Abstract: A mammography apparatus includes: a moving unit that moves a compression plate in a compression direction in which the breast is compressed and a decompression direction in which the breast is decompressed; a radiation source; a pressure sensor that is used to measure a compression pressure which is a compression force of the compression plate per unit area; and a control unit that controls the moving unit such that the compression plate is moved to a first position where the compression pressure measured by the pressure sensor is a first compression pressure in the compression direction and is moved to a second position where the compression pressure measured by the pressure sensor is a second compression pressure in the decompression direction and performs control such that radiation is emitted from the radiation source in a state in which the compression plate is located at the second position.

Abstract: A medical imaging device that includes: a press plate that presses a breast; an emitter that radiates radiation onto the breast; an acquisition section that acquires various information indicating a type of an acoustic matching member inserted between the press plate and the breast in cases in which ultrasound imaging of the breast is performed; and a setting section that sets a tube voltage of the emitter to a first tube voltage, in cases in which radiographic imaging of the breast is performed alone, and that sets the tube voltage of the emitter to a second tube voltage that is different from the first tube voltage, by employing the various information acquired by the acquisition section, in cases in which radiographic imaging and ultrasound imaging of the breast are performed consecutively with the acoustic matching member still inserted.

Abstract: The radiation-irradiation device includes: a radiation generating unit that generates radiation; a collimator unit that controls an irradiation range to be irradiated with the radiation generated by the radiation generating unit; and an interval ensuring unit that includes a contact member being in contact with a subject to be irradiated with the radiation in a case in which a distance between the radiation generating unit and the subject is shorter than a preset distance, and ensures an interval between the radiation generating unit and the subject. The interval ensuring unit is detachably mounted on the collimator unit and is capable of being mounted at different rotational positions about an axis, which passes through a center of a diaphragm of the collimator unit and extends in the direction of an optical axis of the radiation, as a central axis.

Abstract: A tomographic image generation device includes a projection image acquisition section configured to acquire plural projection images obtained by radiating radiation onto a breast in sequence from plural radiation angles and by performing imaging at each of the plural radiation angles; a mammary gland density acquisition section configured to acquire a mammary gland density of the breast; a derivation section configured to derive a slice thickness that decreases as the mammary gland density acquired by the mammary gland density acquisition section increases; and a generation section configured to generate a tomographic image at the slice thickness derived by the derivation section based on the plural projection images acquired by the projection image acquisition section.

Abstract: Provided is a radiation irradiation device enabling a user to change the position of a monitor to a desired position as needed and smoothly perform imaging of a radiographic image. The radiation irradiation device includes a radiation generation unit that generates radiation; a second support part having one end to which the radiation generation unit is attached; a first support part having one end to which the second support part is connected and the other end connected to a body part; the body part; a leg part that is provided on a bottom surface of the body part and is capable of traveling on a device placement surface; and a monitor provided on a surface that faces the bottom surface of the body part, via a connecting member. The monitor is detachably installed at a plurality of positions on the surface that faces the bottom surface of the body part.

Abstract: A medical imaging device that includes: a press plate that presses a breast; an emitter that radiates radiation onto the breast; an acquisition section that acquires various information indicating a type of an acoustic matching member inserted between the press plate and the breast in cases in which ultrasound imaging of the breast is performed; and a setting section that sets a tube voltage of the emitter to a first tube voltage, in cases in which radiographic imaging of the breast is performed alone, and that sets the tube voltage of the emitter to a second tube voltage that is different from the first tube voltage, by employing the various information acquired by the acquisition section, in cases in which radiographic imaging and ultrasound imaging of the breast are performed consecutively with the acoustic matching member still inserted.

