Abstract: A radiotherapy apparatus controller includes: a movement collection section; a sensor control section configured to change a first time interval in which a second sensor measures a position of an irradiation area in the subject, based on the movement information; and an irradiation control section. The movement collection section collects movement information indicating a movement of a subject from a first sensor. The sensor control section changes a first time interval in which a second sensor measures a position of an irradiation area in the subject, based on the movement information. The irradiation control section controls a radiotherapy apparatus such that therapeutic radiation irradiated to the irradiation area is changed based on the position.

Abstract: A specific site location measuring method according to the present invention, includes: calculating matching degrees based on a plurality of transmission images imaged by use of radiation transmitting through a specimen and a template set; selecting a template transmission image from the plurality of transmission images based on the matching degrees; adding a new template generated based on the template transmission image, to the template set; imaging a location measurement transmission image by use of radiation transmitting through the specimen; selecting an optimal template that is the most similar to a portion of the location measurement transmission image, from the template set by performing pattern matching of each of templates of the template set with the location measurement transmission image; and calculating a specific site location based on the location measurement transmission image and the optimal template.

Abstract: 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.

Abstract: A radiotherapy apparatus controller includes: a portal image taking unit; a gantry position collector; a marker position calculator; and a marker position table generator. The portal image taking unit takes a first transmission image, in which a marker member positioned at a predetermined position is shown, by using therapeutic radiation and an imager. The gantry position collector collects a first gantry position at which a gantry is positioned when the first transmission image is taken from a sensor measuring a position at which the gantry is positioned, the gantry supporting the imager and a therapeutic radiation radiating device which radiates the therapeutic radiation. The marker position calculator calculates a first marker position at which the marker member is shown in the first transmission image.

Abstract: 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.

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.

Abstract: A signal processing apparatus includes: a connecting means for use in connecting to a different device; a signal control means for changing a control signal to be outputted to the different device through the connecting means for a predetermined period; a changing means for changing the predetermined period; a determining means for determining for each of the predetermined periods changed by the changing means whether the different device stably makes a response to a change in the control signal caused by the signal control means; and a deciding means for deciding a shortest predetermined period from the predetermined periods determined by the determining means that the different device stably makes a response, as a standby time for the different device connected through the connecting means.

Abstract: A radiotherapy apparatus controller includes: a movement collection section; a sensor control section configured to change a first time interval in which a second sensor measures a position of an irradiation area in the subject, based on the movement information; and an irradiation control section. The movement collection section collects movement information indicating a movement of a subject from a first sensor. The sensor control section changes a first time interval in which a second sensor measures a position of an irradiation area in the subject, based on the movement information. The irradiation control section controls a radiotherapy apparatus such that therapeutic radiation irradiated to the irradiation area is changed based on the position.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A radiation irradiation method includes the steps (a) and (b). The step (a) is the step of irradiating a first part of a subject with first radiation radiated in a radial pattern from a first point. The step (b) is the step of irradiating a second part different from said first part of said subject with second radiation radiated in a radial pattern from a second point. A first position of said first point relative to said subject correspond to a second position of said second point relative to said subject.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: The present invention provides a method of specifically potentiating an N-type Ca2+ channel activity, which includes administering, to a subject, a compound of the following formula (I): wherein R1 is lower alkyl, aryl, ar(lower)alkoxy or a heterocyclic group, the above groups being optionally substituted by halogen, R2 is hydrogen atom or lower alkyl, R3 is cyclo(lower)alkyl, aryl or ar(lower)alkyl, the above groups being optionally substituted by halogen, A is —CO—, —SO2— or lower alkylene, and Y shows —CO—, —SO2— or —CONH— (compound (I)), a salt thereof, a prodrug thereof or a solvate thereof; a method for the prophylaxis or treatment of brain disorders such as dementia and amnesia, which includes such administration; and a screening method particularly useful for screening a compound having a similar effect as compound (I).

Abstract: The present invention provides a method of specifically potentiating an N-type Ca2+ channel activity, which includes administering, to a subject, a compound of the following formula (I): 1