Abstract: In order to ensure the preparation of an undistorted X-ray image of an examination image by an X-ray detector including an active pixel matrix with at least two detector plates, a method is provided. In at least one embodiment, a method for correcting a raw X-ray image includes changing, as a function of a deviation between correction values from pixel readout elements of a first detector plate and correction values from pixel readout elements of at least one further detector plate, the correction values of pixel readout elements of at least one detector plate, or preparing new correction values for the pixel readout elements of at least one detector plate. Further, the method in at least one embodiment includes carrying out a correction of the raw X-ray image with the changed correction values, or a carrying out a correction with the original correction values and the new correction values.

Abstract: During tomosynthesis a plurality of x-ray images is acquired. The angular position of the x-ray tube is changed from x-ray image to x-ray image. Absorption in the imaged object (patient) and also in the patient table changes as a function of the angle. To compensate for this, backlight is applied while the x-ray images are being acquired. The intensity of the back light is selected as a function of the angle of the x-ray tube to the normal of the flat x-ray detector. Backlight can also be directed during reading, with only the areas already read in each instance being irradiated.

Abstract: The invention relates to a diaphragm unit 4 or a diaphragm unit 4 and an associated x-ray emitter 1 with adjustment option for displaying an asymmetrical area under examination, with the diaphragm unit 4 being able to be tilted in accordance with the invention relative to the x-ray emitter 1, preferably by moving it on a rail system 12 attached isocentrically to the tube focus 9 on the tube housing 2 and/or the unit 1;4 made up of diaphragm unit 4 and x-ray emitter 1 being able to be tilted isocentrically to the tube focus 9 of the x-ray tube 2.

Abstract: In at least one embodiment, in order to provide a flat image detector with a very lightweight design in conjunction with as much mechanical protection as possible, a flat image detector is provided with a housing including a radiation entry window for the entry of an X-radiation. The radiation entry window is covered by a foil or a foil-like material that is substantially X-ray transparent.

Abstract: In order to increase the useful surface of an X-ray detector, in particular a flat image detector, a method is provided for gain calibration of an X-ray imaging system with a digital X-ray detector including an active matrix having pixel readout units. Pixels are read out from the pixel readout units, and a brightness drop below a defined threshold is determined for the read out pixels by an image processing unit. The pixel readout units having a brightness drop below the defined threshold are specified with regard to a cause of the brightness drop. Further, as a function of the specification, it is defined for which image raw values, subsequently read out from the affected pixel readout units, a gain correction is to be undertaken.

Abstract: X-ray device with a detector and an adjustable diaphragm for fading-in an examination area, whereby the detector (6) can be controlled and read-out asymmetrically and the diaphragm (8) can be moved asymmetrically.

Abstract: In order to determine the quality of a butting during the manufacture of a flat X-ray detector, it is sufficient for the mounting plate of the flat X-ray detector to be produced with detector plates which are connected by butting, and for a backlight board to be provided in order to illuminate the pleats through the mounting substrate (for example a glass plate). At least one backlight image is recorded with the aid of the backlight board and the detector plates. The backlight image is evaluated automatically in order to determine whether, in the zone of the image of the butting structure, it has areas which are illuminated more than averagely strongly or weakly, based on a predetermined assessment criterion. This may result in the determination of artifacts, which are characterized by the so-called light-and-shadow effect.

Abstract: An x-ray system HAS adjustable operating parameters with a dependency existing between different auxiliary types of equipment selectable for an examination and a suitable setting of the parameter. A control system of the x-ray system has a data input device to detect the used auxiliary equipment, a data storage device with data concerning the relation between each type of auxiliary equipment and an optimal setting of the parameters therefor, and an adjustment device for automatically adjusting the parameter dependent on the selection of the auxiliary equipment.

Abstract: For a uniform image quality of digital X-ray records, a solid-state detector is provided. The detector includes light-sensitive pixel elements arranged in an active matrix, and a reset light source arranged behind them in the radiation direction of X-ray radiation, with the reset light source being in the form of an arrangement with light-emitting diodes and with the light-emitting diodes being designed such that can be driven individually and their intensity can be controlled individually. At least one of a failed and malfunctioning light-emitting diode is detectable. The intensities of the serviceable light-emitting diodes are driven and controlled in the event of a failure or a malfunction of at least one light-emitting diode in such a manner that the intensity and/or the homogeneity of the reset light source remains the same.

