Abstract: A reference structure for use with a medical navigation system, includes an imaging structure, and a plurality of artificial markers arranged at predetermined locations on said imaging structure. The artificial markers are detectable by the medical navigation system, wherein the artificial markers have a known relationship to the imaging structure.

Abstract: Exemplary embodiments are directed to a method for detecting and tracking the position of a mobile transferring device/loading device of a bucket-wheel excavator or bucket chain excavator. The bucket-wheel excavator or bucket chain excavator includes an extraction device having a pivotable superstructure, which has inclinable cantilever, a track-drivable substructure, and a transferring device having a loading cantilever and renders conveyed material through a bench conveyor. An open-loop/closed-loop control device establishes the pivot angle and the inclination of the loading cantilever of the transferring device according to the signals of a plurality of sensors.

Abstract: A computer network system includes a controlling PC, at least one controlled PC controllable by the controlling PC via a data connection including a network, at least one central terminal having a display, and a video router. The video router is operatively coupled to each of the at least one controlled PCs and the at least one central terminal display and operative to transmit video or monitor signals from each of the controlled PCs to the at least one central terminal display.

Abstract: A computer network system includes a controlling PC, at least one controlled PC controllable by the controlling PC via a data connection including a network, at least one central terminal having a display, and a video router. The video router is operatively coupled to each of the at least one controlled PCs and the at least one central terminal display and operative to transmit video or monitor signals from each of the controlled PCs to the at least one central terminal display.

Abstract: A method for stimulating a particular area of a brain using a stimulation device includes detecting a spatial structure of a head and determining electrical and/or magnetic properties of at least one part of anatomical structures of the head. An energy amount to be provided by the stimulation device for stimulating the particular area of the brain is calculated automatically based on the spatial structure of the head and the determined electrical and/or magnetic properties of at least one part of the anatomical structures of the head.

Abstract: A reference structure for use with a medical navigation system, includes an imaging structure, and a plurality of artificial markers arranged at predetermined locations on said imaging structure. The artificial markers are detectable by the medical navigation system, wherein the artificial markers have a known relationship to the imaging structure.

Abstract: A computer network system includes a controlling PC, at least one controlled PC controllable by the controlling PC via a data connection including a network, at least one central terminal having a display, and a video router. The video router is operatively coupled to each of the at least one controlled PCs and the at least one central terminal display and operative to transmit video or monitor signals from each of the controlled PCs to the at least one central terminal display.

Abstract: The invention relates to a system for the combined shadow-free illumination of a pre-definable area and for referencing three-dimensional spatial co-ordinates, and to an active or passive referencing system, each in particular for referencing surgical or medical instruments. The system is characterized in that at least two cameras and the light source (operation lamp) are held together such that the optical signals detected by the cameras, for referencing three-dimensional spatial co-ordinates in the area illuminated by the light source, can be evaluated. Since the field of view of the light source, in its conventional use, is not obscured or only negligibly obscured, this field of view can simultaneously be used for optical navigation by the cameras held together with the light source. In accordance with the invention, the cameras are automatically aligned optimally for optical navigation. The cameras can be rigidly or flexibly connected to the light source.

Abstract: A safety device for an imaging medical apparatus comprising a patient entrance, in particular for a computer tomograph, a nuclear spin tomograph, a PET apparatus or a mobile x-ray apparatus such as for example a C-arc or a fluoroscope, wherein a proximity or contact detector is arranged in the area of the patient entrance. Furthermore, a braking device for a system comprising such an imaging medical apparatus and a patient carrier, which can be moved relative to each other, and to correspondingly equipped imaging medical apparatus.

Abstract: A method for visualizing a body volume, and a computer program product and a system for carrying out the method, wherein the method includes the steps of establishing a criterion for each pixel of a selected data set for whether or not the pixel is assigned to an image background; calculating a synthesized representation from at least two selected diagnostic data sets which are not identical, excluding the pixels assigned to an image background, the selected diagnostic data sets having a predefined spatial allocation with respect to each other; calculating each of the data values of the synthesized representation as a mathematical function of at least one data value of each of the selected data set; and displaying the synthesized representation of a data set whose data values represent the body volume two- or three-dimensionally on a display unit.

Abstract: A method for stimulating a particular area of a brain using a stimulation device includes detecting a spatial structure of a head and determining electrical and/or magnetic properties of at least one part of anatomical structures of the head. An energy amount to be provided by the stimulation device for stimulating the particular area of the brain is calculated automatically based on the spatial structure of the head and the determined electrical and/or magnetic properties of at least one part of the anatomical structures of the head.

Abstract: The invention relates to a system for the combined shadow-free illumination of a pre-definable area and for referencing three-dimensional spatial co-ordinates, and to an active or passive referencing system, each in particular for referencing surgical or medical instruments. The system is characterized in that at least two cameras and the light source (operation lamp) are held together such that the optical signals detected by the cameras, for referencing three-dimensional spatial co-ordinates in the area illuminated by the light source, can be evaluated. Since the field of view of the light source, in its conventional use, is not obscured or only negligibly obscured, this field of view can simultaneously be used for optical navigation by the cameras held together with the light source. In accordance with the invention, the cameras are automatically aligned optimally for optical navigation.

Abstract: A method for visualizing a body volume, and a computer program product and a system for carrying out the method, wherein the method includes the steps of establishing a criterion for each pixel of a selected data set for whether or not the pixel is assigned to an image background; calculating a synthesized representation from at least two selected diagnostic data sets which are not identical, excluding the pixels assigned to an image background, the selected diagnostic data sets having a predefined spatial allocation with respect to each other; calculating each of the data values of the synthesized representation as a mathematical function of at least one data value of each of the selected data set; and displaying the synthesized representation of a data set whose data values represent the body volume two- or three-dimensionally on a display unit.

Abstract: The invention relates to a method for two- or three-dimensionally visualizing a body volume, wherein a data set whose data values represent said body volume is displayed two- or three-dimensionally on a display, in which method a synthesized data set is computed from at least two selected diagnostic data sets which are not identical and have a predefined spatial allocation or relationship with respect to each other, wherein each of the data values of said synthesized data set is computed as a mathematical function of at least one data value of each selected data set, and said synthesized data set is displayed on the display unit. The two- or three-dimensional visualization of said synthesized data set may comprise more various items of image information than a selected data set and may thus be more informative and more accurate in detail.