Abstract: A coil arrangement is for transmitting high frequency radiation. In an embodiment, the coil arrangement includes a transmission coil with a planar design and a passive, tubular part-body coil. The part-body coil is designed to radially enclose an examination volume relative to a direction. The examination volume includes a part of a patient's body. Furthermore, the part-body coil and the transmission coil are galvanically decoupled, and at the same time the part-body coil and the transmission coil are inductively coupled. The transmission coil is designed, by way of an emitted first high frequency radiation, to excite the part-body coil inductively, causing an enforced electromagnetic oscillation. The part-body coil emits second high frequency radiation in the event of an enforced electromagnetic oscillation. The coil arrangement of an embodiment can be used in a magnetic resonance unit without an integrated high frequency unit.

Abstract: The present invention relates to planar electrochemical sensors with membrane coatings used to perform chemical analyses. The object of this invention is to provide unit-use disposable sensors of very simple and inexpensive construction, preferably with only a single membrane coating on an electrode. The invented devices are potentiometric salt-bridge reference electrodes and dissolved gas sensors constructed with a heterogeneous membrane coating of a conductor. The heterogeneous membrane, which is an intimate admixture of a hydrophobic and a hydrophilic compartment, concurrently supports constrained transport of non-volatile species through its hydrophilic compartment and rapid gas and water vapor transport through its hydrophobic compartment.

Abstract: A method is for supporting medical personnel. The method includes taking account of patient data of the patient in an electronic health record stored in a first database; determining at least one prevalence value, each relating to a diagnosis to be made for a group of people including the patient, to which the patient has been classified as belonging in dependence on at least one part of the patient data; generating, from the at least one prevalence value, at least one item of evaluation information based on at least one future examination procedure performable with respect to the diagnosis to be made, taking into account prediction information present in a second database describing at least one of sensitivity and specificity for the at least one future examination procedure with respect to the diagnosis to be made; and outputting the at least one item of evaluation information to the medical personnel.

Abstract: A counting X-ray detector includes, in a stacked array, a converter material for converting X-ray radiation into electric charges and an electrode. In an embodiment, the electrode is electrically conductively connected to the converter material. The electrode is designed to be at least partly transparent. In an embodiment, the electrode includes: an electrically conductive contact layer, an electrically conductive first intermediate layer, an electrically conductive high voltage layer, a second intermediate layer and an electrically conductive heating layer.

Abstract: A method is for determining a transformation for image registration of a first image relative to a second image. The method includes ascertaining a test series of test elements including a test transformation and a test value, the ascertaining including ascertaining the test transformation based on a sequence of test transformations and/or based on previously ascertained test elements, transforming the first image via the ascertained test transformation, ascertaining a difference image, and ascertaining the test value of the test element based on the difference image such that the test value is a measure for an extension of a frequency distribution of values of pixels of the difference image in a direction of pixel value increase. It further includes determining a minimum test value based on test values encompassed by the test elements and determining the transformation which is the test transformation of a test element including the minimum test value.

Abstract: A counting X-ray detector for converting X-ray radiation into electrical signal pulses is disclosed. The counting X-ray detector includes, in a stacked arrangement, an illumination layer, a converter element and an evaluation unit. The illumination layer is designed to illuminate the converter element. The evaluation unit includes a measuring device for ascertaining an electrical direct current component in the converter element and a counting device for ascertaining from the signal pulses a number or an energy of events. A measuring electrode is formed on the converter element and an electrically conducting connection is formed between the measuring electrode and the measuring device.

Abstract: In a method to correct a signal phase in the acquisition of MR signals of an examination subject in a slice multiplexing method, in which MR signals from at least two different slices of the examination subject are detected simultaneously in the acquisition of the MR signals, a linear correction phase in the slice selection direction is determined for each of the at least two slices. An RF excitation pulse with a slice-specific frequency is radiated in each of the at least two different slices. A slice selection gradient is activated during a slice selection time period, during which the different RF excitation pulses are radiated in the at least two different slices, and the slice selection time period has a middle point in time in the middle of the slice selection time period, and the different RF excitation pulses temporally overlap for the at least two different slices.

Abstract: A method may include generating a device specific context vector for a device based on a data sheet associated with the device and agiles; generating a production based on the context vector; and automatically configuring data connections associated with the device based on the device specific context vector and the production, the data connections enabling the device to communicate in a network.

Abstract: In an RF spoiling method and apparatus for rapid spatial saturation in magnetic resonance imaging, a first RF pulse of a spatial saturation module is applied, and a first set of RF pulses of an imaging sequence is applied after the first RF pulse. A phase of an RF pulse, closest to the first RF pulse in the time dimension, in the first set of RF pulses is not coherent with a phase of the first RF pulse. This makes a phase cycle of the spatial saturation module and a phase cycle of the imaging sequence independent of each other, so the coherence of residual signals in the transverse plane can be destroyed more effectively, thereby reducing artefacts, and improving imaging quality.

Abstract: In a method and apparatus for parallel recording of a magnetic resonance dataset with a number of reception coils, wherein the measurement data acquired by each coil are a predetermined part of a complete set of k-space data, an excitation pulse applied, followed by a refocusing pulse. The resulting echo signal of an image dataset is acquired while a first read gradient activated. A gradient in the phase direction is designed to be activated in order to acquire additional echo signal while an additional readout gradient is activated. The gradient in the phase direction is designed so that the additional echo signal contains k-space data that supplements the predetermined part of the k-space data.

