Abstract: An x-ray apparatus has a flat panel x-ray detector, the operation of which is susceptible to interference by strong magnetic fields. In order to allow the x-ray system to be operated concurrently with a magnetic system, such as a magnetic tracking system or a magnetic localization system, that emits a magnetic field of sufficient field strength to interfere with the operation of the flat panel x-ray detector, a control unit is provided that operates both the flat panel x-ray detector and the magnetic system. The control unit synchronizes operation of the magnetic system with the operation of the flat panel x-ray detector so that the magnetic system emits the magnetic field only at times that do not interfere with the operation of the flat panel x-ray detector.

Abstract: The invention relates to a diagnostics device and to a method for the operation thereof comprising an X-ray system for producing X-ray images, the system comprising an X-ray device and an image system for the X-ray device, and a system for locating objects, wherein adjusting means for changing the frequency of at least one of the two systems are provided, by way of which the two systems can be coordinated with one another such that interference within successive X-ray images is virtually static, and the image system comprises a correcting device which is constructed such that the static interference is eliminated. Diagnostics devices of this type are used in various medical procedures, for example in PCI (Percutaneous Coronary Intervention) and Cardiac EP (electrophysiology) interventions.

Abstract: An x-ray apparatus has a flat panel x-ray detector, the operation of which is susceptible to interference by strong magnetic fields. In order to allow the x-ray system to be operated concurrently with a magnetic system, such as a magnetic tracking system or a magnetic localization system, that emits a magnetic field of sufficient field strength to interfere with the operation of the flat panel x-ray detector, a control unit is provided that operates both the flat panel x-ray detector and the magnetic system. The control unit synchronizes operation of the magnetic system with the operation of the flat panel x-ray detector so that the magnetic system emits the magnetic field only at times that do not interfere with the operation of the flat panel x-ray detector.

Abstract: A device for guiding a magnetic element has magnet holders that can be pivoted about vertical axes from an operating position to a rest position, such that a patient to be examined can be examined using imaging devices, having X-ray radiation sources and X-ray detectors respectively attached to C-arms.

Abstract: An Apparatus for directing a magnetic element in a body (17) of a patient comprises a pair of directing magnet pods (11, 12) movable in relation to each other and attached to opposite ends (10) of an arm (2, 20) which extends in a circumferential direction (4, 22) around a support (5) of the patient and which is movable in a circumferential direction (4, 22) and pivotable around a radial axis (8, 24) with respect to the support of the patient.

Abstract: An X-ray diagnostic system includes a CCD camera, a device for generating external trigger pulses and a system control. The system control is formed in such a way that, in the absence of X-radiation, a readout of the CCD camera without a useful signal takes place at regular time intervals. To reduce the dark signal component in the useful signal of the CCD camera, the system control is formed in such a way that, when an external trigger pulse occurs at a point in time at which no readout of the CCD camera is taking place, firstly a readout without a useful signal is triggered and then an exposure of the CCD camera takes place. Further, when an external trigger pulse occurs at a point in time at which a readout of the CCD camera is taking place, a readout without a useful signal is suppressed before an exposure of the CCD camera.

Abstract: An x-ray diagnostics installation has an x-ray generator, an x-ray tube and an x-ray image intensifier to which a video camera with a CCD image sensor is coupled. The video camera includes a control generator that is connected to a control output of the x-ray generator and to the CCD image sensor, and controls the latter such that the read-out clock is interrupted synchronously with the video clock on the basis of a signal supplied by the x-ray generator.

Abstract: An x-ray diagnostics installation has an operating voltage generator, an x-ray tube, an x-ray image intensifier, a video camera, a video amplifier having controllable gain, an integration circuit and a control circuit that acts on the operating voltage for dose rate control. The x-ray diagnostics installation is fashioned such that the control circuit is connected to the video amplifier and to the integration circuit and controls these components such that the gain of the video amplifier is raised when a limit value of the dose rate control is reached, with parameters of the integration circuit being simultaneously modified.

Abstract: An x-ray diagnostics installation has an x-ray source, an x-ray image intensifier connected to a video chain and a processing circuit which controls various components of the installation. The processing circuit includes a weighting circuit which allocates an individual weighting factor to different regions of the x-ray image. The processing circuit also includes an evaluation circuit, connected to the weighting circuit, which combines the signals from the weighted image regions to form an actual value signal, which is used to control certain of the components of the installation.