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US 6,783,275 B2Granted
Verification of radiation and light field congruence
AssigneeSiemens Medical Solutions USA, Inc.
InventorFarhad Abbasi Ghelmansarai
Life of this patent
Estimating the term…
Abstract
A system for determining congruence of a light field and a radiation field includes acquisition of first electronic image data representing a phantom as illuminated by light emitted by a light emitter, acquisition of second electronic image data representing the phantom as irradiated by treatment radiation emitted by the treatment radiation emitter, and determination of congruence of a light field produced by the light emitter and a treatment radiation field produced by the treatment radiation emitter based on the first electronic image data and the second electronic image data.
Claims25
A method for determining congruence of a light field and a radiation field, comprising:
- acquiring first electronic image data representing a light field produced by a light emitter;
- acquiring second electronic image data representing a radiation field produced by a treatment radiation emitter;
- and
- determining a congruence between the light field and the radiation field based on the first data and the second data.
1 more element
A computer-readable medium storing processor-executable process steps to determine congruence of a light field and a radiation field, the process steps comprising:
- a step to acquire first electronic image data representing a light field produced by a light emitter;
- a step to acquire second electronic image data representing a radiation field produced by a treatment radiation emitter;
- and
- a step to determine a congruence between the light field and the radiation field based on the first data and the second data.
1 more element
An apparatus to determine congruence of a light field and a radiation field, comprising:
- a memory storing processor-executable process steps;
- a processor in communication with the memory and operative in conjunction with the stored process steps to:
- acquire first electronic image data representing a light field produced by a light emitter;
- acquire second electronic image data representing a radiation field produced by a treatment radiation emitter;
- and
- determine a congruence between the light field and the radiation field based on the first data and the second data.
3 more elements
A method for determining congruence of a light field and a radiation field, comprising:
- acquiring first electronic image data representing a phantom located at a first position and illuminated by light emitted by a light emitter;
- acquiring second electronic image data representing the phantom located at the first position and irradiated by treatment radiation emitted by a treatment radiation emitter;
- normalizing the first electronic image data and the second electronic image data to account for differences in divergence properties of the emitted light and the emitted treatment radiation;
- generating superimposed electronic image data based on the first normalized electronic image data and the second normalized electronic image data;
- determining a distance between a location of a hole of the phantom as represented by the first normalized electronic image data and a location of the edge of the phantom as represented by the second normalized electronic image data based on the superimposed electronic image data;
- and
- determining a congruence of a light field produced by the light emitter and a treatment radiation field produced by the treatment radiation emitter based on a difference between the distance and an actual corresponding distance between the hole and the edge of the phantom.
4 more elements
A computer-readable medium storing processor-executable process steps to determine congruence of a light field and a radiation field, the process steps comprising:
- a step to acquire first electronic image data representing a phantom located at a first position and illuminated by light emitted by a light emitter;
- a step to acquire second electronic image data representing the phantom located at the first position and irradiated by treatment radiation emitted by a treatment radiation emitter;
- a step to normalize the first electronic image data and the second electronic image data to account for differences in divergence properties of the emitted light and the emitted treatment radiation;
- a step to generate superimposed electronic image data based on the first normalized electronic image data and the second normalized electronic image data;
- a step to determine a distance between a location of a hole of the phantom as represented by the first normalized electronic image data and a location of the edge of the phantom as represented by the second normalized electronic image data based on the superimposed electronic image data;
- and
- a step to determine a congruence of a light field produced by the light emitter and a treatment radiation field produced by the treatment radiation emitter based on a difference between the distance and an actual corresponding distance between the hole and the edge of the phantom.
4 more elements
A system for determining congruence of a light field and a radiation field, comprising:
- a light emitter for emitting light;
- a treatment radiation emitter for emitting treatment radiation;
- a data acquisition device for acquiring image data based on the emitted light and image data based on the emitted treatment radiation;
- a phantom disposed at a location between the light emitter and the data acquisition device and between the treatment radiation emitter and the data acquisition device;
- and
- an image processing device,
- wherein the data acquisition device acquires first electronic image data representing the phantom as illuminated by light emitted by the light emitter and acquires second electronic image data representing the phantom as irradiated by treatment radiation emitted by the treatment radiation emitter, and
- wherein the image processing device normalizes the first electronic image data and the second electronic image data to account for differences in divergence properties of the emitted light and the emitted treatment radiation, generates superimposed electronic image data based on the first normalized electronic image data and the second normalized electronic image data, determines a distance between a location of a hole of the phantom as represented by the first normalized electronic image data and a location of the edge of the phantom as represented by the second normalized electronic image data based on the superimposed electronic image data, and determines a congruence of a light field produced by the light emitter and a treatment radiation field produced by the treatment radiation emitter based on a difference between the distance and an actual corresponding distance between the hole and the edge of the phantom.
5 more elements
A method for determining congruence of a light field and a radiation field, comprising:
- acquiring first waveforms representing a phantom located at a first position as illuminated by light emitted by a light emitter;
- acquiring second waveforms representing the phantom located at the first position as irradiated by treatment radiation emitted by a treatment radiation emitter;
- normalizing the first waveforms and the second waveforms to account for differences in divergence properties of the emitted light and the emitted treatment radiation;
- determining a first location of a hole of the phantom based on the first normalized waveforms;
- determining a second location of the hole of the phantom based on the second normalized waveforms;
- and
- determining the congruence between the light field and the radiation field based on a difference, if any, between the first location and the second location.
4 more elements
A computer-readable medium storing processor-executable process steps to determine congruence of a light field and a radiation field, the process steps comprising:
- a step to acquire first waveforms representing a phantom located at a first position as illuminated by light emitted by a light emitter;
- a step to acquire second waveforms representing the phantom located at the first position as irradiated by treatment radiation emitted by a treatment radiation emitter;
- a step to normalize the first waveforms and the second waveforms to account for differences in divergence properties of the emitted light and the emitted treatment radiation;
- a step to determine a first location of a hole of the phantom based on the first normalized waveforms;
- a step to determine a second location of the hole of the phantom based on the second normalized waveforms;
- and
- a step to determine the congruence between the light field and the radiation field based on a difference, if any, between the first location and the second location.
4 more elements
A system for determining congruence of a light field and a radiation field, comprising:
- a light emitter for emitting light;
- a treatment radiation emitter for emitting treatment radiation;
- a data acquisition device for acquiring image data based on the emitted light and image data based on the emitted treatment radiation;
- a phantom disposed at a location between the light emitter and the data acquisition device and between the treatment radiation emitter and the data acquisition device;
- and
- an image processing device,
- wherein the data acquisition device acquires first waveforms representing the phantom as illuminated by light emitted by the light emitter and acquires second waveforms representing the phantom as irradiated by treatment radiation emitted by the treatment radiation emitter, and
- wherein the image processing device normalizes the first waveforms and the second waveforms to account for differences in divergence properties of the emitted light and the emitted treatment radiation, determines a first location of a hole of the phantom based on the first normalized waveforms, determines a second location of the hole of the phantom based on the second normalized waveforms, and determines the congruence between the light field and the radiation field based on a difference, if any, between the first location and the second location.
5 more elements
Dependencies are inferred from the claim text.