Abstract: The invention relates to an anaesthesia procedure and associated anaesthetic equipment (3). In said procedure, a first respiratory gas (G1) is supplied to an anaesthetized patient (15) through a ventilator (3) with unidirectional flow or rapidly alternating flow direction. At least one adjustment parameter (F) of the ventilator (3) is controlled or regulated in such a manner that a current position (LA) of at least one body part (36) of the patient (15) is adjusted to a specified desired position (LS).

Abstract: For estimating the scattered radiation dose, a scattered radiation model is provided, which indicates a spatial distribution of the scattered radiation to be expected in the vicinity of a radiation source during predefined use of the radiation source . A mobile electronic device is used to determine a position of the mobile electronic device relative to the radiation source. The mobile electronic device is used to determine at least one dose descriptor of the scattered radiation to be expected according to the use of the radiation source in dependence on the scattered radiation model and in dependence on the determined position.

Abstract: In an imaging method, a first image is generated at a first capture time by an imaging apparatus, the first image representing part of an object to be depicted. A second image is generated at a second capture time after the first capture time, the second image representing the part of the object to be depicted. A further first image is generated based on the first image using a predefined model relating to a development over time of a contrast agent present in the object to be depicted when generating the first image, the further first image taking into account development over time of the contrast agent from the first capture time to the second capture time. A further second image is generated as a function of the second image and further first image, wherein an effect of the contrast agent on the second image is at least partially compensated.

Abstract: A representation apparatus for displaying a graphical representation of an augmented reality includes a capture unit, a first display unit, and a processing unit. The first display unit is at least partially transparent. The capture unit is configured to capture a relative positioning of the first display unit relative to a representation area of a second display unit. The processing unit is configured to determine an observation geometry between the first display unit and the representation area of the second display unit based on the relative positioning, receive a dataset, generate the augmented reality based on the dataset, and provide the graphical representation of the augmented reality via virtual mapping of the augmented reality onto the representation area along the observation geometry. The first display unit displays the graphical representation of the augmented reality in at least partial overlaying with the representation area of the second display unit.

Abstract: The invention relates to a method for identifying a change in truncation of an examination object between first projection photographs of the examination object generated by a CT apparatus, and second projection photographs of the examination object generated by the CT apparatus, comprising the following steps to be carried out by a control facility. Receiving a first dataset, comprising the first projection photographs of the examination object; receiving a second dataset, comprising the second projection photographs of the examination object; correlating the first dataset with the second dataset; establishing the change in truncation of the examination object between the first projection photographs and the second projection photographs when satisfaction of at least one predefined change criterion between the datasets is captured; and outputting a predetermined output signal when the change in truncation between the first projection photographs and the second projection photographs is established.

Abstract: Systems and methods for image-based guidance for ultrasound intervention are provided. The system may include: an imaging device (e.g., an X-ray device, a Computed Tomography (CT) device, or a Magnetic Resonance Tomography (MRT) device) for generating an image dataset of an object of the intervention; an ultrasound transducer for generating ultrasound waves, the ultrasound transducer being mounted to a stand and/or a robot; a basin containing a liquid coupling composition for improving the transmission of ultrasound waves generated by the transducer to the object of the intervention; and a liquid level determining arrangement for determining a liquid level of the coupling composition in the basin. The liquid level determining arrangement may include a mechanical sensor, an electrical sensor, an acoustic sensor, an optical sensor, a camera, a floater, a scale, a visible marking, or a combination thereof.

Abstract: What is provided is a method for preparing the observation of a fluorescence intensity of fluorescence radiation of a fluorescent dye in an observation object (3) that comprises object regions (3A-H) that differ from one another in terms of their depth and/or their orientation, wherein the observation is intended to be implemented using an optical observation system (100) using which fluorescence radiation is able to be observed, provided that this has a certain minimum intensity. The method comprises the following steps: determining the parameter value of at least one parameter which influences the observation of the fluorescence intensity, and simulating the fluorescence intensity expected for the respective object regions (3A-H) on the basis of the determined parameter value of the at least one parameter and a model of the influence of the at least one parameter on the fluorescence intensity.

Abstract: A method for creating at least one correction value for correcting fluorescence intensities in a fluorescence image obtained with an optical observation system includes determining the parameter value of at least one parameter of the optical observation system which influences the observation of the fluorescence intensity, and generating the at least one correction value for correcting the fluorescence intensities in the fluorescence image based on the determined parameter value and the influence of the at least one parameter which influences the observation of the fluorescence intensity on the fluorescence intensities. A parameter of the illumination system serves as the at least one parameter which influences the observation of the fluorescence intensity. Additionally, a computer program, a computer-implemented method, a data processing unit, and an optical observation system for creating at least one correction value for correcting fluorescence intensities in a fluorescence image are provided.

Abstract: The disclosure relates to a computer-implemented method for determination of a bone cement volume of a bone cement for a percutaneous vertebroplasty, which reduces complications due to the information provided by the method. The computer-implemented method includes: reading in or receiving data about a bone structure of a bone section; determining a bone density distribution of the bone section depending on the data; determining a bone space in the bone section depending on the determined bone density distribution, wherein a bone density of the bone space is less than a predetermined density threshold value; determining a bone space volume of the determined bone space; and determining and outputting the bone cement volume depending on the determined bone space volume.

Abstract: A system for positioning a medical object at a desired depth includes a light guiding facility and a processing unit. The processing unit is configured to receive planning information that specifies a desired depth for an arrangement of a predefined section of a medical object in an examination object with respect to an entry point of the medical object in the examination object. The medical object has a mark that has a predefined relative positioning with respect to the predefined section. The processing unit is configured to control the light guiding facility for emitting a light distribution as a function of the planning information and the predefined relative positioning such that the light distribution illuminates the mark if the predefined section is arranged at the desired depth.