Abstract: A medical imaging device that includes: a press plate that presses a breast; an emitter that radiates radiation onto the breast; an acquisition section that acquires various information indicating a type of an acoustic matching member inserted between the press plate and the breast in cases in which ultrasound imaging of the breast is performed; and a setting section that sets a tube voltage of the emitter to a first tube voltage, in cases in which radiographic imaging of the breast is performed alone, and that sets the tube voltage of the emitter to a second tube voltage that is different from the first tube voltage, by employing the various information acquired by the acquisition section, in cases in which radiographic imaging and ultrasound imaging of the breast are performed consecutively with the acoustic matching member still inserted.

Abstract: Provided are a radiography device, a radiography method, and a radiography program which can obtain an accurate radiographic image while reducing a burden on a subject. A radiography device control unit determines imaging conditions including at least one of resolution or an incident angle range, on the basis of a radiographic image captured before tomosynthesis imaging, and performs tomosynthesis imaging. Specifically, the radiography device control unit controls tomosynthesis imaging (120) such that tomosynthesis imaging is performed under first conditions (108) of low resolution and a narrow incident angle range in a case in which a mutation site suspected as a lesion is not detected and tomosynthesis imaging is performed under second conditions (112, 116, and 118) which are different from the first conditions in at least one of the resolution or the incident angle range in a case in which the mutation site suspected as a lesion is detected.

Abstract: A radiography device includes: a radiation emitting unit that irradiates a subject with radiation at a plurality of different incident angles; a radiographic image generation unit that receives the radiation passed through the subject and generates a radiographic image; a part-of-interest detection unit that detects a mutation site suspected as a lesion from the radiographic image obtained by irradiating the subject with the radiation at a predetermined incident angle; and a radiography device control unit that controls whether to perform each of the tomosynthesis imaging in which the radiographic image generation unit generates the radiographic image while the radiation emitting unit changes the incident angle of the radiation and two-dimensional radiography in which the radiation emitting unit is fixed to a predetermined incident angle and the radiographic image generation unit generates the radiographic image, on the basis of a detection result of the part-of-interest detection unit.

Abstract: A medical imaging device that includes: a press plate that presses a breast; an emitter that radiates radiation onto the breast; an acquisition section that acquires various information indicating a type of an acoustic matching member inserted between the press plate and the breast in cases in which ultrasound imaging of the breast is performed; and a setting section that sets a tube voltage of the emitter to a first tube voltage, in cases in which radiographic imaging of the breast is performed alone, and that sets the tube voltage of the emitter to a second tube voltage that is different from the first tube voltage, by employing the various information acquired by the acquisition section, in cases in which radiographic imaging and ultrasound imaging of the breast are performed consecutively with the acoustic matching member still inserted.

Abstract: A radiation irradiation device includes a radiation generation unit; an arm part; a support member having one end to which the arm part is connected; a body part to which the support member is connected; and a leg part on which the body part is placed. The leg part includes first casters that are provided on a front side of the leg part and second casters that are provided on a rear side of the leg part. The diameter of wheels of the second casters and is greater than the diameter of wheels of the first casters, and the gravity center position of the entire device is closer to the second casters side than a center between the first casters and the second casters in a state where the arm part is rotationally moved until the radiation generation unit is located at a vertically lowermost position.

Abstract: The radiation-irradiation device includes: a radiation generating unit that generates radiation; a collimator unit that controls an irradiation range to be irradiated with the radiation generated by the radiation generating unit; and an interval ensuring unit that includes a contact member being in contact with a subject to be irradiated with the radiation in a case in which a distance between the radiation generating unit and the subject is shorter than a preset distance, and ensures an interval between the radiation generating unit and the subject. The interval ensuring unit is detachably mounted on the collimator unit and is capable of being mounted at different rotational positions about an axis, which passes through a center of a diaphragm of the collimator unit and extends in the direction of an optical axis of the radiation, as a central axis.

