Image-based flat panel alignment
First Claim
1. A method comprising:
- determining a first misalignment between an imaging device and an axis of a radiation beam emitted from a treatment head;
determining a rotational misalignment between the imaging device and the radiation beam within a plane normal to the axis of the radiation beam;
acquiring an image using the imaging device; and
modifying the acquired image based on the determined first misalignment and rotational misalignment.
1 Assignment
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Accused Products
Abstract
Some embodiments include determination of a first misalignment between an imaging device and an axis of a radiation beam emitted from a treatment head, determination of a rotational misalignment between the imaging device and the treatment head within a plane normal to the axis of the radiation beam, acquisition of an image using the imaging device, and modification of the acquired image based on the determined first misalignment and rotational misalignment. Embodiments may further include determination of a second rotational misalignment between the imaging device and the plane normal to the axis of the radiation beam, and modification of the acquired image based on the determined first misalignment, rotational misalignment and second rotational misalignment.
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Citations
30 Claims
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1. A method comprising:
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determining a first misalignment between an imaging device and an axis of a radiation beam emitted from a treatment head; determining a rotational misalignment between the imaging device and the radiation beam within a plane normal to the axis of the radiation beam; acquiring an image using the imaging device; and modifying the acquired image based on the determined first misalignment and rotational misalignment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An apparatus comprising:
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a treatment head to emit a radiation beam; an imaging device to acquire an image based on the radiation beam; and a processing device to; determine a first misalignment between the imaging device and an axis of the radiation beam; determine a rotational misalignment between the imaging device and the treatment head within a plane normal to the axis of the radiation beam; and modify the acquired image based on the determined first misalignment and rotational misalignment. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A medium storing program code, the program code comprising:
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code to determine a first misalignment between an imaging device and an axis of a radiation beam emitted from a treatment head; code to determine a rotational misalignment between the imaging device and the treatment head within a plane normal to the axis of the radiation beam; code to acquire an image using the imaging device; and code to modify the acquired image based on the determined first misalignment and rotational misalignment. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30)
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Specification