Abstract: A method for providing a procedural signal includes receiving an item of procedural information including an item of information about at least one procedural step that has been carried out on an object under examination before the beginning of the method, and an item of information about at least one planned procedural step. A physiological patient parameter is received from the object, which has been acquired via a sensor unit during and/or subsequent to the procedural step that has been carried out. The method includes identifying, based on the patient parameter and/or a change in the patient parameter whether the at least one procedural step has been tolerated by the object under examination. A procedural signal is provided that, in the negative, includes an item of information for adapting the at least one planned procedural step based on the procedural information and, in the affirmative, includes approval of the at least one planned procedural step.

Abstract: A method for actuating an X-ray device during robot-assisted navigation of at least two objects introduced into a body, such as a hollow organ, of a patient by at least one robotic system, includes providing a first selection criterion for selecting one of the objects, and providing a second selection criterion for selecting one of the objects. One of the at least two objects is selected based on the first selection criterion and the second selection criterion, and recording parameters of the X-ray device are automatically set, such that the selected object in an X-ray image to be recorded is highlighted compared to the at least one other object. The selected object may be highlighted with respect to image quality, image flavor, positioning on the X-ray image, and/or a collimator setting of a collimator of the X-ray device. An X-ray image is recorded with the set recording parameters.

Abstract: The disclosure relates to a method for providing a result dataset, a method for providing a trained function, a provisioning unit, a medical imaging device, and a computer program product. The method for providing the result dataset includes capturing medical image data, wherein the medical image data maps a temporal change in an anatomical object in an examination object in a spatially and temporally resolved manner. The method further includes identifying at least one inhomogeneously deforming region of the anatomical object based on the image data and providing the result dataset based on the image data, wherein the result dataset has a dedicated map and/or at least one deformation parameter of the at least one inhomogeneously deforming region.

Abstract: Angiographic recordings are to be made more informative. To this end, a method for spatiotemporal fusion of time-resolved angiographic data sets is proposed. Respective 4D reconstructions are obtained from angiographic 3D data sets acquired from contrast agents administered at different sites. In both 4D reconstructions, a common vascular region is identified. For each contrast agent bolus, the corresponding time point or time course in the common vascular region is determined. Finally, the two 4D reconstructions are synchronized and fused.

Abstract: To enhance safety of interventional procedures, a method for monitoring an interventional procedure that is carried out using an artificial object, such as a catheter, is provided. At least one image of the interventional procedure is acquired. The at least one image is analyzed automatically with regard to a specified anomalous feature relating to a geometry and/or a time-dependent movement parameter and/or a flow behavior of the artificial object. A complication signal is automatically generated only if the specified anomalous feature is detected in the at least one image.

Abstract: A method for monitoring an orientation of a medical object, includes identifying planning information having a planning orientation for the medical object with respect to a reference point on an anatomical object that is arranged within an examination object. The orientation of the medical object with respect to the reference point is detected using an acquisition unit. The acquisition unit includes a medical imaging device and/or an acoustic and/or optical and/or electromagnetic sensor. A deviation between the planning orientation and the orientation of the medical object with respect to the reference point is identified, and a signal is provided depending on the identified deviation.

Abstract: To improve execution of image-based tasks, such as obtaining an x-ray image with a desired contrast while using a minimum x-ray dosage, a method in which one or more acquisition parameters of an image acquisition apparatus are automatically set as a function of the task is provided. An image of a biological tissue is acquired using the image acquisition apparatus for which one or more acquisition parameters have been automatically set. The task is executed based on the image of the biological tissue.

Abstract: For a simple monitoring of a robotic system that is configured for robot-assisted actuation of a movement of a medical object in a hollow organ of a patient, the robotic system includes at least one drive system, a robot control unit, and an acoustic sensor. A method is provided and includes receiving, by the acoustic sensor, acoustic signals of the robotic system during the operation of the robotic system for moving the medical object. At least one signal pattern is recognized in the received acoustic signals. The at least one recognized signal pattern is evaluated with respect to an associated action flow of at least one component of the robotic system. The method includes checking whether the action flow is an intended action flow, and actuating an action if the action flow is unintended.

Abstract: A computer-implemented method for providing a vascular image data record includes receiving a plurality of projection-X-ray images recorded in temporal succession. The plurality of projection-X-ray images at least partially map a common examination region of an examination object. The plurality of projection-X-ray images map a temporal change in the examination region of the examination object. A change image data record is determined in each case based on at least one region of interest of the plurality of projection-X-ray images. The at least one region of interest includes a plurality of image points. The change image data record in each case includes a time-intensity curve for each of the image points. The vascular image data record is generated based on the change image data record, and the vascular image data record is provided.

Abstract: A method is for determining a three-dimensional image dataset. In an embodiment, the method includes a first X-ray dataset of the examination volume being received, the first X-ray dataset including a two-dimensional first X-ray projection of the examination volume with respect to a first projection direction; and a second X-ray dataset of the examination volume being received, the second X-ray dataset including a second two-dimensional X-ray projection of the examination volume with respect to a second projection direction. Furthermore, a first three-dimensional image dataset of the examination volume is determined based on the two-dimensional first X-ray projection and the two-dimensional second X-ray projection. An effect of overlaps of vessels with respect to the first projection direction or the second projection direction can be reduced as a result of determining the first three-dimensional image dataset based on the first X-ray dataset and the second X-ray dataset.

Abstract: An inverse visualization of a time-resolved angiographic image data set of a vascular system of a patient that was recorded by a medical imager during the flow of a contrast medium through the vascular system is provided. The time-resolved angiographic image data set of the vascular system has a temporal sequence of frames of the vascular system corresponding to the contrast medium filling process. A data set from bolus arrival times for each pixel or voxel is determined. The bolus arrival time corresponds to the time in the temporal sequence at which a predetermined contrast enhancement due to the contrast medium filling first occurs. A data set of temporally inverted bolus arrival times with respect to the contrast medium filling is determined for each pixel or voxel, resulting in a temporally inverted sequence of frames with respect to the contrast medium filling. The time-resolved angiographic image data set in the temporally inverted sequence is visualized.

Abstract: A method for providing a specification include receiving a planning dataset, wherein the planning dataset has a pre-ascertained mapping and/or a model of an examination object. The method further includes capturing selection information relating to one or more available medical object(s) and determining the specification by applying a specification function to input data, wherein the input data is based on the planning dataset and the selection information, wherein the specification has suitability information and a desired path, wherein the desired path has a plurality of spatial and/or temporal control points, which control points specify desired positionings for the one available medical object or one of the plurality of available medical objects respectively, and wherein the suitability information assesses suitability of the at least one available medical object for the desired path. The method further includes providing the specification as output data of the specification function.

Abstract: A method for providing a result data set includes: acquiring a medical image data set of an object under examination that maps a change in the object under examination on a time-resolved basis, wherein the change starts and/or ends at different locations and at least partially different points in time within the object under examination. The method further includes identifying a spatiotemporal subregion in the image data set that maps the change in a region of interest of the object under examination, wherein the subregion is delimited spatially by the mapping of the region of interest and temporally by the earliest start and/or the latest end of the change mapped at the locations within the region of interest. The method further includes providing a result data set based on the subregion of the image data set, wherein the result data set maps the region of interest on a time-resolved basis.

Abstract: Some embodiments relate to solutions to providing a result image data set. At least one embodiment is based on an input image data set of a first examination volume being received. A result image parameter is received or determined. A result image data set of the first examination volume is determined by application of a trained generator function to input data. Input data is based on the input image data set and the result image parameter, and the result image parameter relates to a property of the result image data set. A parameter of the trained generator function is based on a GA algorithm (acronym for the English technical term “generative adversarial”). Finally, the result image data set is provided. Some embodiments relate to solutions for providing a trained generator function and/or a trained classifier function, in particular for use in solutions for providing a result image data set.

Abstract: A method for automatic actuation of at least one device in the medical environment including recording of at least one image in a medical environment with an arrangement in which at least one person of the medical staff and at least one device that is adjustable or movable by motorized mechanisms are present, segmentation of the image and identification of the at least one person and/or the at least one adjustable or movable device, evaluation of the arrangement in the image in terms of at least one ergonomic parameter with regard to the at least one person, determination of an adjustment or a movement of the at least one device, which improves the ergonomic parameter with regard to the at least one person, and actuation of the device for autonomous adjustment or movement of the device such that the ergonomic parameter is improved.

Abstract: A method for providing a comparison dataset is disclosed. The method includes providing a time-resolved first dataset that maps a first contrast medium flow in a region of interest of an examination object in a first period of time; providing a time-resolved second dataset that maps a second contrast medium flow in the region of interest in a second period of time after the first period of time; spatially registering the first and second datasets; identifying a mapping of at least one vessel section of the region of interest in the first and second datasets; temporally registering the first and second datasets; identifying a difference between the first and second contrast medium flows by a comparison of the registered first and second datasets; and providing the comparison dataset based on the registered first and second datasets, wherein the comparison dataset has at least one parameter characterizing the difference.

Abstract: A method for recording and processing image sensor data of an examination object that can be created by a medical imaging system, having the following steps: recording image sensor raw data of the examination object by way of an image detector of the imaging system, processing the image sensor raw data, wherein from the image sensor raw data, two resultant image datasets of the same examination object differing with regard to the image quality are created, wherein the image quality of a first resultant image dataset is configured for a human perception and the image quality of a second resultant image dataset is configured for a further processing by machine, and outputting the first resultant image dataset to a display unit and passing on the second resultant image dataset to an interface for further processing by machine.

Abstract: A computer-implemented method is for providing a difference image data record. In an embodiment, the method includes a determination of a first real image data record of an examination volume in respect of a first X-ray energy, and a determination of a multi-energetic real image data record of the examination volume in respect of a first X-ray energy and a second X-ray energy, the second X-ray energy differing from the first X-ray energy. The method further includes the determination of the difference image data record of the examination volume by applying a trained function to input data, wherein the input data is based upon the first real image data record and the multi-energetic real image data record, as well as the provision of the difference image data record.

Abstract: A mobile X-ray device with an adjustable recording system that is arranged on a device trolley is provided. The adjustable recording system has an X-ray source and an X-ray detector for recording X-ray images of an object. The mobile X-ray device includes a system controller for actuating the X-ray device, a calculation unit for real-time determination of a scattered radiation distribution from an X-ray radiation generated by the X-ray source in at least parts of the surrounding area of the X-ray device, and a display unit that is arranged on the device trolley and/or the recording system. The display unit is configured for display, taking place substantially in real time, of at least one item of information dependent upon the determined scattered radiation distribution in at least one part of the surroundings of the mobile X-ray device.

Abstract: A computer-implemented method includes, in an embodiment, receiving first X-ray projections of an examination volume in respect of a first X-ray energy and second X-ray projections in respect of a second X-ray energy, the first and second X-ray energies differing. The method further includes determination of a multienergetic real image data record of the examination volume based upon the first and second X-ray projections; selection of first voxels of the multienergetic real image data record based upon the multienergetic real image data record; selection of second voxels of the multienergetic real image data record based upon the first X-ray projections and the second X-ray projections, the first voxels including the second voxels and the second voxels mapping contrast medium in the examination volume. The method further includes provision of a constraint image data record and/or a difference image data record based upon the second voxels.