Abstract: A medical data processing method for determining a target set comprising at least one irradiation target in a patient's body for radiation therapy treatment by means of a treatment device constituted to treat the at least one target by means of one or more sub-beams during a treatment time, the one or more sub-beams constituting at least one treatment beam which is to pass through the at least one target in accordance with a treatment plan during the treatment time, the method comprising the following steps and being constituted to be executed by a computer: a) acquiring (S 1.1) critical area; b) acquiring (S 1.2) target data; c) acquiring (S 1.3) treatment beam constraint data; d) acquiring treatment beam criteria data (S 1.4); and e) determining (S4), based on the critical area data, the target data, the treatment beam constraint data and the treatment beam criteria data, target set data describing spatial information on at least one irradiation region.

Abstract: An X-ray diagnostic apparatus according to an embodiment includes an X-ray generator, processing circuitry, and a display unit. The X-ray generator radiates an X-ray. The processing circuitry obtains an exposure dose of a subject due to the X-ray radiated from the X-ray generator and generates an image in which a dose distribution based on the exposure dose is superimposed on a three-dimensional model representing the subject. The display unit displays the image. The processing circuitry generates an image in which the dose distribution on a body surface on a rear side when observed in a first view direction, serving as a direction in which the three-dimensional model is displayed, is visible.

Abstract: According to one embodiment, a medical image diagnostic apparatus includes an X-ray tube, an X-ray detector, storage circuitry, slice image generation circuitry, a display. The X-ray tube generates X-rays from a predetermined focus. The X-ray detector detects X-rays which have been generated by the X-ray tube and passed through an object placed on a top plate. The storage circuitry stores volume data about the object. The slice image generation circuitry generates slice images corresponding to planes each including the focus based on the volume data and a relative position of the focus with respect to the top plate. The display displays the slice images.

Abstract: An X-ray analysis device includes an electron gun, an X-ray optical member, a first detection unit and a second detection unit, and a distance changing mechanism. The X-ray optical member guides characteristic X-rays emitted from a sample to at least any one of the first detection unit or the second detection unit. The first detection unit is formed such that energy resolution is given relative priority over counting efficiency in contrast to the second detection unit. The second detection unit is formed such that counting efficiency is given relative priority over energy resolution in contrast to the first detection unit. The distance changing mechanism changes the distance between each of the first detection unit and the second detection unit and the X-ray optical member in an axial direction of an optical axis of the X-ray optical member.

Abstract: A measurement line evaluation unit (23): calculates, for all of specified measurement lines, estimated measured intensities by theoretical calculation on the basis of a composition and/or a thickness specified for a thin film; changes, by a predetermined amount, only an estimated measured intensity of one measurement line, and obtains quantitative values of the composition and/or the thickness of the thin film after change of the estimated measured intensity, for each changed measurement line, by a fundamental parameter method; and estimates a quantitative error and/or determines possibility of analysis, on the basis of the obtained quantitative values and the specified composition and/or the specified thickness.

Abstract: An apparatus for cone beam computed tomography of an extremity has a digital radiation detector and a first device to move the detector along a circular detector path extending so that the detector moves both at least partially around a first extremity of the patient and between the first extremity and a second, adjacent extremity. The detector path has radius R1 sufficient to position the extremity approximately centered in the detector path. There is a radiation source with a second device to move the source along a concentric circular source path having a radius R2 greater than radius R1, radius R2 sufficiently long to allow adequate radiation exposure of the first extremity for an image capture by the detector. A first circumferential gap in the source path allows the second extremity to be positioned in the first circumferential gap during image capture.

Abstract: A bite-block and film-holding device is used with an x-ray film or a digital image sensor and held by a patient between teeth to align with an external camera device for dental radiographic imaging of the patient's teeth. The bite-block and film-holding device includes a disposable film holder having a bite block portion, a film-holding portion made of a plastic material, and a bonding member having a release layer attached thereto; and an aiming assembly having a coupling arm coupled to the disposable film-holder and an aiming ring assembly installed on the camera device and connected to the coupling arm. The aiming ring assembly is adjustable in position for the camera device to face at a right angle to the film-holding portion. After the dental radiographic imaging, the disposable film holder is separated from the aiming assembly and discarded to ensure the patient's oral cavity hygiene and health.

