Siemens Healthcare Gmbh

Siemens Aktiengesellschaft

Wei Wei

Gerhard Kleinszig

Alexander Gemmel

Markus Weiten

Rainer Graumann

Karl Barth

Thomas Mertelmeier

Markus Kowarschik

Mathias Hoernig

Michael Kelm

Hans Schweizer

Andreas Fieselmann

Björn Kreher

Adrian Egli

Adrian John

Tian Yi Qian

Benedict Swartman

Qiao Yang

Jing Zhou

Christoph Tilgener

Yan Bai

Mei Yun Wang

A brain tumor image segmentation method and device are disclosed. The disclosed method includes acquiring a basic white matter template generated based on brain magnetic resonance images of a plurality of healthy samples, collecting corresponding low, mid and high b-value diffusion weighted images of the brain of a patient, segmenting out a tumor region including the tumor body and the edema on each image based on the signal distribution of each image in a first set image group of the patient, removing the normal white matter region from the tumor region according to the basic white matter template and the high b-value diffusion weighted image, and classifying the value of the voxel in each image in a second set image group and a second apparent diffusion coefficient image obtained through calculations to obtain a tumor body region and an edema region.

Brain tumor image segmentation method, device and storage medium

A method for determining an alignment between at least two bone parts of an elongated bone system of a patient includes recording a plurality of partially spatially overlapping projection images by a recording system of an x-ray device during a translational movement of the x-ray device or the recording system in a direction of or parallel to a longitudinal axis of the bone system. Tomosynthesis image data of the bone parts is reconstructed from the recorded projection images, and an alignment angle between the at least two bone parts is determined or estimated at least partially based on the reconstructed tomosynthesis image data and/or the plurality of projection images.

Tomosynthesis method and xray recording apparatus

A method for generating a combined contrast medium and blood vessel representation of contrast-enhanced image data of breast tissue to be examined includes capturing first and second contrast-medium-influenced x-ray projection measurement data of the breast tissue with respective differing first and second x-ray energies. First and second image data sets are reconstructed based respectively on the first and second measurement data. A dual-energy image data set is ascertained based on the first and the second image data sets. A blood vessel image is ascertained based on at least one image data set. A blood vessel image is represented together with the dual-energy image data set in a combined contrast medium and blood vessel representation. An image data generating system is also provided.

Method and image data system for generating a combined contrast medium and blood vessel representation of breast tissue to be examined, computer program product and computer-readable medium

The disclosure relates to a mobile X-ray device having an equipment cart that is movable on wheels and has a lifting device on which a support assembly is arranged. A C-arm is mounted to the support assembly so as to be displaceable along the circumference of the support assembly, wherein the C-arm has an X-ray source and an X-ray receiver arranged opposite the X-ray source. In order to simplify the handling of a mechanical zoom on mobile X-ray devices, a motion controller is provided by which, in any given pose of the C-arm, a movement of the C-arm is controlled in such a way that the central axis extending between X-ray source and X-ray receiver is fixed in space.

Motion controllers for mobile X-ray devices

An apparatus and a method are provided for positioning an x-ray machine having an x-ray source and a detector. A second X-ray image is recorded once an x-ray apparatus has been positioned by using information of an alignment point in a first x-ray image.

Mobile x-ray machine

A medical apparatus has a plurality of movable elements that are remotely displaced. A display device receives inputs for positioning the movable elements from a user. A computing device that is coupled to the display device displays a model of the medical apparatus on the display device. The movable elements are displayed in the model in accordance with the received inputs for positioning. In response to a trigger signal of the user for moving the movable elements, the movable elements are driven so as to adopt the displayed position.

Medical apparatus and method of controlling a medical apparatus

The invention describes a method of performing intraoperative navigation during a surgical procedure, which method comprises the steps of arranging a video imaging device on a radioscopic imaging apparatus; obtaining an initial radioscopic image of a target and identifying a desired trajectory in a target; determining a first position of the radioscopic imaging apparatus relative to the target for which a central image axis of a radioscopic imaging unit is aligned with the desired trajectory; positioning the radioscopic imaging apparatus to align a central image axis of the video imaging device with the desired trajectory; and showing a live video feed of the surgical procedure on a monitor to track the position of a surgical implement relative to the desired trajectory.

Method of performing intraoperative navigation

A navigation aid for introducing an elongate medical penetration element into a patient. An X-ray image, containing a target region for the penetration element in a desired target position in a patient, is superimposed in alignment with video sequence images, containing at least in part the penetration element, to form a combination image sequence. The penetration element is captured in a start position and a desired penetration course of the penetration element at least to the target region of the penetration element in a desired target position, is visually displayed in the combination image sequence. A penetration element, such as a medical implant and/or instrument, in particular a K-wire (Kirschner wire), may carry a number of markers, such as additional bodies, coatings, elevations, and/or depressions, said markers altering a light reflection, are situated on and/or at and/or in the penetration element.

Navigation aid for introducing an elongate medical penetration element into a patient

A system for displaying an image includes at least one x-ray source for emitting radiation, a detector for acquiring the radiation emitted by the radiation source for generating an x-ray image, the detector being disposed opposite the radiation source in relation to an object to be examined, a computer unit for performing computational operations, a display device for displaying x-ray images acquired by the detector and at least one data acquisition unit for acquiring surface information of the object to be examined. The data acquisition unit is disposed on the detector side and the computer unit is configured to correlate the data acquired by the detector-side data acquisition unit with the x-ray image.

System and method for correlating object information with X-ray images

A method and a system for determining an angle between two parts of a bone that are twisted relative to one another about the axis of a bone shaft. The system is particularly suitable for determining the antetorsion angle of a femur. In order to determine an antetorsion angle of a bone easily intraoperatively, a method with the following steps is proposed: establishing the position of a first orientation feature assigned to a first part of the bone, in particular a femoral neck axis, using an imaging method, establishing the position of a second orientation feature assigned to a second part of the bone, in particular a condyle tangent or a condyle plane, using an imaging method, and determining the angle, in particular the femoral antetorsion angle, from the positions of the two orientation features.

Method and system for determining an angle between two parts of a bone

A method for creating a selective vessel image within a volume section of an examination object using an imaging system is provided. The method includes creating a vessel image of the volume section. The creating of the vessel image includes acquiring imaging data of the volume section within a predetermined time interval using the imaging system, determining a maximum opacity within the time interval on account of a contrast agent administered to the examination object per pixel of the vessel image, and segmenting vessels. The segmenting includes deciding, depending on the maximum opacity of the pixel, whether the respective pixel belongs to the vessel. The method also includes determining a contrast agent arrival time per pixel of the vessel image, and segmenting whether the respective vessel of the vessel image belongs to a vessel of the selective vessel image.

Creating a vessel image and fluoroscopically representing vessels

A method generates a 3D image data set of a volume to be examined, in which at least part of a foreign object is positioned. A set of 2D projection images is recorded, the image regions which present the foreign object are detected in at least two 2D projection images of the set. The image regions which present the foreign object are segmented in the at least two 2D projection images. A marking assigned to the segmented image regions is incorporated in the at least two 2D projection images. The 2D projection images, including the at least two 2D projection images having the incorporated markings, are used for the reconstruction of a 3D image data set containing the marking.

Method for generating display image data

A visualization of an X-ray region during the production of an X-ray recording of an object is produced. In order to reduce radiation exposure for a physician and/or the patient during X-ray recordings, a proposal is made to record a video image of a region, which is captured by a beam from the X-ray source, of the object, to display the video image and to represent at least a portion of the beam in the displayed video image.

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Forchheim, Germany

Wei Wei