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US 8,867,703 B2Granted
Multi-mode cone beam CT radiotherapy simulator and treatment machine with a flat panel imager
AssigneeVarian Medical Systems, Inc.
InventorsEdward G. Shapiro, Edward J. Seppi, John M. Pavkovich, Peter Munro, Stanley W. Johnsen, Richard E. Colbeth
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Abstract
A multi-mode cone beam computed tomography radiotherapy simulator and treatment machine is disclosed. The radiotherapy simulator and treatment machine both include a rotatable gantry on which is positioned a cone-beam radiation source and a flat panel imager. The flat panel imager captures x-ray image data to generate cone-beam CT volumetric images used to generate a therapy patient position setup and a treatment plan.
Claims21
A radiation treatment system, comprising:
- a rotatable gantry;
- a treatment source;
- a cone-beam radiation source coupled to the rotatable gantry;
- a flat-panel imager coupled to the rotatable gantry, wherein the flat-panel imager is operable to capture image projection data of a patient;
- a first logic that reconstructs a cone-beam computer tomography (CT) volumetric image data based on the image projection data;
- a patient support to support the patient;
- and
- a second logic configured to control the patient support and place the patient in an operative position to begin a treatment based on the cone-beam CT volumetric image data or the image projection data.
5 more elements
A method to prepare for a clinical treatment, comprising:
- obtaining image projection data from transmitting at least a portion of a cone-beam from a radiation source through a target volume onto a flat panel imager;
- generating cone-beam computer tomography (CT) volumetric image data based on the obtained image projection data;
- and
- placing a patient in an operative position to begin the clinical treatment based on the cone-beam CT volumetric image data or the image projection data.
1 more element
Dependencies are inferred from the claim text.