System and method for reducing radiation leakage with intensity modulated treatments
AssigneeSiemens Medical Systems, Inc.
InventorsJohn H. Hughes, Jonathan Yi Yao, Francisco M. Hernanez-Guerra
Life of this patent
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Abstract
A system and a method are provided for intensity modulated radiation treatment. A field on a patient (544) for irradiation is first defined. A beam of radiation (530) is then provided. This beam (530) passing through an opening defined by a beam-shielding device (540, 542). In the preferred embodiment, the beam shielding device is a single jaw (540) and a single collimator section (542). Single jaw (540) and single collimator section (542) are moved in one direction at different velocities to vary the opening for radiation beam (530). Single jaw (540) and single collimator section (542) move without rotation to provide intensity modulated radiation treatment
Claims21
A method for intensity modulated radiation treatment, comprising the steps of:
- defining an irregular field on a patient for irradiation;
- providing a beam of radiation, the beam passing through an opening defined by a single jaw and a single collimator section, and the beam treating the irregular field with radiation;
- and
- moving the single jaw and the single collimator section in one direction, the single jaw and the single collimator section moving at difference speeds to vary the opening for the radiation beam;
- wherein the single jaw and the single collimator section move without rotation to provide intensity modulated radiation treatment to the irregular field;
- whereby radiation leakage is reduced.
A method for intensity modulated radiation treatment, comprising the steps of:
- defining an irregular field on a patient for irradiation;
- providing a beam of radiation, the beam passing through an opening defined by a single collimator without jaws, the single collimator including two sections;
- and
- moving the single collimator in one direction, the sections of the single collimator moving at different speeds to vary the opening for the beam;
- wherein the single collimator moves without rotation to provide intensity modulated radiation treatment.
A method for intensity modulated radiation treatment, the method comprising the steps of:
- inputting parameters of an irregular field on a patient for irradiation;
- creating a radiation treatment plan;
- treating the irregular field with a radiation beam;
- delimiting the radiation beam with beam-shielding means, the beam-shielding means moving in the same direction;
- checking radiation which passes through the patient for discrepancies;
- and
- correcting any discrepancies.
A system for intensity modulated radiation treatment, comprising:
- means for defining an irregular field for radiation treatment:
- a radiation source for generating and outputting a radiation beam;
- and
- beam-shielding means for delimiting the radiation beam to the irregular field on a patient to be treated with radiation, the beam-shielding means moving in one direction to provide a sweeping motion;
- wherein the beam-shielding means provides for intensity modulated radiation without rotation of the beam-shielding means during radiation treatment.
Dependencies are inferred from the claim text.