Intensity modulated arc therapy with continuous couch rotation/shift and simultaneous cone beam imaging
a technology of intensity modulation and arc therapy, which is applied in the field of system and method of treatment and delivery of therapeutic radiation, can solve the problems of increasing treatment time, inability to integrate simultaneous kv imaging, and limited current vmat technology for certain treatment sites, so as to reduce the risk of toxicity and secondary malignancy
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[0032]As shown in FIG. 1, there is shown a radiation therapy system 100 that can include an imaging system, such as a cone beam computed tomography system 102, and a therapeutic radiation source, such as medical linear source or accelerator 104. The computed tomography system 102 includes an x-ray source 106 and a flat panel imager 108 mounted on gantry 110. The details of the computed tomography system 102 is described in U.S. Pat. Nos. 6,842,502 and 7,471,765, the entire disclosures of each of which are incorporated herein by reference. Of course, other types of imaging systems, such as C-arm support cone beam systems and proton imaging systems, can be used without departing from the spirit of the present invention.
[0033]The system 102 is retrofitted onto an existing or new radiation therapy system 112 that includes a separate radiation therapy source, such as the medical linear source 104, which operates at a power level to allow for treatment of a target volume in an object, suc...
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