Abstract: A computer-implemented method is for determining at least one main acquisition parameter determining a dose of x-rays to be emitted from an x-ray emitter during image acquisition using an x-ray emitter and an x-ray detector. A first image data of a first preparatory image is evaluated to determine if a repeat condition is fulfilled and/or to determine the main acquisition parameter and/or at least one second preparatory acquisition parameter. The first preparatory image is acquired by the x-ray detector using at least one first preparatory acquisition parameter to control the x-ray emitter. In all cases or when the repeat condition is fulfilled, the main acquisition parameter is determined depending on second image data of a second preparatory image, acquired by the x-ray detector after the first preparatory image while at least one second preparatory acquisition parameter is used to control the x-ray emitter.

Abstract: A method for automatically analysing 2D medical image data, including an additional object comprises acquiring the 2D medical image data from an examination portion of a patient using a first modality; acquiring additional image data from the examination portion using a different modality; and performing an automatic image analysis based on the acquired 2D medical image data and the acquired additional image data, the image analysis being adapted to the additional object.

Abstract: One or more example embodiments relates to a computer-implemented a method for providing a label of a body part on an X-ray image, comprising receiving input data, wherein the input data is based on a red, green and blue (RGB) image of the body part, a depth image of the body part and an X-ray image of the body part; applying at least one trained function to the input data to generate output data, wherein the output data is the label of the body part, the label indicating a right body part or a left body part; and providing the output data.

Abstract: At least one example embodiment provides a method for automatic positioning of an X-ray source of a medical X-ray system with a mobile X-ray detector. The method includes determining an examination region of the examination object, acquiring a position and a location of the examination object and the examination region by way of an optical position determining system, localizing the examination region, ascertaining a field point of the central ray of the X-ray source and a collimator size of the X-ray source based on the localized examination region, and automatic positioning of the X-ray source based on the field point and the collimator size.

Abstract: A method is for collimator element adjustment of an x-ray system with a central x-ray axis and an optical axis of an optical imaging device differing therefrom. In an embodiment, the method includes displaying a first recorded optical image of the examination object; marking a target region as a region to be shown in the displayed first recorded optical image; determination of at least one first collimator element position value based on the marked target region in the first recorded optical image; and adjustment of the collimator element position with the at least one first collimator element position value determined.

Abstract: A computer-implemented method is for determining at least one main acquisition parameter determining a dose of x-rays to be emitted from an x-ray emitter during image acquisition using an x-ray emitter and an x-ray detector. A first image data of a first preparatory image is evaluated to determine if a repeat condition is fulfilled and/or to determine the main acquisition parameter and/or at least one second preparatory acquisition parameter. The first preparatory image is acquired by the x-ray detector using at least one first preparatory acquisition parameter to control the x-ray emitter. In all cases or when the repeat condition is fulfilled, the main acquisition parameter is determined depending on second image data of a second preparatory image, acquired by the x-ray detector after the first preparatory image while at least one second preparatory acquisition parameter is used to control the x-ray emitter.

Abstract: A method is for operating an x-ray device for recording a series of images, in particular for fluoroscopic monitoring of a recording region of a patient. The method includes acquiring fluoroscopy images of a patient with a recording rate and a recording dose; and displaying the fluoroscopy images acquired to a user on a display device at a frame rate. The recording dose is selected automatically as a function of a change in image contents between consecutive fluoroscopy images acquired.

Abstract: At least one example embodiment provides a method for automatic positioning of an X-ray source of a medical X-ray system with a mobile X-ray detector. The method includes determining an examination region of the examination object, acquiring a position and a location of the examination object and the examination region by way of an optical position determining system, localizing the examination region, ascertaining a field point of the central ray of the X-ray source and a collimator size of the X-ray source based on the localized examination region, and automatic positioning of the X-ray source based on the field point and the collimator size.

Abstract: A method is for collimator element adjustment of an x-ray system with a central x-ray axis and an optical axis of an optical imaging device differing therefrom. In an embodiment, the method includes displaying a first recorded optical image of the examination object; marking a target region as a region to be shown in the displayed first recorded optical image; determination of at least one first collimator element position value based on the marked target region in the first recorded optical image; and adjustment of the collimator element position with the at least one first collimator element position value determined.

