Radiotherapy device control apparatus and radiation irradiation method
First Claim
Patent Images
1. A radiotherapy device control apparatus for controlling a radiotherapy device,wherein the radiotherapy device includes:
- a therapeutic radiation irradiation device which radiates therapeutic radiation, an imager which generates an imager image of a subject by using radiation transmitted through the subject,a table on which the subject is arranged, anda drive device which moves a relative position of the table with respect to the therapeutic radiation irradiation device, said radiotherapy device control apparatus comprising;
a reference image creation section;
a transmitted image creation section;
an affected area position control section;
a three-dimensional data obtaining section which obtains three-dimensional data of the subject; and
a two-dimensional image creation section which creates a two-dimensional image based on the three-dimensional data,wherein said reference image creation section collects a reference imager image taken by the imager,wherein said transmitted image creation section takes a transmitted imager image of the subject by the imager,wherein said affected area position control section, in a first treatment operation, judges whether or not the relative position of the table with respect to the therapeutic radiation irradiation device is appropriate based on a third position at which a characteristic point of the subject is displayed in the transmitted imager image and a fourth position at which the characteristic point is displayed in the two-dimensional image, and changes the relative position of the table by using the drive device based on the third position and the fourth position, andwherein said affected area position control section, in a second treatment operation and thereafter, judges whether or not the relative position of the table with respect to the therapeutic radiation irradiation device is appropriate based on a first position at which the characteristic point of the subject is displayed in the transmitted imager image and a second position at which the characteristic point is displayed in the reference imager image, which includes the transmitted imager image taken at a previous treatment operation, andchanges the relative position of the table by using the drive device based on the first position and the second position.
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Abstract
A radiotherapy device control apparatus controls a radiotherapy device. The control apparatus includes a reference image creation section, a transmitted image creation section and an affected area position control section. The radiotherapy device includes a therapeutic radiation irradiation device that radiates therapeutic radiation, an imager that generates an image of a subject by using radiation transmitted through the subject, and a drive device that moves a couch, where the subject is arranged, with respect to the therapeutic radiation irradiation device. The affected area position control section judges whether a relative position of the couch with respect to the therapeutic radiation irradiation device is appropriate and changes the relative position of the couch by using the drive device based on a first position and a second position.
124 Citations
52 Claims
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1. A radiotherapy device control apparatus for controlling a radiotherapy device,
wherein the radiotherapy device includes: -
a therapeutic radiation irradiation device which radiates therapeutic radiation, an imager which generates an imager image of a subject by using radiation transmitted through the subject, a table on which the subject is arranged, and a drive device which moves a relative position of the table with respect to the therapeutic radiation irradiation device, said radiotherapy device control apparatus comprising; a reference image creation section; a transmitted image creation section; an affected area position control section; a three-dimensional data obtaining section which obtains three-dimensional data of the subject; and a two-dimensional image creation section which creates a two-dimensional image based on the three-dimensional data, wherein said reference image creation section collects a reference imager image taken by the imager, wherein said transmitted image creation section takes a transmitted imager image of the subject by the imager, wherein said affected area position control section, in a first treatment operation, judges whether or not the relative position of the table with respect to the therapeutic radiation irradiation device is appropriate based on a third position at which a characteristic point of the subject is displayed in the transmitted imager image and a fourth position at which the characteristic point is displayed in the two-dimensional image, and changes the relative position of the table by using the drive device based on the third position and the fourth position, and wherein said affected area position control section, in a second treatment operation and thereafter, judges whether or not the relative position of the table with respect to the therapeutic radiation irradiation device is appropriate based on a first position at which the characteristic point of the subject is displayed in the transmitted imager image and a second position at which the characteristic point is displayed in the reference imager image, which includes the transmitted imager image taken at a previous treatment operation, and changes the relative position of the table by using the drive device based on the first position and the second position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A radiotherapy system comprising:
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a radiotherapy device control apparatus; and a radiotherapy device, wherein said radiotherapy device control apparatus includes; a reference image creation section; a transmitted image creation section; an affected area position section; a three-dimensional data obtaining section which obtains three-dimensional data of the subject; and a two-dimensional image creation section which creates a two-dimensional image based on the three-dimensional data, wherein said radiotherapy device control apparatus controls said radiotherapy device, wherein said radiotherapy device includes; a therapeutic radiation irradiation device which radiates therapeutic radiation, an imager which generates an imager image of a subject by using radiation transmitted through the subject, a table on which the subject is arranged, and a drive device which moves a relative position of said table, with respect to said therapeutic radiation irradiation device, wherein said reference image creation section collects a reference imager image