Dose calculation method for multiple fields
AssigneeVarian Medical Systems International AG
InventorsSami Pekka Siljamaki, Janne Ilmari Nord, Laura Kristiina Korhonen
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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.
Claims20
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 the desired dose, the desired dose indicating a desired amount of radiation to deliver to the treatment volume over time;
- calculating a first dose to be delivered to the treatment volume over a first delivery time using a first number of control points, wherein the calculated first dose is within a specified degree of accuracy of the desired dose;
- and
- calculating a second dose to be delivered to the treatment volume, wherein the second dose is delivered over a second delivery time, the second delivery time being less than the first delivery time.
A non-transitory computer readable medium containing a program of instructions for execution by a computer, the program having instructions for performing the steps of:
- receiving the desired dose, the desired dose indicating a desired amount of radiation to deliver to the treatment volume over time;
- calculating a first dose to be delivered to the treatment volume over a first delivery time using a first number of control points, wherein the calculated first dose is within a specified degree of accuracy of the desired dose;
- and
- calculating a second dose to be delivered to the treatment volume, wherein the second dose is delivered over a second delivery time, the second delivery time being less than the first delivery time.
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 the desired dose, the desired dose indicating a desired amount of radiation to deliver to the treatment volume;
- calculating a first dose to be delivered using a first number of control points wherein the calculated first dose is within a specified degree of accuracy of the desired dose;
- and
- calculating a second dose using a second number of control points, the second number of control points including a portion of the first number of control points, wherein the calculated second dose is within a specified degree of accuracy of the desired dose.
A non-transitory computer readable medium containing a program of instructions for execution by a computer, the program having instructions for performing the steps of:
- receiving the desired dose, the desired dose indicating a desired amount of radiation to deliver to the treatment volume;
- calculating a first dose to be delivered using a first number of control points wherein the calculated first dose is within a specified degree of accuracy of the desired dose;
- and
- calculating a second dose using a second number of control points, the second number of control points including a portion of the first number of control points, wherein the calculated second dose is within a specified degree of accuracy of the desired dose.
Dependencies are inferred from the claim text.