Treatment planning method and apparatus for radiation therapy
AssigneeUniversity of Southampton
InventorMichael Surridge
Life of this patent
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Abstract
A radiation modeling apparatus comprises; a storage means (350, 360) containing details of material properties of at least one medium (100, 105, 110) which may undergo irradiation and details of the properties of at least one radiation beam (45a, 45b, 45c) operable to irradiate the media; a stochastic modeling kernel (340) operable to receive parameters of an irradiation and calculate a distribution of radiation (380) resulting from the irradiation using data from the storage means (350, 360); characterized by a filter (370) arranged so as to remove components comprising substantially statistical noise from the output of the modeling kernel (340).
Claims18
A radiation modeling apparatus for providing simulation data of a desired resolution, comprising:
- a stochastic modeling kernel operable to receive parameters of an irradiation, data representing a radiation source and data representing material properties of a medium to undergo the irradiation and to calculate a distribution of radiation energy or dosage resulting from the irradiation, a physical process associated with interaction between the irradiation and the medium having a defined length of action;
- and
- a filter having a length scale comparable to the length of action and arranged so as to remove components comprising substantially statistical noise from the output of the modeling kernel so as to reduce computation time required to produce simulation data of the desired resolution.
A radiotherapy treatment planning apparatus for providing simulation data, comprising:
- a stochastic modeling kernel operable to receive parameters of an irradiation, data representing a radiation source and data representing material properties of a medium to undergo the irradiation and to calculate a distribution of radiation energy or dosage resulting from the irradiation, a physical process associated with interaction between the irradiation and the medium having a defined length of action;
- a filter having a length scale comparable to the length of action and arranged so as to remove components comprising substantially statistical noise from the output of the modeling kernel so as to reduce computation time required to produce simulation data of the desired resolution;
- and
- a user interface operable to edit data input to the modeling kernel and display data output from the filter.
A method of calculating energy or dosage deposited from a radiation beam comprising:
- executing a stochastic simulation on a computing means to determine the amount of energy or dosage deposited in a substance as a result of a radiation beam incident on the substance;
- and
- filtering the output of the stochastic simulation to remove components, comprising substantially statistical noise, with the filtering having a length scale comparable to a length of action associated with a physical process occurring between the radiation beam and the substance.
Dependencies are inferred from the claim text.