Abstract: A method for planning a recording of an X-ray image of a patient by an X-ray system. The X-ray system includes a recording system that may be adjusted into a large number of projection geometries with an X-ray source and an X-ray detector, using a mobile device comprising a display area. The method includes creating at least one first recording of a recording region of the patient by a capturing apparatus, for example an optical camera, providing a patient model of the patient anatomy of the patient, capturing the position and orientation of the manually positioned mobile device, creating a virtual X-ray image of at least one part of the patient using the patient model, at least the first recording and the position and/or orientation of the mobile device, and displaying the virtual X-ray image on the display area of the mobile device.

Abstract: A device for orienting a medical object in respect of an object under examination includes an orientation element, a guide element, an ancillary element, and a light guiding device. The orientation element is movably mounted about a center of rotation and is configured for the longitudinal guidance of the medical object along a guide axis. The ancillary element includes an identification marker configured to be arranged in the center of rotation. The light guiding device is configured to emit a predefined distribution of light for specification of a path. The arrangement of orientation element and ancillary element may be moved about the center of rotation arranged on the path, such that the predefined distribution of light illuminates the identification marker with a predefined light pattern, when the guide axis of the orientation element is oriented in a defined positional relationship in respect of the path.

Abstract: A pressure control system for providing an interventional pressure to be applied to a defined area of a patient during a pre-interventional imaging process with an imaging system is provided. Therein, the interventional pressure corresponds to an interventional pressure applied to the defined area of the patient during an intervention via a medical technology device. The pressure control system includes a pressure plate, a force module, and a positioning apparatus. Therein, the force module is configured to apply a force on the pressure plate. Therein, the force on the pressure plate generates the interventional pressure. Therein, the positioning apparatus is configured to position the pressure plate and the force module relative to the patient.

Abstract: A device for orienting a medical object in respect of an object under examination includes an orientation element, a guide element, an ancillary element, and a light guiding device. The orientation element is movably mounted about a center of rotation and is configured for the longitudinal guidance of the medical object along a guide axis. The ancillary element includes an identification marker configured to be arranged in the center of rotation. The light guiding device is configured to emit a predefined distribution of light for specification of a path. The arrangement of orientation element and ancillary element may be moved about the center of rotation arranged on the path, such that the predefined distribution of light illuminates the identification marker with a predefined light pattern, when the guide axis of the orientation element is oriented in a defined positional relationship in respect of the path.

Abstract: A therapeutic apparatus for therapeutic ultrasonic treatment of a tissue region that contains a flowing liquid has at least one ultrasonic source and a control unit for activating the ultrasonic source in order to radiate ultrasonic pulses according to a pulse parameter set into the tissue region. The therapeutic apparatus has a measuring system configured to determine a flow velocity of the liquid and a focus control system configured to move a focus region of the ultrasonic pulse relative to the tissue region over a longitudinal portion. A movement direction of the focus region therein corresponds to a flow direction of the liquid and a movement velocity of the focus region corresponds to the flow velocity.

Abstract: The movement of an object, in particular of an organ during histotripsy treatment is determined specifically for repositioning purposes. This is done by producing bubbles in or at the object. The bubbles are detected, and their movement is recorded. The movement of the object is estimated from their movement. If applicable, a focal point of a therapy apparatus may be repositioned in accordance with the movement of the object.

Abstract: A method for generating synthetic X-ray images is provided. A first neural network is provided to generate at least one synthetic X-ray image having specified quality. A second neural network is provided to ascertain characterizing properties from at least one secondary X-ray image for the first neural network. The first neural network and the second neural network may be trained by primary X-ray images of specified minimum quality. The at least one secondary X-ray image has a lower quality compared to primary X-ray images. The at least one synthetic X-ray image is generated with the aid of the provided characterizing properties by the first neural network. The at least one synthetic X-ray image is improved with regard to quality compared to the at least one secondary X-ray image.

Abstract: The disclosure relates to a medical engineering robot, a medical system, a method for operation thereof, a corresponding computer program, and a corresponding computer-readable storage medium. By controlling a pose of an instrument arm of the robot relative to a respective examination object to be treated or to be examined by the robot, the disclosure makes provision for automatically bringing the instrument arm into contact with the examination object and through this for setting a predetermined pose of the examination object.

Abstract: A therapeutic apparatus for therapeutic ultrasonic treatment of a tissue region that contains a flowing liquid has at least one ultrasonic source and a control unit for activating the ultrasonic source in order to radiate ultrasonic pulses according to a pulse parameter set into the tissue region. The therapeutic apparatus has a measuring system configured to determine a flow velocity of the liquid and a focus control system configured to move a focus region of the ultrasonic pulse relative to the tissue region over a longitudinal portion. A movement direction of the focus region therein corresponds to a flow direction of the liquid and a movement velocity of the focus region corresponds to the flow velocity.

Abstract: A method for generating synthetic X-ray images is provided. A first neural network is provided to generate at least one synthetic X-ray image having specified quality. A second neural network is provided to ascertain characterizing properties from at least one secondary X-ray image for the first neural network. The first neural network and the second neural network may be trained by primary X-ray images of specified minimum quality. The at least one secondary X-ray image has a lower quality compared to primary X-ray images. The at least one synthetic X-ray image is generated with the aid of the provided characterizing properties by the first neural network. The at least one synthetic X-ray image is improved with regard to quality compared to the at least one secondary X-ray image.