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 system and a method are respectively for positioning an examination object and evaluation of an image with respect to a positioning of a breast of an examination object in relation to an x-ray device. In an embodiment, the system includes an x-ray device including at least one compression device to fix a breast of the examination object; at least one camera, arranged in relation to the x-ray device such that images are acquirable via the at least one camera, the images showing a current positioning of the breast of the examination object in relation to the x-ray device; and at least one display device, embodied to display the images.

Abstract: A mammography installation includes a first compression device; a second compression device including an integrated X-ray detector; an X-ray emitter; a support device, arranged at the first compression device or at the second compression device, and including an integrated ultrasound transducer, the support device and the integrated ultrasound transducer being designed to be deformable so as to be adaptable to the breast of a patient, the integrated ultrasound transducer being arranged on an elastic substrate; and a breast locating region, provided between the support device and the first compression device or the second compression device that is situated opposite the first compression device or the second compression device at which the support device is arranged. The breast of the patient is positionable in the breast locating region. Further, the integrated ultrasound transducer is oriented in a direction of the breast locating region.

Abstract: A relationship is established between points or regions in images of objects deformed in different ways, for example images of the human chest in a mammography and 3D ultrasound process. While a plurality of recording parameters which can be used for such an automatic image registration are often known in X-ray and other imaging methods, precise recording parameters, in particular for the position of the chest, are usually not available in ultrasound processes. The object is to additionally detect the position, in particular the tilt, of the chest and the ultrasound transducer in a chest ultrasound. A linking of multiple ultrasound recordings to one another or a comparably more precise automatic image registration using other modalities can then be carried out using the position of the ultrasound transducer relative to the chest. The position is detected in a manner that is specific to the case.

Abstract: An X-ray device and a supplementary system are provided for interferometric X-ray imaging of a patient on the X-ray device in order to generate projective absorption recordings. An emitter-detector system includes a focus-forming X-ray tube and a digital flat-panel detector having a multiplicity of pixel-generating detector elements. A computer system has a program memory. A mobile grating attachment includes a first interferometric X-ray grating, a second interferometric X-ray grating disposed at a distance from the first X-ray grating in the radiation direction, and a displacement device for displacing the second X-ray grating in the plane of the second X-ray grating in steps over at least one detector element.

Abstract: An X-ray examination device has an X-ray tube and an X-ray detector for recording at least one X-ray image of a breast and also an ultrasound system for recording an ultrasound image of the breast. A compression unit is used for compression and fixation of the breast. A volume-variable and/or shape-variable positioning element is disposed to act on the breast. The positioning element has at least one chamber and the volume-variability and/or shape-variability of the positioning element can be effected by filling at least one chamber of the positioning element with a filling medium and/or by emptying at least one chamber of the positioning element.

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 medical instrument is provided for use with a phase contrast imaging. The medical instrument includes at least one component, which has a strong small angle scattering of x-rays. Furthermore, a corresponding x-ray recording system with phase contrast imaging for recording an examination object may include such a medical instrument.

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: In a compression unit of a mammography apparatus, a breast is compressed between a first compression plane and a second compression plane. At least one of the first and second compression planes is formed by a fabric. The compression unit allows a breast to be maintained in a fixed, compressed state while acquiring an x-ray image of the compressed breast and the compressed state is maintained for subsequently acquiring an ultrasound image of the compressed breast.

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: An X-ray device and a supplementary system are provided for interferometric X-ray imaging of a patient on the X-ray device in order to generate projective absorption recordings. An emitter-detector system includes a focus-forming X-ray tube and a digital flat-panel detector having a multiplicity of pixel-generating detector elements. A computer system has a program memory. A mobile grating attachment includes a first interferometric X-ray grating, a second interferometric X-ray grating disposed at a distance from the first X-ray grating in the radiation direction, and a displacement device for displacing the second X-ray grating in the plane of the second X-ray grating in steps over at least one detector element.

Abstract: An X-ray radiography system for differential phase contrast imaging of an object under investigation by phase-stepping is provided. The X-ray radiography has an X-ray emitter for generating a beam path of quasi-coherent X-ray radiation, an X-ray image detector with pixels arranged in a matrix, and a diffraction or phase grating, in which the X-ray emitter has an X-ray tube with a cathode and an anode. The X-ray tube is constructed in such a way that an electron ray beam originating from the cathode is associated with focusing electronics which produce, from electrons which are incident on an anode, at least one linear-shaped electron fan beam.

Abstract: An imaging breast examination apparatus for medical examination of a breast includes an insertable compression plate for compressing the breast. An electric motor which is disposed outside the compression plate in the breast examination apparatus serves to generate a rotation movement. A mechanical interface transmits the rotation movement of the electric motor to the compression plate.

Abstract: An x-ray detector of a grid-based phase-contrast x-ray device and a method for operating a grid-based phase-contrast x-ray device. Signal values of detector elements are combined to form group signal values. An image computing unit calculates an x-ray beam phase value from the group signal values.

Abstract: A relationship is established between points or regions in images of objects deformed in different ways, for example images of the human chest in a mammography and 3D ultrasound process. While a plurality of recording parameters which can be used for such an automatic image registration are often known in X-ray and other imaging methods, precise recording parameters, in particular for the position of the chest, are usually not available in ultrasound processes. The object is to additionally detect the position, in particular the tilt, of the chest and the ultrasound transducer in a chest ultrasound. A linking of multiple ultrasound recordings to one another or a comparably more precise automatic image registration using other modalities can then be carried out using the position of the ultrasound transducer relative to the chest. The position is detected in a manner that is specific to the case.

Abstract: In a compression unit of a mammography apparatus, a breast is compressed between a first compression plane and a second compression plane. At least one of the first and second compression planes is formed by a fabric. The compression unit allows a breast to be maintained in a fixed, compressed state while acquiring an x-ray image of the compressed breast and the compressed state is maintained for subsequently acquiring an ultrasound image of the compressed breast.

Abstract: An X-ray radiography system for differential phase contrast imaging of an object under investigation by phase-stepping is provided. The X-ray radiography has an X-ray emitter for generating a beam path of quasi-coherent X-ray radiation, an X-ray image detector with pixels arranged in a matrix, and a diffraction or phase grating, in which the X-ray emitter has an X-ray tube with a cathode and an anode. The X-ray tube is constructed in such a way that an electron ray beam originating from the cathode is associated with focusing electronics which produce, from electrons which are incident on an anode, at least one linear-shaped electron fan beam.

Abstract: A medical instrument is provided for use with a phase contrast imaging. The medical instrument includes at least one component, which has a strong small angle scattering of x-rays. Furthermore, a corresponding x-ray recording system with phase contrast imaging for recording an examination object may include such a medical instrument.