset of the initial plurality of control points based on the comparison; and consolidating the subset of the initial plurality of control points into a lesser number of effective control points, wherein a calculated dose corresponding to the subset of the control points and a calculated dose corresponding to the lesser number of effective control points is substantially the same. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A system for developing a treatment plan for the delivery of a desired dose of radiation to a treatment volume within a patient, the system comprising:
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a processor; and a memory coupled to the processor, the memory including instructions executed by the processor to cause the processor to perform the steps of receiving a desired dose, the desired dose including a desired amount of radiation to deliver to the treatment volume, receiving a specification of an initial plurality of control points, calculating a dose corresponding to the initial plurality of control points, comparing the desired dose with the calculated dose to determine the effect each control point of the initial plurality of control points has on the comparison, selecting a subset of the initial plurality of control points based on the comparison, and consolidating the subset of the initial plurality of control points into a lesser number of effective control points, wherein a calculated dose corresponding to the subset of the control points and a calculated dose corresponding to the lesser number of effective control points is substantially the same. - View Dependent Claims (18, 19, 20)
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Specification