Siemens Aktiengesellschaft

Siemens Corporation

Siemens Medical Solutions Usa, Inc.

Siemens Corporate Research, Inc.

Siemens Healthcare Gmbh

The Ohio State University

Siemens Canada Limited

National Institutes of Health

Jens Guehring

Marie-Pierre Jolly

Michaela Schmidt

Christoph Guetter

Peter Speier

Sven Zuehlsdorff

Hui Xue

Stephan Nufer

Andreas Greiser

Christophe Chefd'hotel

Edgar Mueller

Arne Littmann

Randall Kroeker

Dorin Comaniciu

Bogdan Georgescu

Shaohua Kevin Zhou

Ali Kamen

Benjamin L Odry

Bernhard Geiger

Yu Ding

Arun Krishnan

Mehmet Akif Gulsun

Orlando P Simonetti

Xiaoguang Lu

Jingdan Zhang

Neil Birkbeck

Xiaoming Bi

Carmel Hayes

Sebastian Vogt

Wolfgang Wein

Edgar Müller

Peter Weale

Susanne Bay

Nathan S Lay

Saurabh Shah

Juergen Soldner

Steven Charles Dilliplane

Andreas Grimme

Aurelien Stalder

Manuela Rick

Ingrid Stahl

Razvan Chisu

Ramamani Ramraj

Display screen or portion thereof with a graphical user interface

In a computer network and a method for displacement of an object within a computer network, the computer network has a first computer system with a first graphical user interface and a second computer system with a second graphical user interface. A selection view of the second graphical user interface can be presented on the first graphical user interface, and a target location can be selected in the selection view. An object on the first graphical user interface can be displaced onto the target location.

Computer network and method for displacement of an object within a computer network

In MR imaging of a predetermined volume segment of a living examination subject, the examination subject is stimulated with a defined stimulation pattern, MR data of the predetermined volume segment, are acquired, and MR images based on the MR data are generated that depend on the stimulation pattern. The predetermined volume segment is an internal organ or muscle tissue of the examination subject.

Method and magnetic resonance system for MR imaging of a predetermined volume segment of a living examination subject by stimulation of the examination subject

Magnetic resonance reconstruction includes motion compensation. Inverse-consistent non-rigid registration is used to determine motion between shots. The motion is incorporated into reconstruction. The incorporation compensates for the motion resulting from the period over which the MR data is acquired.

Motion compensated magnetic resonance reconstruction in real-time imaging

In a control method and a control unit for context-specific determination of at least one DESIRED perspective upon rendering of medical image data at a monitor, a graphical symbol is generated at a user interface dynamically and depending on an image status in order to detect a perspective control signal, and is used to control the rendering.

Control module and control method to determine perspective in the rendering of medical image data sets

A method and system for automated view planning for cardiac magnetic resonance imaging (MRI) acquisition is disclosed. The method and system automatically generate a full scan prescription using a single 3D MRI volume. The left ventricle (LV) is segmented in the 3D MRI volume. Cardiac landmarks are detected in the automatically prescribed slices. A full scan prescription, including a short axis stack and 2-chamber, 3-chamber, and 4-chamber views, is automatically generated based on cardiac anchors provided by the segmented left ventricle and the detected cardiac landmarks in the 3D MRI volume.

Method and system for automatic view planning for cardiac magnetic resonance imaging acquisition

A method and system for segmenting multiple organs in medical image data is disclosed. A plurality of landmarks of a plurality of organs are detected in a medical image using an integrated local and global context detector. A global posterior integrates evidence of a plurality of image patches to generate location predictions for the landmarks. For each landmark, a trained discriminative classifier for that landmark evaluates the location predictions for that landmark based on local context. A segmentation of each of the plurality of organs is then generated based on the detected landmarks.

Method and system for joint multi-organ segmentation in medical image data using local and global context

A method of deriving blood flow parameters from a moving three-dimensional (3D) model of a blood vessel includes determining a reference vascular cross-sectional plane through a location of a lumen in a moving 3D model of the blood vessel at one time within the model, determining a plurality of target vascular cross-sectional planes at multiple times via temporal tracking of the reference plane based on a displacement field, determining a plurality of contours based on an intersection of the target vascular cross-sectional planes with the moving 3D vessel model at multiple times within the model, and determining a blood flow parameter of the vessel from intersections of each contour of a given one of the times with a phase contrast magnetic resonance (PC-MRI) image of the blood vessel from the corresponding time.