taken by said imager, wherein said transmitted image creation section takes a transmitted imager image of the subject by said imager, wherein said affected area position control section, in a first treatment operation, judges whether or not the relative position of said table with respect to said therapeutic radiation irradiation device is appropriate based on a third position at which a characteristic point of the subject is displayed in the transmitted imager image and a fourth position at which the characteristic point is displays in the two-dimensional image, and changes the relative position of said table by using said drive device based on the third position and the fourth position, and wherein said affected area position control section, in a second treatment operation and thereafter, judges whether or not the relative position of said table with respect to said therapeutic radiation irradiation device is appropriate based on a first position at which a characteristic point of the subject is displayed in the transmitted imager image and a second position at which the characteristic point is displayed in the reference imager image, which includes the transmitted imager image taken at a previous treatment operation, and changes the relative position of said table by using said drive device based on the first position and the second position. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A radiation irradiation method using a radiotherapy device, wherein the radiotherapy device includes:
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a therapeutic radiation irradiation device which radiates therapeutic radiation, an imager which generates an imager image of a subject by using radiation transmitted through the subject, a table on which the subject is arranged, and a drive device which moves a relative position of the table, with respect to the therapeutic radiation irradiation device, said radiation irradiation method comprising; obtaining three-dimensional data of the subject; creating a two-dimensional image based on the three-dimensional data; taking a transmitted imager image of the subject by the imager in a first treatment operation; judging whether or not the relative position of the table with respect to the therapeutic radiation irradiation device is appropriate based on a third position at which a characteristic point of the subject is displayed in the transmitted imager image and a fourth position at which the characteristic point is displayed in the two-dimensional image, in the first treatment operation; changing the relative position of the table by using the drive device based on the third position and the fourth position, in the first treatment operation; collecting a reference imager image, which includes the transmitted imager image taken by the imager at a previous treatment operation; imaging a transmitted imager image of the subject by the imager, in a second treatment operation and thereafter; judging whether or not the relative position of the table with respect to the therapeutic radiation irradiation device is appropriate based on a first position at which the characteristic point of the subject is displayed in the transmitted imager image and a second position at which the characteristic point is displayed in the reference imager image, in the second treatment operation and thereafter; and changing the relative position of the table by using the drive device based on the first position and the second position, in the second treatment operation and thereafter. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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40. A computer-readable storage medium having embodied thereon computer program product for implementing a radiation irradiation method using a radiotherapy device, wherein the radiotherapy device includes:
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a therapeutic radiation irradiation device which radiates therapeutic radiation, an imager which generates an imager image of a subject by using radiation transmitted through the subject, a table on which the subject is arranged, and a drive device which moves a relative position of the table, with respect to the therapeutic radiation irradiation device, the computer program product comprising code that, when executed, causes a computer to perform; obtaining three-dimensional data of the subject; creating a two-dimensional image based on the three-dimensional data; taking a transmitted imager image of the subject by the imager in a first treatment operation; judging whether or not the relative position of the table with respect to the therapeutic radiation irradiation device is appropriate based on a third position at which a characteristic point of the subject is displayed in the transmitted imager image and a fourth position at which the characteristic point is displayed in the two-dimensional image, in the first treatment operation; changing the relative position of the table by using the drive device based on the third position and the fourth position, in the first treatment operation; collecting a reference imager image, which includes the transmitted imager image taken by the imager at a previous treatment operation; imaging a transmitted imager image of the subject by the imager, in a second treatment operation and thereafter; judging whether or not the relative position of the table with respect to the therapeutic radiation irradiation device is appropriate based on a first position at which the characteristic point of the subject is displayed in the transmitted imager image and a second position at which the characteristic point is displayed in the reference imager image, in the second treatment operation and thereafter; and changing the relative position of the table by using the drive device based on the first position and the second position, in the second treatment operation and thereafter. - View Dependent Claims (41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52)
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Specification
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Current AssigneeHitachi, Ltd.
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Original AssigneeMitsubishi Heavy Industries, Ltd.
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InventorsUrano, Susumu, Kawada, Noriyuki, Kaneko, Shuji
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Primary Examiner(s)Ho; Allen C.
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Application NumberUS11/705,494Publication NumberTime in Patent Office1,113 DaysField of Search378/65US Class Current378/65CPC Class CodesA61N 2005/1059 using cameras imaging the p...A61N 2005/1062 using virtual X-ray images,...A61N 5/1049 for verifying the position ...A61N 5/1069 Target adjustment, e.g. mov...