Abstract: A carrying device is disclosed for a retaining device for an X-ray tube assembly and an X-ray detector of an X-ray system. The carrying device includes a suspension device; a first carrier element arranged on the suspension device; a second carrier element; a first connecting element, the second carrier element being connected to the first carrier element via the first connecting element; a third carrier element connectable to the retaining device; and a second connecting element, the third carrier element being connected to the second carrier element via the second connecting element. In an embodiment, the first connecting element and/or the second connecting element include a revolute joint. Further, the distance between the suspension device and the first connecting element is variable via the first carrier element, and the distance between the first connecting element and the second connecting element is variable via the second carrier element.

Abstract: For breast cancer detection with an x-ray scanner, a cascade of multiple classifiers is trained or used. One or more of the classifiers uses a deep-learnt network trained on non-x-ray data, at least initially, to extract features. Alternatively or additionally, one or more of the classifiers is trained using classification of patches rather than pixels and/or classification with regression to create additional cancer-positive partial samples.

Abstract: A positioning device for a mobile x-ray detector, an x-ray device containing such a mobile positioning device, and a method mutually align a mobile x-ray detector and an x-ray emitter in relation to one another. In order to enable exact mutual alignment or positioning of the mobile x-ray detector in relation to the x-ray emitter, a positioning device is used for a mobile x-ray detector. The positioning device contains at least one marker and/or at least one sensor for determining the position and/or the orientation of the positioning device and contains a number of connection elements for establishing a mechanical connection between the positioning device and the mobile x-ray detector.

Abstract: A positioning cushion for patient undergoing an imaging procedure in a medical imaging apparatus, with a first positioning unit that has a foam material and a second positioning unit, wherein the second positioning unit has at least one fluid cushion able to be filled with a fluid.

Abstract: A method and apparatus for learning based classification of vascular branches to distinguish falsely detected branches from true branches is disclosed. A plurality of overlapping fixed size branch segments are sampled from branches of a detected centerline tree of a target vessel extracted from a medical image of a patient. A plurality of 1D profiles are extracted along each of the overlapping fixed size branch segments. A probability score for each of the overlapping fixed size branch segments is calculated based on the plurality of 1D profiles extracted for each branch segment using a trained deep neural network classifier. The trained deep neural network classifier may be a convolutional neural network (CNN) trained to predict a probability of a branch segment being fully part of a target vessel based on multi-channel 1D input.

Abstract: Provided in the present invention are a method and apparatus for processing a block to be processed of a urine sediment image. The method comprises: calculating a variable number of local feature vectors of a block to be processed, wherein the local feature vector is a vector representing a feature of a local location of the block to be processed; classifying the variable number of local feature vectors into a fixed number of clusters so as to obtain a statistical histogram vector of the fixed number of clusters of the block to be processed, wherein the statistical histogram vector reflects the statistical distribution of the variable number of local feature vectors in the fixed number of clusters; and taking the statistical histogram vector as a feature in a feature set of block processing and processing the block to be processed.

Abstract: An abstract for a quench valve of a cryostat, in particular for use in a magnetic resonance imaging system, is attachable to the quench valve so as to raise the cracking pressure of the quench valve without changing the operability of the quench valve. Such an accessory device is usable to enable the cryostat, containing a cryogen, to be safely transported by air transportation.

Abstract: In hemodynamic determination in medical imaging, the classifier is trained from synthetic data rather than relying on training data from other patients. A computer model (in silico) may be perturbed in many different ways to generate many different examples. The flow is calculated for each resulting example. A bench model (in vitro) may similarly be altered in many different ways. The flow is measured for each resulting example. The machine-learnt classifier uses features from medical scan data for a particular patient to estimate the blood flow based on mapping of features to flow learned from the synthetic data. Perturbations or alterations may account for therapy so that the machine-trained classifier may estimate the results of therapeutically altering a patient-specific input feature. Uncertainty may be handled by training the classifier to predict a distribution of possibilities given uncertain input distribution.

Abstract: A method for planning an examination of an examination object by a tomosynthesis machine includes: Raw data of the examination object are acquired from defined acquisition angles. An auxiliary data set is reconstructed from the raw data. Depth data are calculated based on the auxiliary data set calculating a number of projections from the perspective of a respectively defined projection center from the auxiliary data set or from the raw data. Each of the projections has a number of image points each linked with associated depth data. The projections are displayed and at least one projection is chosen. A position of an examination region of the examination object is marked therein. A real three-dimensional position of the examination region is calculated using the marked position and its depth data, and an examination path to the examination region is calculated.

Abstract: In a multi-slice data acquisition method and device and a magnetic resonance imaging method and apparatus, a number NC of fractional acquisitions and a number NS of slice individual, complete data acquisition of the multi-slice data acquisition are determined. Using an iterative odd/even arranging method, a slice data acquisition order of each of the fractional acquisitions is arranged according to an ideal number of iterations. The ideal number of iterations is obtained from multiple undetermined numbers j of iterations of the iterative odd/even arranging method according to the number NS of slice data and the number NC of fractional acquisitions. This multi-slice data acquisition method optimizes the slice data acquisition order so as to significantly reduce the effect of magnetization transfer and crosstalk.