摘要:
A radiotherapy device control apparatus includes: a template matching section; an affected area position calculating section; and an irradiation position control section. The radiotherapy device control apparatus controls a radiotherapy device. The radiotherapy device includes: a therapeutic radiation irradiation device radiating therapeutic radiation, and an imager generating an imager image of a subject by using radiation transmitted through the subject. The template matching section calculates degree of coincidence when a pattern matching is executed on the imager image with a plurality of image templates in which positional relations between an object area and a non-object area of the subject are different, and selects a specified image template having the degree of coincidence within a predetermined range from the plurality of image templates. The affected area position calculating section calculates a position of the object area by using the specified image template. The irradiation position control section judges whether a relative position of the object area with respect to the therapeutic radiation irradiation device. The irradiation position control section moves one of the therapeutic radiation irradiation device and a couch with the subject by using a drive device provided with the radiotherapy device such that the object area is irradiated with the therapeutic radiation.
摘要:
A radiotherapy device control apparatus includes: a template matching section; an affected area position calculating section; and an irradiation position control section. The radiotherapy device control apparatus controls a radiotherapy device. The radiotherapy device includes: a therapeutic radiation irradiation device radiating therapeutic radiation, and an imager generating an imager image of a subject by using radiation transmitted through the subject. The template matching section calculates degree of coincidence when a pattern matching is executed on the imager image with a plurality of image templates in which positional relations between an object area and a non-object area of the subject are different, and selects a specified image template having the degree of coincidence within a predetermined range from the plurality of image templates. The affected area position calculating section calculates a position of the object area by using the specified image template. The irradiation position control section judges whether a relative position of the object area with respect to the therapeutic radiation irradiation device. The irradiation position control section moves one of the therapeutic radiation irradiation device and a couch with the subject by using a drive device provided with the radiotherapy device such that the object area is irradiated with the therapeutic radiation.
摘要:
A radiotherapy device control apparatus controlling a radiotherapy device, includes an affected area position database, a motion collection section, and an irradiation position control section. The radiotherapy device includes a therapeutic radiation irradiation device radiating therapeutic radiation, a motion detector detecting motion of the subject, and a drive device moving the therapeutic radiation irradiation device with respect to the subject. The affected area position database associates a position set with a motion related information set related to the motion. The motion collection section collects the motion from the motion detector. The irradiation position control section moves the therapeutic radiation irradiation device by the drive device such that the therapeutic radiation is radiated to a position in the position set corresponding to motion related information of the motion.
摘要:
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.
摘要:
A radiotherapy device control apparatus controlling a radiotherapy device, 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 radiating therapeutic radiation, an imager generating an image of a subject by using radiation transmitted through the subject, and a drive device moving a couch, where the subject is arranged, with respect to the therapeutic radiation irradiation device. The reference image creation section collects a reference image taken by the imager. The transmitted image creation section takes a transmitted image of the subject by the imager. The affected area position control section judge whether a relative position of the couch with respect to the therapeutic radiation irradiation device is appropriate based on a position where a characteristic point of the subject is displayed in the transmitted image and a position where the characteristic point is displayed in the reference image. The affected area position control section changes the relative position of the couch by using the drive device based on the first position and the second position.
摘要:
An object is to provide a medical device which can rotate a radiation emitter or the like with high positional precision over an extended period of time. Provided are a support frame installed such that a central axis thereof is positioned substantially horizontally; circular tracks respectively disposed on both side faces of the support frame; a moving gantry configured to revolve relative to the support frame via sliding portions configured to slide on the circular tracks; and revolving driving means for revolving the moving gantry, wherein the moving gantry is constructed of a rigid-framed structure formed of a first side portion and a second side portion disposed so as to flank the support frame from both side faces thereof, and coupling portions for coupling the first side portion and the second side portion.
摘要:
A medical device which can rotate a radiation emitter or the like with high positional precision over an extended period of time is provided. Provided are a support frame installed such that a central axis thereof is positioned substantially horizontally; circular tracks respectively disposed on both side faces of the support frame; a moving gantry configured to revolve relative to the support frame via sliding portions configured to slide on the circular tracks; and revolving driving means for revolving the moving gantry, wherein the moving gantry is constructed of a rigid-framed structure formed of a first side portion and a second side portion disposed so as to flank the support frame from both side faces thereof, and coupling portions for coupling the first side portion and the second side portion.
摘要:
A medical device can perform treatment and diagnosis without causing a sense of unease to the patient. The medical device includes a substantially ring-shaped support frame provided in such a manner that a central axis through which an isocenter passes is disposed substantially horizontally; a substantially ring-shaped moving gantry which slides relative to the support frame and which has an opening at the isocenter side thereof a radiation emitter configured to emit a beam towards the isocenter; and a protective cover which covers the radiation emitter and an inner circumferential side of the moving gantry and which moves together with the moving gantry.
摘要:
An object of the invention is to provide a medical device which can perform treatment and diagnosis without causing a sense of unease to the patient. The invention includes a substantially ring-shaped support frame provided in such a manner that a central axis through which an isocenter passes is disposed substantially horizontally; a substantially ring-shaped moving gantry which slides relative to the support frame and which has an opening at the isocenter side thereof; a radiation emitter configured to emit a beam towards the isocenter; and a protective cover which covers the radiation emitter and an inner circumferential side of the moving gantry and which moves together with the moving gantry.
摘要:
In a control apparatus for a radiotherapy apparatus, each of a plurality of separation results indicates an objective portion template and a non-objective portion template. The separation result is calculated such that a difference between a first template production image and an image produced by superimposing an objective portion template in a position of a designated region on the non-objective portion template is small and a difference between the second template production image and an image produced by superimposing the objective portion template in a position of an assumption region, which is different from the designated region, on the non-objective portion template.