Abstract: Methods for operating medical imaging devices and medical imaging devices are disclosed herein. In one example, the medical imaging device includes a user interface device for displaying information relevant to an imaging process to a user and/or receiving user input relevant to an imaging process and at least one component controllable according to a user command entered using the user interface device, wherein the user interface device includes at least one pair of mixed reality smart glasses, whereby a virtual assistance line indicating the direction of view of a wearer of the smart glasses is projected into the field of view of the smart glasses, wherein upon reception of at least one user command at least one component is controlled based on the user command and the direction defined by the assistance line.

Abstract: An intraoperative, marker-less visualization system and method for visualizing three-dimensional surface structures and depth structures of a patient during an intervention. A C-arm carries a C-arm projection module and a camera, and visualization spectacles include an HMD (head-mounted device) projection module and a camera. The projection modules serve for projecting structured light. A processor computes a combined image data set in order to project the latter onto spectacle lenses of the visualization spectacles.

Abstract: Methods for operating medical imaging devices and medical imaging devices are disclosed herein. In one example, the medical imaging device includes a user interface device for displaying information relevant to an imaging process to a user and/or receiving user input relevant to an imaging process and at least one component controllable according to a user command entered using the user interface device, wherein the user interface device includes at least one pair of mixed reality smart glasses, whereby a virtual assistance line indicating the direction of view of a wearer of the smart glasses is projected into the field of view of the smart glasses, wherein upon reception of at least one user command at least one component is controlled based on the user command and the direction defined by the assistance line.

Abstract: A method is disclosed where at least one first 3D image data set is received via a first interface, the first 3D image data set including 3D images of a vascular segment of a patient at different time points. On the basis of the first 3D image data set, both a first hemodynamic parameter of the vascular segment and the spatial course of the vascular segment are then determined. This additional information enables the calculation of a digital 3D model of the stent graft on the basis of the first hemodynamic parameter of the vascular segment and on the basis of the spatial course of the vascular segment. Hence, the 3D model takes into account the first hemodynamic parameter and the spatial course so that a stent graft based on the digital 3D model is adapted individually to the anatomy of a patient via a 3D printer.

Abstract: An intraoperative, marker-less visualization system and method for visualizing three-dimensional surface structures and depth structures of a patient during an intervention. A C-arm carries a C-arm projection module and a camera, and visualization spectacles include an HMD (head-mounted device) projection module and a camera. The projection modules serve for projecting structured light. A processor computes a combined image data set in order to project the latter onto spectacle lenses of the visualization spectacles.

Abstract: Speech intelligibility is to be improved in hearing devices and in particular in hearing aids. A method for reconstructing a speech signal is therefore proposed, wherein a predefined amplitude spectrum of a speech component is stored. The amplitude spectrum of an input signal containing the speech signal is acquired. At least one matching portion and one non-matching portion of the predefined amplitude spectrum with respect to the amplitude spectrum of the input signal is detected. Finally the gain of the input signal in the non-matching portion of the amplitude spectrum is varied such that a closer match with the predefined amplitude spectrum is achieved compared to the original gain.

Abstract: An apparatus for measuring a distance to an eardrum has an optical sensor and a signal-processing device. The optical sensor acquires an image of the eardrum and the signal-processing device determines an area or separation extending perpendicular to the spacing distance to be measured in the image and determines the spacing distance to the eardrum as a function of the determined area or separation. A corresponding method includes the steps of acquiring an image of the eardrum, determining an area or separation extending perpendicular to the distance to be measured in the image, and determining the distance as a function of the determined area or separation. A projection image may be projected onto or into a vicinity of the eardrum and then the distance can be determined from the separation between the projection image and the eardrum or the image center of the image.

Abstract: A method for operating a hearing apparatus includes determining feedback events, in which feedback suppression responds and/or in which feedback is detected above a predeterminable feedback threshold value, determining a frequency of the feedback events within a predeterminable duration and emitting a signal if the determined frequency exceeds a predeterminable frequency threshold value. A time instant for changing an earmold which is no longer optimally positioned and is the cause of a frequent feedback can therefore be advantageously predicted in a timely manner. A computer program product for implementing the method and a hearing apparatus with acoustic feedback suppression and/or acoustic feedback identification, are also provided.

Abstract: A method at least partially determines acoustic feedback of a hearing device worn by a hearing device wearer. The method includes a detection of the geometry of the auditory canal and/or the concha of the ear of the hearing device wearer and a determination of the feedback from the detected geometry. The thus determined feedback can also be used to adjust a hearing device. This is advantageous in that a measurement of the feedback does not have to be implemented.