Abstract: Disclosed are a radiographic imaging device and a radiographic imaging method which appropriately set an irradiation condition of radiation according to the presence or absence of an implant in a breast. An implant information acquisition unit 80 acquires implant information representing whether or not an implant is included in a breast M as a subject. An irradiation condition setting unit 82 sets, based on the implant information, a first irradiation condition C1 for irradiating the breast M with radiation when an implant is present and a second irradiation condition C2 for irradiating the breast M with radiation when an implant is absent. A radiation source drive control unit 70 drives an X-ray source 50 under the irradiation condition set by the irradiation condition setting unit 82 to irradiate the breast M with radiation.

Abstract: A method and system for forming tomographic images of an object using discrete, non-continuous illumination rays is disclosed. In some embodiments, coded apertures, collimation filters, or reference structures are used to filter the set of illumination rays from a two- or three-dimensional radiation signal, wherein the set of illumination rays are then used to interrogate the object. In some embodiments, the object is interrogated with a set of illumination rays that is continuous and a sparse array of detectors is used to sub-sample the illumination rays after they have passed through the object.

Abstract: A mobile digital fluoroscopy system comprising a mobile X-ray system carrier unit (1) comprising a first and a second X-ray device (19, 20) each having a transmitter (21, 23) and a receiver (22, 24), wherein said respective first and second X-ray devices (19, 20) are configured to enable X-ray imaging in mutually intersecting planes, a kV unit 1012; and; wherein said a mobile control unit (2a) is communicatively coupled to the mobile X-ray system carrier (1) via a cable (150), wherein said mobile control unit (2a) is configured to receive a first set of image data 810 from said kV unit (1012) and sending a control signal to said kV unit (1012) upon completion of receiving of said image data 810, wherein kV unit 1012 is configured to generate a synchronization signal 820 to said transmitters (21, 23) and receivers (22,24) and to send a second set of image data 810 received from receivers (22,24) to the mobile control unit 2a.

Abstract: The present invention relates to mammography. In particular, the present invention relates to a method and a corresponding system for individually monitoring a compression force in an apparatus for mammographic examination for personalized compression guidance. In order to provide a personalized guidance for the compression of the breast in a first step (S1a, S1b, S1c) a breast contact area (A) between a breast under examination and a compression plate (3) or a support plate (15) is determined. In a next step (S5) a compression force limit is determined based on the breast contact area (A). Then, in a further step (S9a, S9b, S9c) an output signal (5) representative of the relation between the breast contact area (A) and the compression force limit is provided to a user such that the user may decide whether to complete or to continue the application of compression force.

Abstract: A cross section obtained by cutting an X-ray beam at a time of taking projection data from the X-ray beam detected by an X-ray sensor, with a plane, which is perpendicular to the central axis of the X-ray beam and runs through the central axis of a photographic region, is defined as a photography specification surface. The number of the photography specification surface per unit area in a plane, as the photographic region is viewed from a point in the direction along the central axis of the photographic region, is defined as overlap density of the projection data. A controller of an X-ray photography device executes a leveling control which levels the overlap density of the projection data between at an outer portion and inner portion of the photographic region. Thus, an X-ray photographic device is provided that is capable of improving the image quality in the entire photographic region.

Abstract: An X-ray apparatus includes an X-ray radiator configured to radiate an X-ray, and a controller acquiring orientation information of the X-ray radiator and orientation information of at least one X-ray detector, selecting the at least one X-ray detector based on the orientation information of the X-ray radiator and the orientation information of the at least one X-ray detector, and determining a power mode of the selected X-ray detector to be a power consumption mode and a power mode of an X-ray detector that is not selected, to be a power save mode.