Generation of moving vascular models and blood flow analysis from moving vascular models and phase contrast MRI

A method and system for retrospective image combination for free-breathing magnetic resonance (MR) images is disclose. A free-breathing cardiac MR image acquisition including a plurality of frames is received. A key frame is selected of the plurality of frames. A deformation field for each frame to register each frame with the key frame. A weight is determined for each pixel in each frame based on the deformation field for each frame under a minimum total deformation constraint. A combination image is then generated as a weighted average of the frames using the weight determined for each pixel in each frame.

Method and system for retrospective image combination under minimal total deformation constrain for free-breathing cardiac magnetic resonance imaging with motion correction

A method for symmetric and inverse-consistent registration of a pair of digital images includes calculating a first update of a forward transformation of a first digital image to a second digital image from a previous update of the forward transformation and a gradient of a cost function of the first and second digital images, calculating a first update of a backward transformation of the second digital image to the first digital image from an inverse of the first update of the forward transformation, calculating a second update of the backward transformation from first update of the backward transformation and the gradient of a cost function of the second and first digital images, and calculating a second update of the forward transformation from an inverse of the second update of the backward transformation.

Symmetric and inverse-consistent deformable registration

A system dynamically improves quality of medical images using at least one processing device including an image analyzer, a correction processor and a message generator. The image analyzer automatically parses and analyzes data representing an image of a particular anatomical feature of a patient acquired by a medical image acquisition device to identify defects in the image by examining the data representing the image for predetermined patterns associated with image defects. The correction processor uses a predetermined information map associating image defects with corresponding corrective image acquisition parameters to determine corrected image acquisition parameters for use in re-acquiring an image using the image acquisition device in response to an identified defect. The message generator generates a message for presentation to a user indicating an identified defect and suggesting use of the corrected image acquisition parameters for re-acquiring an image.

System for dynamically improving medical image acquisition quality

A method for cardiac segmentation in magnetic resonance (MR) cine data, includes providing a time series of 3D cardiac MR images acquired at a plurality of phases over at least one cardiac cycle, in which each 3D image includes a plurality of 2D slices, and a heart and blood pool has been detected in each image. Gray scales of each image are analyzed to compute histograms of the blood pool and myocardium. Non-rigid registration deformation fields are calculated to register a selected image slice with corresponding slices in each phase. Endocardium and epicardium gradients are calculated for one phase of the selected image slice. Contours for the endocardium and epicardium are computed from the gradients in the one phase, and the endocardium and epicardium contours are recovered in all phases of the selected image slice. The recovered endocardium and epicardium contours segment the heart in the selected image slice.

System and method for cardiac segmentation in MR-cine data using inverse consistent non-rigid registration

In a method for image data acquisition of a region of interest in a subject with a magnetic resonance device, wherein, to establish the field of view, a minimal geometric shape encompassing the subject to be acquired and/or the surface of the subject is determined automatically from previously acquired localizer exposures as aliasing information for each exposure, at least one slice plane is determined for the acquisition of the region, and the phase coding direction and/or the extent of the field of view in the phase coding direction is determined for every slice plane using the aliasing information.

Method for image data acquisition with a magnetic resonance device

A method and system for vessel enhancement and artifact reduction in a 3D time-of-flight (TOF) magnetic resonance (MR) angiography brain image. An intensity-based threshold is used to extract structures of interest in the brain image. Vessels are isolated in the structures of interest by filtering the structures based on a vesselness measure. The vessels are then enhanced by multiplying the filtered image by a coefficient map based on intensities of the original brain image. The scalp is detected in the enhanced image, and the scalp is removed from the enhanced image to generate a noise-reduce enhanced image.

Method and system for vessel enhancement and artifact reduction in TOF MR angiography of brain

In a method for representation of the heart in a magnetic resonance system at least one MR overview image of the heart is acquired. An image plane with a predetermined position relative to the magnetic resonance system is selected for this overview image. The acquired MR overview image is displayed and a number of marking points are established in the displayed overview image. Further image planes for representation of the heart are calculated using some of the established marking points. Further MR images are acquired in the calculated image planes.

Magnetic resonance system and method for cardiac imaging

Growing community of inventors

Erlangen, Germany

Jens Guehring