System and a method for verifying a treatment plan
First Claim
1. A method for determining an energy fluence correction in a quality assurance system for a radiation therapy apparatus, comprising:
- receiving a treatment plan description;
generating a set of measured phantom dose values;
generating a set of determined phantom dose values by determining phantom dose values on basis of at least the treatment plan description and a phantom description, wherein said generating the set of determined phantom dose values further comprises;
determining an energy fluence on basis of the treatment plan description, andusing the energy fluence for said determination of the phantom dose values;
determining a set of phantom dose corrections on basis of at least the set of determined phantom dose values and the set of measured phantom dose values; and
determining the energy fluence correction by an inverse dose calculation on basis of at least the set of phantom dose corrections.
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Abstract
The present invention relates to a method for determining an energy fluence correction in a quality assurance system for a radiation therapy apparatus, which method comprises receiving a treatment plan description; generating a set of measured phantom dose values; generating a set of determined phantom dose values, by determining phantom dose values based on at least the treatment plan description and a phantom description; determining a set of phantom dose corrections based on at least the set of determined phantom dose values and the set of measured phantom dose values; and determining an energy fluence correction based on at least the set of phantom dose corrections. It further relates to a method for determining a reconstructed patient dose distribution based on at least the energy fluence correction, a patient description, and further data related to the treatment plan description. It also relates to corresponding quality assurance and control systems.
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Citations
15 Claims
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1. A method for determining an energy fluence correction in a quality assurance system for a radiation therapy apparatus, comprising:
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receiving a treatment plan description; generating a set of measured phantom dose values; generating a set of determined phantom dose values by determining phantom dose values on basis of at least the treatment plan description and a phantom description, wherein said generating the set of determined phantom dose values further comprises; determining an energy fluence on basis of the treatment plan description, and using the energy fluence for said determination of the phantom dose values; determining a set of phantom dose corrections on basis of at least the set of determined phantom dose values and the set of measured phantom dose values; and determining the energy fluence correction by an inverse dose calculation on basis of at least the set of phantom dose corrections. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for determining a reconstructed patient dose distribution comprising:
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determining an energy fluence correction in a quality assurance system for a radiation therapy apparatus comprising; receiving a treatment plan description, generating a set of measured phantom dose values, generating a set of determined phantom dose values, by determining phantom dose values on basis of at least the treatment plan description and a phantom description, wherein generating the set of determined phantom dose values further comprises; determining an energy fluence on basis of the treatment plan description, and using the energy fluence for said determination of the phantom dose values, determining a set of phantom dose corrections on basis of at least the set of determined phantom dose values and the set of measured phantom dose values, determining the energy fluence correction by an inverse dose calculation on basis of at least the set of phantom dose corrections; and determining the reconstructed patient dose distribution on basis of at least the energy fluence correction, a patient description, and further data related to the treatment plan description. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A quality assurance system for a radiation therapy treatment apparatus, comprising:
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a phantom to simulate a radiation therapy treatment, wherein the phantom is provided with radiation detectors; and a computing device comprising; a measuring module connected with the radiation detectors, wherein the measuring module is configured to generate a set of measured phantom dose values, an input data device, wherein the input data device is configured to receive a treatment plan description, and an output data device; wherein the computing device is configured to; generate a set of determined phantom dose values by determining phantom dose values on basis of at least the treatment plan description and a phantom description, wherein to generate the set of determined phantom dose values further comprises; determine an energy fluence on basis of the treatment plan description, and use the energy fluence for said determination of the phantom dose values; determine a set of phantom dose corrections on basis of at least the set of determined phantom dose values and the set of measured phantom dose values; and determine an energy fluence correction by an inverse dose calculation on basis of at least the set of phantom dose corrections. - View Dependent Claims (15)
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Specification