Abstract: Disclosed are methods and devices for estimating object scatter and/or internal scatter in a multi-level photon-counting x-ray detector, as well as x-ray tomographic imaging while correcting for object and internal scatter. The x-ray detector has at least two layers of detector diodes mounted in an edge-on geometry, e.g. designed for 1) estimating the object scatter contribution to the counts in a top layer of the at least two layers based on difference(s) in counts between the top layer and lower layer(s) under the assumption the object scatter has a slowly varying spatial distribution, and/or 2) estimating counts from reabsorption of photons that have Compton scattered inside the detector based on selectively blinding some detector elements from primary radiation by placing a highly attenuating beam stop on top of the detector elements, in lower layer(s) or in both top layer and lower layer(s), and measuring the counts in those detector elements.

Abstract: The present invention provides an X-ray image sensor comprising: a sensor panel which is bendable, generates an electrical signal by detecting an X-ray, and has a first elasticity; a printed circuit board which transmits the electrical signal to the outside, has a second elasticity that is smaller than the first elasticity, and has a flexible property; and an elastic adjustment member which is made of an elastic material having a third elasticity that is larger than the first elasticity, and which adjusts the elasticity of the sensor panel and the printed circuit board so as to be greater than or equal to the third elasticity.

Abstract: The present invention provides an oral sensor device comprising: a sensor assembly which is bendable and generates an electrical signal by detecting an X-ray; and a window cover comprising a base portion and a side wall, the base portion being positioned on the front of a sensor panel with respect to the traveling direction of the X-ray, and covering the sensor panel, and the side wall protruding toward the rear from the lateral side of the edge of the base portion so as to cover the lateral surface of the sensor panel, and having a plurality of grooves formed on at least a part thereof.

Abstract: In order to provide a technique capable of restoring measured data from projection data with high accuracy and removing system noise included in the measured data, a signal processing device obtains measured data x including signal values of 0 or less by processing an output signal from a data acquisition system, and performs a conversion process on the measured data x by using a predefined function including a logarithmic function so as to generate projection data (logarithmically converted data z), in which the predefined function is a function of which an inverse function is present for values of a predetermined negative number s or more, and the measured data x including signal values of 0 or less within a predetermined range is restored from the projection data by applying the inverse function to the projection data.

Abstract: An imaging condition setting unit sets imaging conditions for a pre-contrast enhancement scan, a monitoring scan, and a post-contrast enhancement scan. A ROI setting unit sets a region of interest for the monitoring scan in a reference image generated by a reference image scan executed before the pre-contrast enhancement scan, the monitoring scan, and the post-contrast enhancement scan. The scan control unit controls an X-ray generation unit and an X-ray detection unit to sequentially execute, based on the imaging conditions, the pre-contrast enhancement scan, the monitoring scan, and the post-contrast enhancement scan.

Abstract: An X-ray CT apparatus 1 stores an image quality improvement table 3 indicating levels of image quality improvement effects for a plurality of image quality improvement processes in a storage device 123. In a case where imaging is performed while modulating an X-ray irradiation amount on the basis of predetermined dose modulation data, an image processing device 122 acquires a reference dose used as a reference of image quality, and acquires an irradiation X-ray dose during imaging for image reconstruction target projection data from the dose modulation data. The image processing device 122 determines an image quality improvement process for obtaining image quality used as a reference by referring to the image quality improvement table 3 on the basis of a ratio between the dose values, and performs the determined image quality improvement process on the reconstruction target projection data.

Abstract: A control circuit identifies (prior to optimizing a radiation-treatment plan) at least one angle (such as one or more gantry angles as correspond to an arc-therapy treatment platform) to provide one or more identified angles. The control circuit then optimizes a radiation-treatment plan with respect to a particular patient target volume by using the identified angle(s) as preferred angles as regards irradiating the patient target volume. Being “preferred,” the radiation-treatment plan is thereby influenced (without being required) towards changing a rate of moving the gantry when traversing the preferred angle(s). For example, the plan can be biased towards slowing down movement of the gantry at such angles to thereby deliver a relatively greater amount of radiation to the patient target volume at the preferred angle.