Method and apparatus for patient positioning for radiation therapy
First Claim
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1. Apparatus for treating a patient with radiation therapy treatment of a lesion within the patient'"'"'s body comprising:
- a linear accelerator, including a rotatable gantry, a treatment table, and a means for focusing a beam of radiation;
a means for immobilizing a portion of the patient with respect to the treatment table associated with the treatment table; and
a means for positioning the patient upon the treatment table, including;
a plurality of light emitting diodes, including means for mounting the plurality of light emitting diodes with respect to the patient;
at least one camera for viewing the plurality of light emitting diodes; and
means for mounting the at least one camera to the gantry of the linear acceleration, whereby as the gantry rotates, the at least one camera rotates with the gantry and views the plurality of light emitting diodes from at least two different angular positions of the gantry with respect to the treatment table.
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Abstract
A method and apparatus for positioning a patient upon a treatment table of a linear accelerator includes a camera secured to the gantry of the linear accelerator and a plurality of light emitting diodes mounted with respect to the patient which are viewed by the camera.
250 Citations
25 Claims
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1. Apparatus for treating a patient with radiation therapy treatment of a lesion within the patient'"'"'s body comprising:
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a linear accelerator, including a rotatable gantry, a treatment table, and a means for focusing a beam of radiation; a means for immobilizing a portion of the patient with respect to the treatment table associated with the treatment table; and a means for positioning the patient upon the treatment table, including; a plurality of light emitting diodes, including means for mounting the plurality of light emitting diodes with respect to the patient; at least one camera for viewing the plurality of light emitting diodes; and means for mounting the at least one camera to the gantry of the linear acceleration, whereby as the gantry rotates, the at least one camera rotates with the gantry and views the plurality of light emitting diodes from at least two different angular positions of the gantry with respect to the treatment table. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for positioning a patient upon a treatment table of a linear accelerator for providing radiation therapy treatment of a lesion within the patient'"'"'s body, the linear accelerator having a rotatable gantry, comprising the steps of:
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providing at least one camera mounted to the gantry of the linear accelerator; immobilizing a portion of the patient with respect to the treatment table with a means for immobilizing associated with the treatment table; mounting a plurality of light emitting diodes with respect to the patient; disposing the gantry, with the at least one camera mounted thereto, in a first predetermined position with respect to the patient and generating a first image of the plurality of light emitting diodes with the at least one camera; rotating the gantry, with the at least one camera mounted thereto, to a second predetermined position with respect to the patient, and generating a second image of the plurality of light emitting diodes with the at least one camera; determining, from the first and second images, the location of the light emitting diodes with respect to the treatment table; and comparing the location of the light emitting diodes with respect to the treatment table, to a previously determined desired location of the light emitting diodes with respect to the treatment table, whereby if the location of the light emitting diodes with respect to the treatment table indicates the patient is not properly positioned, the patient may be moved whereby the light emitting diodes will be disposed in the desired position. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification