Abstract: A computer-implemented method for use in rendering a volumetric dataset representing a volume, comprises: obtaining first volume data representing a first portion of the volume represented by the volumetric dataset; obtaining second volume data representing a second portion of the volume represented by the volumetric dataset, wherein at least some of the second portion of the volume is outside of the first portion of the volume, and wherein a second data size per unit volume of the second volume data is lower than a first data size per unit volume of the first volume data; and performing a first physically based rendering process on a combination of the first volume data and the second volume data to generate first visual parameter data for rendering the volumetric dataset.

Abstract: A method for providing a similar medical image comprises: receiving a first medical image related to a first patient; determining a first feature vector by applying a first machine learning model to the first medical image, the first machine learning model having been trained based on training datasets, and each of the training datasets including a training medical image and related non-imaging data; receiving a plurality of second feature vectors; determining, based on the first feature vector, a similar feature vector from the plurality of second feature vectors; selecting the similar medical image from the plurality of second medical images, wherein the similar medical image is related to the similar feature vector; and providing the similar medical image.

Abstract: An imaging system and a control method and apparatus therefor, a computer medium, and a program product. The medical imaging system includes an examination component operable to align a ray field with a target region of a test subject. The method includes: acquiring contour information of the test subject and initial position information of the test subject relative to the examination component; acquiring real-time position information of the examination component; determining a part of the target region that is located in the ray field based on the contour information of the test subject, the initial position information of the test subject relative to the examination component, and the real-time position information of the examination component; determining a target attitude of a filter in a collimator assembly of the medical imaging system based on said part; and controlling the filter to move toward the target attitude.

Abstract: A radiation protection apparatus of a medical X-ray imaging system for absorbing scattered X-rays emerging from an examination region, wherein the radiation protection apparatus comprises: a plurality of lead glass elements, wherein each of the plurality of lead glass elements is configured to move between a rest position and a shield position, and also relative to one another. In the shield position, the plurality of lead glass elements form a radiation shield arranged between the examination region and a region occupiable by medical staff.

Abstract: The disclosure relates to a radio-based physiological acquisition system for an RF-shielded room comprising a peripheral acquisition unit with a peripheral transmitter, a peripheral control unit, and a door sensor unit. The door sensor unit is configured to determine an opening status of a door in an RF shield around the RF-shielded room. The peripheral acquisition unit is configured to switch off the peripheral transmitter depending on the opening status of the door, e.g. when the door is open.

Abstract: Computed tomography (CT) measurement data of the patient is acquired using a CT device having a quantum counting X-ray detector, and the CT measurement data is processed to generate result data, considering a specific information content of the CT measurement data resulting from the use of the quantum counting X-ray detector in acquiring the CT measurement data. The result data is suitable for use in the planning of irradiation of the patient. The result data is provisioned to an interface such that the result data is usable for planning the irradiation of the patient.

Abstract: A system and a method for measuring a maturation stage of a biological organ are based on quantitative MR maps for the organ. The method includes acquiring with a first interface and for a subject, a quantitative MR map for the organ. The quantitative MR map includes voxels each characterized by a quantitative value. The quantitative value of each voxel represents a measurement of a physical or physiological property of a tissue of the biological organ for the voxel. The method also includes applying to the quantitative map a trained function to estimate the subject organ maturation stage, and the trained function outputting an age. The method provides with a second interface the maturation stage of the organ of the subject as being the output age.

Abstract: A method is for inserting a further data block into a first ledger, the first ledger including data blocks. In an embodiment, the method includes receiving a further medical dataset via an interface; determining the further data block via a calculation unit. The further data block includes the further medical dataset and a further link information. The further link information includes a hash of at least one of the data blocks of the first ledger. Finally, in an embodiment the method includes inserting the further data block into the first ledger via the calculation unit.

Abstract: A method for creating calibration data for processing accelerated measurement data of an object to be examined using a magnetic resonance system. The method includes recording measurement data sets using an acquisition acceleration method, recording calibration data sets, and determining processed measurement data sets from the accelerated measurement data sets using the calibration data sets so that effects of the acquisition acceleration method used are eliminated in the processed measurement data sets. The recording of the calibration data sets includes an application of at least one attenuation method for attenuating signals causing phase errors.

Abstract: A method and apparatus are provided for limiting a B1 field used for magnetic resonance imaging (MRI). The techniques described herein reduce a waste of performance of the B1 field while ensuring patient safety and improving the MR imaging quality.

Abstract: The disclosure relates to a method for correcting a movement of an object occurring during an MR image acquisition. The method includes: determining a motion model describing possible movements of the object based on a defined number of degrees of freedom; detecting a motion of a marker provided on the object with a motion sensor; determining a description of the motion model in a common coordinate system; determining the motion of the marker in the common coordinate system; determining a first motion of the object in the common coordinate system using the description of the motion model, the first motion being the motion that best matches the determined motion of the marker in the common coordinate system using the defined number of degrees of freedom; and correcting the movement of the object based on the determined first motion in order to determine at least one motion corrected MR image.

Abstract: One or more example embodiments relates to an image recording facility for a medical imaging system including a radiation source configured to emit radiation; a patient table having a tabletop for supporting a patient during image recording; a radiation detector configured to detect the radiation, the radiation detector being in or under the tabletop; a first bearing apparatus of bearing apparatuses bearing the radiation source; and a second bearing apparatus of the bearing apparatuses bearing the patient table.

Abstract: At least one example embodiment relates to a computer-implemented method for providing stroke information, the method comprising receiving computed tomography imaging data of an examination area of a patient, the examination area of the patient comprising a plurality of brain regions, at least one brain region of the plurality of brain regions being affected by a stroke, receiving brain atlas data, generating registered imaging data based on the computed tomography imaging data and the brain atlas data, the registered imaging data being registered to the brain atlas data, generating the stroke information regarding the stroke based on a set of algorithms and the registered imaging data, and providing the stroke information.

Abstract: A medical object for arrangement in an object under examination includes an optical fiber. The optical fiber is configured to contact at least one light source optically. The medical object further includes multiple photoacoustic absorbers that are arranged in sections along a direction of longitudinal extension of the optical fiber and/or along a periphery of the medical object. The multiple photoacoustic absorbers are configured to be arranged at least in part in the object under examination. The optical fiber is configured to conduct an excitation light emitted by the at least one light source to the multiple photoacoustic absorbers. The multiple photoacoustic absorbers are configured to be excited by the excitation light for the photoacoustic emission of ultrasound.

Abstract: One or more example embodiments relates to a method for performing scans via a computed tomography system, wherein the method comprises rotating a rotor of a gantry of the computed tomography system relative to a patient; performing a topogram scan via the computed tomography system including recording projection data which enables an overview of at least a part of the patient; establishing settings for parameters for a main scan based on the projection data, the parameters for the main scan specifying at least one of at least one irradiation power level or an examination region for the main scan; and performing the main scan of the patient using the computed tomography system based on the parameters for the main scan, wherein the topogram scan and the main scan are performed during the rotating.

Abstract: The disclosure describes a medical imaging apparatus comprising a couch on which an object can be positioned for a medical imaging examination, a first acquisition apparatus which is embodied for acquiring a position of a region to be examined of the object, a projection apparatus which is embodied for a projection and/or display of a feedback marking at the acquired position of the region to be examined, a linear axis unit which comprises a drive unit for moving the projection apparatus, and a second acquisition apparatus, which is embodied to acquire position data of a medical operator during preparation of the object for the medical imaging examination, wherein the projection apparatus, using the acquired position data of the second acquisition apparatus, is tracked to a position of the medical operator in the longitudinal direction of the couch during preparation of the object.

Abstract: An operating method comprises: triggering administration of a first contrast medium application for presaturation of the body region with contrast medium, wherein the first contrast medium application is administered to achieve a desired equilibrium concentration; triggering administration of a second contrast medium application in the form of a bolus larger than in the first contrast medium application; recording spectral image data at at least two different beam energies; reconstructing images from the spectral image data; and outputting the images.

Abstract: A magnet arrangement is for use in a magnetic resonance imaging system including at least one magnet including a high temperature superconductor to provide a magnetic field in an imaging volume for acquiring magnetic resonance imaging data. A magnetic resonance imaging system includes a magnet arrangement with at least one magnet, including a high temperature superconductor, to confine an imaging volume in at least one spatial direction. The magnetic resonance imaging system is configured to acquire magnetic resonance imaging data from at least a body region of a patient positioned in the imaging volume. Further a method is for manufacturing a magnet arrangement via an additive manufacturing device, including aligning a first magnet segment with a second magnet segment and bringing the first magnet segment into contact with the second magnet segment; and performing a joining process to bond the first magnet segment to the second magnet segment.

Abstract: The computed tomography device has a gantry with an opening and a radiation protection apparatus for covering the opening. The radiation protection apparatus includes a radiation protection cover and a pivoting apparatus, wherein an object under examination may be inserted into the opening along a system axis of the gantry when the radiation protection cover is in a first position relative to the gantry. The radiation protection cover is pivotably mounted relative to the gantry about a pivot axis by the pivoting apparatus such that a first pivoting motion of the radiation protection cover about the pivot axis enables the radiation protection cover to be lowered relative to the gantry from the first position to a second position. The computed tomography device may furthermore include at least one of a lighting system or a camera system.