Abstract: Provided is a radiation irradiation device enabling a user to change the position of a monitor to a desired position as needed and smoothly perform imaging of a radiographic image. The radiation irradiation device includes a radiation generation unit that generates radiation; a second support part having one end to which the radiation generation unit is attached; a first support part having one end to which the second support part is connected and the other end connected to a body part; the body part; a leg part that is provided on a bottom surface of the body part and is capable of traveling on a device placement surface; and a monitor provided on a surface that faces the bottom surface of the body part, via a connecting member. The monitor is detachably installed at a plurality of positions on the surface that faces the bottom surface of the body part.

Abstract: Provided is a radiation irradiation device that can restrict movement of an arm part during device movement without providing a mechanism that becomes a user's obstacle. The radiation irradiation device includes a radiation generation unit that generates radiation; an arm part having one end to which the radiation generation unit is attached; a support member having one end to which the other end of the arm part is connected so as to be rotationally movable; a body part to which the other end of the support member is connected; a leg part that is provided on a bottom surface of the body part and is capable of traveling on a device placement surface; and an arm locking part that restricts the rotational movement of the arm part. The arm locking part is provided inside the arm part.

Abstract: A radiation irradiation device includes a radiation generation unit; an arm part; a support member having one end to which the arm part is connected; a body part to which the support member is connected; and a leg part on which the body part is placed. The leg part includes first casters that are provided on a front side of the leg part and second casters that are provided on a rear side of the leg part. The diameter of wheels of the second casters and is greater than the diameter of wheels of the first casters, and the gravity center position of the entire device is closer to the second casters side than a center between the first casters and the second casters in a state where the arm part is rotationally moved until the radiation generation unit is located at a vertically lowermost position.

Abstract: There is provided a radiographic imaging device including: a radiographic imaging device main body; and a protective cover that is removably applied to a surface of the radiographic imaging device main body, wherein a thickness of the radiographic imaging device main body, with the protective cover applied, is less than or equal to 16 mm.

Abstract: A control unit of a radiation imaging apparatus performs control of moving a radiation source, and emitting radiation from the radiation source at a plurality of positions at which incidence angles of the radiation to a breast of a subject are different from each other. The control unit performs control of causing a radiation detector to detect the radiation emitted from the radiation source at the plurality of positions. The control unit performs control of moving the radiation source at a movement speed corresponding to a position of the radiation source for a subject face proximate position.

Abstract: A radiation irradiation device includes a radiation generating part that generates radiation; an arm part having the radiation generating part attached to one end thereof; a main body part having the other end of the arm part connected thereto; an electric power supply part provided at the main body part; and a cable part for electrically connecting the power supply part and the radiation part. The electric power supply part has a battery part having lithium ion batteries connected in parallel, and a first booster circuit part that boosts a voltage output from the battery part. The radiation generating part has a second booster circuit part that further boosts a voltage that is boosted by the first booster circuit part and is input to the radiation generating part via the cable part which is extended along the arm part.

Abstract: A mammography apparatus includes: a compression plate that compresses a breast; a moving unit that moves the compression plate in a compression direction in which the breast is compressed and a decompression direction in which the breast is decompressed; a radiation source that emits radiation; and a control unit that controls the moving unit such that the compression plate is moved to a first position in the compression direction, is moved to a second position where the position of the compression plate is changed from the first position by a predetermined variation or more in the decompression direction, and is stopped and performs control such that the radiation is emitted from the radiation source to the breast.

Abstract: Provided are a mammography apparatus, a control device, a mammography apparatus control method, and a mammography apparatus control program that can effectively reduce the subject's pain caused by the compression of the breast by a compression plate. A mammography apparatus includes a compression plate that compresses a breast, a moving unit that moves the compression plate in a compression direction in which the breast is compressed and a decompression direction in which the breast is decompressed, a radiation source that emits radiation, and a control unit that controls the moving unit such that the compression plate is moved to a first position in the compression direction and is moved to a second position in the decompression direction and performs control such that the radiation is emitted from the radiation source to the breast in a state in which the compression plate is located at the second position.