Abstract: In order to create a stent, which despite being simple to guide in the relevant body conduit allows flexible adaptability to the body conduit in a simple manner while avoiding undesirably high expansion forces on the wall of the body conduit, in accordance with the invention a catheter is provided, with an essentially tubular filling area surrounding the part of the catheter which can be introduced into the body conduit, which can be filled with a plastic mass which forms the stent by a process of hardening; there is provision for positioning the filling area at the position intended for the stent in the body conduit, for hardening the plastic mass in the filling area, for creating the stent and for removing the catheter from the body conduit with the stent remaining in the body conduit.

Abstract: In an x-ray generator for an x-ray apparatus with an x-ray tube (10) from which x-rays exit at a beam exit window, an x-ray lens module is provided that is located in the immediate proximity of and in front of the beam exit window. The x-ray lens module allows the insertion (switching) of an x-ray lens into the beam path of the x-rays.

Abstract: The invention relates to a device for supporting a patient to be supported laterally on an x-ray table with a supporting element comprising a trough-like arched supporting surface and a fastening device for fastening the supporting element to the x-ray table such that the supporting surface continues a reclining surface of the x-ray table.

Abstract: To reduce the outlay on integrating flat detector additional units external to the detector in x-ray systems, an additional unit that can be assigned to at least one flat detector and can be arranged externally in relation to the latter is disclosed. The unit includes at least one first module having a data interface with the flat detector, at least one second module having a data interface with an imaging system, and at least one further module having a processing unit by which the data signals of the flat detector can be converted into data signals for the imaging system.

Abstract: The invention relates to a patient table (40) for an x-ray system with a table top, the length of which can be optionally varied. The table top can be of a modular design, or can comprise a plurality of table segments or slats (42) depending on the type of a shutter.

Abstract: A plurality of plates is bonded together by butting in order to manufacture a flat-plate x-ray detector. The butting determines artifacts in x-ray images taken with the flat-plate x-ray detector. According to the invention the butting structure is first measured in the flat-plate x-ray detector and a pixel quantity parameter is determined for an interpolation, whereby said parameter can be small for a narrow butting structure and large for a wide butting structure. Accordingly an interpolation of pixel data in x-ray images which have been taken is performed on the basis of the pixel quantity parameter, preferably by row or by column.

Abstract: To comply with radiation protection provisions that differ from one another for different operating functions without operational restrictions, a radiation protection system is provided in the case of a multifunctional x-ray system for a solid state detector assigned to the x-ray system. The radiation protection system includes a device for restricting the current outer contours of an x-radiation field to bounding outer contours dependent on the selected operating function of the x-ray system.

Abstract: By a contrast means contained in an inventive stent which has a greater permeability for x-radiation features than the body tissue surrounding the stent in a relevant body conduit, this stent can be clearly detected in its position on an x-ray image of the relevant body conduit while at the same time exhibiting good biological compatibility; a gas, especially one contained in cavities of the stent is provided as a contrast means. The inventive production method for this stent with the aid of a catheter embodied specially for the purpose enables the production of the stent from a malleable polymer mass in the relevant body conduit so that the stent is adapted especially precisely to the shape of the relevant body conduit.

Abstract: Depth diaphragm for an x-ray device, which diaphragm has a plurality of adjustable diaphragm blades (1) for displaying an area being examined, which blades (1) can be moved in such a way that said area being examined can be displayed asymmetrically.

Abstract: In a method to create a gain-corrected x-ray image with the aid of a flat-panel x-ray detector a number of gain images are determined on calibration and this is done for different measurement situations which correspond to different settings of specific x-ray imaging variables such as the angle of the flat-panel x-ray detector to an x-ray tube, the energy of the x-radiation used etc. Instead of the usual gain image for each element of the detector, a gain value is then used in the gain correction which is produced from an interpolation of the corresponding values from the number of gain images.

Abstract: Reliable and at the same time simple operation of a plurality of system components using only a single control element is guaranteed by means of the combination of a control lever (10) which can be swiveled manually and a rotational control unit (11) which can be rotated manually. Translatory control motions can be executed intuitively by means of swivel movements (16) of the control lever (10) and rotatory control motions can be executed intuitively by means of rotary movements (14) of the rotational control unit (11). The embodiment of the rotational control unit (11) in the form of a ring element surrounding the control lever (10), which can be can be adjusted by raising or lowering into different operating positions, associated in each case with a specific operating function, is particularly advantageous.