Intensity modulated arc therapy with continuous couch rotation/shift and simultaneous cone beam imaging

A system for radiotherapy comprising:na couch having a top lateral surface upon which a patient being treated by the system is positioned, the couch having continuous arc rotation for delivery of accelerated irradiation to the patient;wherein the couch is rotatable at least about a z-axis orthogonally extending through a substantially central portion of the lateral surface; andwherein delivery of the accelerated irradiation is performed during at least a portion of the movement.

A radiation therapy system comprising:na radiation source that moves about an object and directs a beam of radiation towards said object;a multi-leaf collimator comprising a plurality of movable leafs that define an aperture through which said beam is directed from said radiation source to said object;a table upon which said object is positioned, said table being translationally and rotationally movable, wherein the table is rotatable at least about a z-axis orthogonally extending through a substantially central portion of the lateral surface; anda computer in communication with said radiation source, said multi-leaf collimator and said table, wherein said computer simultaneously controls one or more of the following parameters of said radiation source, said multi-leaf collimator and said table: table motion, radiation source motion, fluence output rate, multi-leaf collimator orientation and shape of said aperture;wherein the computer is configured to cause delivery of the radiation during at least a portion of the movement of the table.

A method of providing radiation comprising:ndirecting a beam of radiation towards an object;defining an aperture through which said beam is directed to said object;positioning a table having a top lateral surface upon which said object lies;rotating said table at least about a z-axis orthogonally extending through a substantially central portion of said lateral surface, wherein the beam of radiation is delivered to the object at least during a portion of the rotating; andsimultaneously controlling one or more of the following parameters: table motion, beam motion, fluence output rate, aperture orientation and shape of said aperture.

A radiation therapy system comprising:na radiation source that moves about an object and directs a beam of therapeutic radiation towards said object;an imaging source that moves about said object and directs a beam of imaging radiation towards said object;a table having a top lateral surface upon which said object is positioned, said table being translationally and rotationally movable, the table being rotatable at least about a z-axis orthogonally extending through a substantially central portion of the lateral surface;a first imager for receiving radiation passing through said object that was generated by said therapeutic radiation source and for forming first image information therefrom;a second imager for receiving radiation passing through said object that was generated by said imaging source and for forming second image information therefrom, wherein said first image information and said second image information are formed simultaneously; anda computer in communication with said radiation source, said table, said first imager and said second imager, wherein said computer simultaneously controls motion of said table and one or more of the following parameters of said radiation source in a real-time manner based on said first image information and said second image information: radiation source motion and fluence output rate, such that delivery of radiation to said object is performed during movement of the table.

A method of providing radiation comprising:ndirecting a beam of therapeutic radiation towards an object;directing a beam of imaging radiation towards said object;positioning an object upon a top lateral surface of a table, the table being translationally movable and rotatable at least about a z-axis orthogonally extending through a substantially central portion of the lateral surface;forming first image information of said object based on said beam of therapeutic radiation passing through said object;forming second image information of said object based on said beam of imaging radiation passing through said object, wherein said first image information and said second image information are formed simultaneously; andsimultaneously controlling movement of said table and one or more of the following parameters of said beam of therapeutic radiation in a real-time manner based on said first image information and said second image information: beam of therapeutic radiation motion and fluence output rate.