Abstract: A method is for operating an x-ray device for recording a series of images, in particular for fluoroscopic monitoring of a recording region of a patient. The method includes acquiring fluoroscopy images of a patient with a recording rate and a recording dose; and displaying the fluoroscopy images acquired to a user on a display device at a frame rate. The recording dose is selected automatically as a function of a change in image contents between consecutive fluoroscopy images acquired.

Abstract: A method and an X-ray apparatus generate a projective X-ray representation of an examination object. Two projective images obtained from a phase contrast measurement are adapted to each other in respect of their representation format and a result image is generated by combining the adapted images. The result image allows extensive separation of different structures in the examination object that is used.

Abstract: A method and an x-ray apparatus for interferometric 2D x-ray imaging, use a Talbot-Lau interferometer having at least one phase grating and an analysis grating for producing 2D images of an object to be examined using a phase stepping method. A stepwise readout of a detector is carried out continuously at a multiplicity of the phase positions of an interference pattern. Time sequences of readout interval data records which overlap in time are extracted from the readout data records, and at least one result image data record is calculated from an absorption image and/or a phase-contrast image and/or a dark-field image from each readout interval data record.

Abstract: A method and an X-ray apparatus generate a projective X-ray representation of an examination object. Two projective images obtained from a phase contrast measurement are adapted to each other in respect of their representation format and a result image is generated by combining the adapted images. The result image allows extensive separation of different structures in the examination object that is used.

Abstract: A mobile grating-detector arrangement has an X-ray detector and at least one grating. The grating-detector arrangement is configured to record an interferometric X-ray image of at least one body part of a patient in a patient bed in operation. In addition, an X-ray system with such a grating-detector arrangement and its use for X-ray interferometric imaging is described.

Abstract: A method and an x-ray apparatus for interferometric 2D x-ray imaging, use a Talbot-Lau interferometer having at least one phase grating and an analysis grating for producing 2D images of an object to be examined using a phase stepping method. A stepwise readout of a detector is carried out continuously at a multiplicity of the phase positions of an interference pattern. Time sequences of readout interval data records which overlap in time are extracted from the readout data records, and at least one result image data record is calculated from an absorption image and/or a phase-contrast image and/or a dark-field image from each readout interval data record.

Abstract: In an imaging acquisition system and method, successive x-ray images and successive optical images are respectively acquired from an examination subject. Positional identifiers associated with the examination subject are detected in the optical images, and acquisition of respective x-ray images is triggered only when the identifiers are detected in the optical images. The number of acquired x-ray images is therefore substantially fewer than the number of acquired optical images, and the x-ray images can be acquired with substantially no overlap, thereby avoiding exposing the examination subject to unnecessary radiation.

Abstract: In a device for capturing high energy radiation emitted from a radiation source within an examination object with a detector, the detector is arranged on a carriage mechanism that is mounted in a rotatable fashion around the examination object. The carriage mechanism is supported on a stand unit via a retaining mechanism, with an amplifier device being provided that amplifies the signals coming from the detector that are fed to the amplifier device via a signal guidance device. A data processing device is provided to process the amplified signals. By arranging the amplifier device and/or the data processing device essentially within the stand unit, a device is provided which can be flexibly utilized and which increases the patient's comfort during an examination.

Abstract: In an imaging acquisition system and method, successive x-ray images and successive optical images are respectively acquired from an examination subject. Positional identifiers associated with the examination subject are detected in the optical images, and acquisition of respective x-ray images is triggered only when the identifiers are detected in the optical images. The number of acquired x-ray images is therefore substantially fewer than the number of acquired optical images, and the x-ray images can be acquired with substantially no overlap, thereby avoiding exposing the examination subject to unnecessary radiation.

Abstract: In a device for capturing high energy radiation emitted from a radiation source within an examination object with a detector, the detector is arranged on a carriage mechanism that is mounted in a rotatable fashion around the examination object. The carriage mechanism is supported on a stand unit via a retaining mechanism, with an amplifier device being provided that amplifies the signals coming from the detector that are fed to the amplifier device via a signal guidance device. A data processing device is provided to process the amplified signals. By arranging the amplifier device and/or the data processing device essentially within the stand unit, a device is provided which can be flexibly utilized and which increases the patient's comfort during an examination.