Treatment planning system, device for calculating a scanning path and particle therapy system
First Claim
1. A treatment planning system for creating treatment plan information for particle therapy, comprising:
- an input device;
an arithmetic device for performing arithmetic processing based on a result of input to the input device and creating treatment plan information; and
a display device for displaying the treatment plan information;
wherein the arithmetic device calculates a scanning path by setting a pre-specified direction as a main direction for scanning irradiation positions with an ion beam using scanning magnets, the pre-specified direction being along a direction of movement of a target of treatment.
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Abstract
In a particle therapy treatment planning system for creating treatment plan data, the movement of a target (patient'"'"'s affected area) is extracted from plural tomography images of the target, and the direction of scanning is determined by projecting the extracted movement on a scanning plane scanned by scanning magnets. Irradiation positions are arranged on straight lines parallel with the scanning direction making it possible to calculate a scanning path for causing scanning to be made mainly along the direction of movement of the target. The treatment planning system can thereby realize dose distribution with improved uniformity.
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Citations
15 Claims
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1. A treatment planning system for creating treatment plan information for particle therapy, comprising:
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an input device; an arithmetic device for performing arithmetic processing based on a result of input to the input device and creating treatment plan information; and a display device for displaying the treatment plan information; wherein the arithmetic device calculates a scanning path by setting a pre-specified direction as a main direction for scanning irradiation positions with an ion beam using scanning magnets, the pre-specified direction being along a direction of movement of a target of treatment. - View Dependent Claims (2, 3, 4, 5)
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6. A particle therapy system for irradiating an affected area of a patient with an ion beam, comprising:
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an input device; a central control unit calculates a scanning path based on a result of input to the input device as a main direction for scanning irradiation positions with the ion beam using scanning magnets; an irradiation control system controls to change the calculated scanning path of the ion beam by controlling the scanning magnets based on the direction of movement of a target of treatment, but still scans the same irradiation positions calculated by the central control unit. - View Dependent Claims (13, 14, 15)
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7. A device for calculating a scanning path for particle irradiation comprising:
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an input device for inputting data relating to a target area movement; an arithmetic device for performing arithmetic processing based on a result of data input of the input device and creating scanning path information for the target area; and a display device for displaying the scanning path information; wherein the arithmetic device calculates a scanning path by setting a pre-specified direction as a main direction for scanning irradiation positions with an ion beam using scanning magnets, the pre-specified direction being along a direction of the target area movement. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification