Abstract: In a biplane X-ray system, a robot is used for moving at least a pair comprising an X-ray radiation source and an X-ray detector. The robot can be a buckling arm robot bearing an X-ray C-arm. It is also possible for the X-ray radiation source and X-ray detector each to be suspended from the ceiling of the room by means of robot arms.

Abstract: An imaging system for planning and monitoring a medical procedure is provided. The imaging system includes an image processing system and an imaging device operative to obtain a 3D data set and a 2D projection data set. The imaging device is communicatively coupled to the image processing system. The image processing system is operative to image register the 3D data set and the 2D projection data set from the imaging device.

Abstract: The invention relates to a method for the geometric registration of an imaging device outside an object, in particular a radiation device, with a device emitting fan-shaped signals, in particular an ultrasound emitter, within the object, having the steps: recording a 3D image data record containing the device emitting fan-shaped signals using the imaging device outside the object; determining the position of the fan of the device emitting fan-shaped signals from the 3D image data record relative to the position of the imaging device outside the object; and determining a plane containing the fan as well as a line which is essentially perpendicular thereto, which connects the center point of the radiation source and the detector of the imaging device outside the object.

Abstract: A method for temporally registering two image series datasets, each of which images a preferably periodically moving object and consists of time-resolved single images each composed of pixels or voxels, with a single image, recorded at a first instant, in the first image series dataset being in each case assigned to a single image, recorded at the same or another instant, in the second image series dataset, with the specific single image in the second image series dataset exhibiting maximum similarity to the single image in the first image series dataset being determined for registering a single image in the first image series dataset.

Abstract: To guarantee the ability to create stereo image pairs in real time, the invention relates a method for creating stereo image pairs of an object under examination with an x-ray system, featuring a recording unit comprising an x-ray detector and an x-ray source, with said recording unit being carried by an industrial robot and being able to be rotated around a center of rotation or around an axis of rotation is provided, in which a first x-ray image of the object under examination is recorded at a first angle of rotation of the recording unit around a center of rotation or an axis of rotation and subsequently a second x-ray image of the object under examination is recorded at a second angle of rotation of the recording unit around the center of rotation or the axis of rotation.

Abstract: In order to facilitate the optimal positioning of a patient resting on the couch of a C-arm computed tomography system, an input is received, via individual pixels or areas of pixels are selected in a predetermined image data set, thus enabling the area of interest to be highlighted. In addition, image data of the patient resting on the patient positioning couch is accordingly acquired. These two processes together make it possible to calculate the position, relative to the couch, of a marked-out point that is to coincide with the isocenter for the rotation of the C-arm, and from this at least one coordinate that serves to define the position of the couch can be derived. If this coordinate is displayed, a doctor performing the treatment can move the patient positioning couch to the appropriate position by hand.

Abstract: The invention relates to a method for navigating a catheter with a catheter tip through a blockage region in a vessel, especially a coronary vessel, whereby the catheter is pushed forward under real-time radiological observation. The underlying objective of the invention is to arrange such a method in such a way that it permits especially simple, rapid and low risk navigation of a catheter through the blockage region in the vessel. For this purpose, in accordance with the invention a three-dimensional path through the blockage region is determined by reference to a set of sectional images or a 3D representation of the blockage region, recorded beforehand as part of a preliminary investigation, whereby a data set including the path coordinates is brought into register with the real-time radiological images, and whereby the path or a projection of the path is visualized on a display, overlaid on the real-time radiological images.

Abstract: A system and method relate to enhanced medical workflows. Current anatomical data of a patient may be acquired, such as via a computed tomography or magnetic resonance procedure, just before and/or during an intervention. During the intervention, an electroanatomical map of the patient may be generated. The electroanatomical map may be generated from three-dimensional ultrasound data acquired via a medical device. The current anatomical data and electroanatomical map may be dynamically fused during the intervention. The fused data may be displayed and/or used to localize a current position of the medical device in real-time. The medical device may be a catheter employing a multi-dimensional forward-looking array of sensors. In one aspect, the enhanced workflow may be associated with an ablation procedure or other intervention performed in an electrophysiology lab.

Abstract: A method for guiding stent deployment during an endovascular procedure includes providing a virtual stent model of a real stent that specifies a length, diameter, shape, and placement of the real stent. The method further includes projecting the virtual stent model onto a 2-dimensional (2D) DSA image of a target lesion, manipulating a stent deployment mechanism to navigate the stent to the target lesion while simultaneously acquiring real-time 2D fluoroscopic images of the stent navigation, and overlaying each fluoroscopic image on the 2D DSA image having the projected virtual stent model image, where the 2D fluoroscopic images are acquired from a C-arm mounted X-ray apparatus, and updating the projection of the virtual stent model onto the fluoroscopic images whenever a new fluoroscopic image is acquired or whenever the C-arm is moved, where the stent is aligned with the virtual stent model by aligning stent end markers with virtual end markers.

Abstract: To avoid manual adjustments, the invention relates to a method for displacing a superimposed measuring surface on a sensor surface of an x-ray detector in an x-ray system, with an x-ray source and the x-ray detector forming a recording system and being at a fixed distance from one another, with the recording system being moveable in a three-dimensional manner relative to an object to be examined, comprising: the superimposed measuring surface is displaced on the sensor surface of the x-ray detector by a first distance in a first direction; and the recording system is moved by a second distance in parallel with the first distance in a second direction, which is opposite to the first direction, whereby after implementing one of the two steps, the other step is respectively automatically implemented such that a previously superimposed examination area of the object remains superimposed on the displaced measuring surface.

Abstract: The invention relates to a method for reducing image noise in the context of capturing at least one radiation-based image of a region of interest using two different radiation spectra, in particular two different x-ray radiation spectra, comprising the following steps: capturing raw images of the region of interest using the two different radiation spectra with in each case mutually paired measured values; and to separate different materials in the region of interest, applying to the captured raw images at least one inversion operator with integrated noise filtering, said operator describing a transition from a measured value pair to an assigned reconstruction value pair.

Abstract: In a biplane X-ray system, a robot is used for moving at least a pair comprising an X-ray radiation source and an X-ray detector. The robot can be a buckling arm robot bearing an X-ray C-arm. It is also possible for the X-ray radiation source and X-ray detector each to be suspended from the ceiling of the room by means of robot arms.

Abstract: The invention relates to a medical diagnostic system having two C-arms which are adjustable with the aid of two drive means and serve as retaining devices for one medical measuring system in each case. At least one evaluation unit and at least one display element are provided for each medical measuring system. The first measuring system is an X-ray measuring system comprising an X-ray emitter and an X-ray detector and has a high spatial resolution. The second measuring system is a nuclear medicine measuring system for visualizing tissue functions. Accurate and rapid medical diagnoses and interventions are possible based on image information generated by both measuring systems.

Abstract: With an x-ray imaging system with a moveable part, obstacles can stand in the way of the movement of the moveable part. In accordance with the invention, video cameras capture the occupation of the space by objects using volume elements. It is possible to determine at a target movement of the moveable part which volume elements are passed through during this. If one of these volume elements proves to be a volume element occupied by an object, the movement of the moveable part is prevented, otherwise it is enabled or actively implemented.

Abstract: The invention relates to an image system and a method for supporting the navigation of interventional tools when performing imaging controlled minimally invasive interventions within the body of a patient in a predetermined intervention plane, which serves to improve the precision and reliability of interventional accesses that are required for performing a histological tissue sample removal under CT or MRT based image-oriented monitoring, or in the context of tumor therapy or pain therapy. Directional deviations, away from the intervention plane, of the actual course of an interventional tool from a predeterminable desired course are captured and presented for display by registering the shortened represented total length or a shortened represented partial length of this interventional tool in the 2D projection representation of a fluoroscopic radioscopy recording that was recorded in a 2D projection direction running normally relative to the intervention plane.

Abstract: The invention relates to a registering device for registering an object in at least two dimensions featuring an x-ray transmitter and a detector for the x-rays arranged in a registering plane. The registering device also features a positioning device connected to the detector and the transmitter in such a way that the detector can register x-rays which are transmitted through the object onto the registering plane in differing spatial orientations of the projection axis. The registering device comprises an image reproduction unit to reproduce the data set and an input for a body signal representing an organ movement of the object. The registering device associatively moves the x-ray transmitter or the detector as a function of the body signal so that the projection axis follows the organ movement.

Abstract: The invention relates to a method and a device for making correction information for correcting a guidance direction of an instrument. Based on a current position of the tip of the instrument and the current guidance direction of the instrument and the position of a target point in an object, a first straight line indicating the current guidance direction and a second straight line defined by the tip of the instrument and the target point in the object are determined. The second straight line intersects the first straight line and indicates the desired guidance direction. Based on the position of the first and second straight lines relative to one another, a digital item of correction information is specified, wherein the correction image has a correction diagram located in a plane in the perspective of the current guidance direction of the instrument.

Abstract: A detection device for detection of an object in up to three dimensions by means of x-ray radiation in directions of detection differing from each other. The invention relates to a detection device for detecting an object in up to three dimensions with an x-ray source and a detector for the x-rays arranged in a detection plane, which is arranged and embodied so as to detect the x-rays and to create at least one 2D dataset which represents the object in a projection through the object onto the detection plane. The detection device 1 also features a C-arm connected to the x-ray source and to the detector and a control facility effectively linked to the C-arm, which is embodied to move the C-arm, depending on a control signal received on the input side, in at least two or three rotational degrees of freedom and to hold it in a detection position represented by the control signal.

Abstract: A method is provided to image an organ of the human or animal body using and acquisition device rotating over an angle, in that the rotation speed of the rotating acquisition device is modulated dependent on a reference signal that represents a current movement state of the organ to be imaged. Additionally or alternatively, the measurement interval in which the acquisition of the organ ensures during the rotation can respectively be adapted using the reference signal to a cycle duration of the movement of the organ to be imaged. Moreover, a corresponding apparatus to implement such a method is provided.

Abstract: There is described a medical examination and/or treatment apparatus with an electromagnet for generating a magnetic field for navigating a medical instrument and an x-ray device having an x-ray source and an x-ray detector attached to a bracket for visual control during the navigation, with the x-ray source and the x-ray detector being arranged on the electromagnet embodied as a hollow cylinder, on the front ends of which are located two ring coils which are arranged in parallel, between which a number of saddle coils arranged in the peripheral direction are arranged, with the hollow cylinder being arranged on a bracket which can be moved about a number of axes.