General Electric Company

Leland Stanford Junior University

Garry Evan Gold

Denny Wingchung Lau

Steven P Roehm

Vijaykalyan Yeluri

Robert John Herfkens

Prakash Mahesh

Brian A Hargreaves

Christopher Allen Beaulieu

Sandip Biswal

John Mark Pauly

Scott Brian Reeder

David Seungwon Paik

Perry S Frederick

Kim Butts Pauly

Yaseen Samara

Raghav Raman

Christopher Frederick Beaulieu

Wenmiao Lu

Frank Owen

Seungbum Koo

Richard Allen Barth

A method for musculoskeletal tissue segmentation used in magnetic resonance imaging (MRI) is provided. MRI image data is collected using at least two different contrast mechanisms. Voxel values from data from each contrast mechanism are used as elements of a feature vector. The feature vector is compared with classification boundaries to classify musculoskeletal tissue type of the voxel. The previous two steps are repeated for a plurality of voxels. An image is generated from the classified musculoskeletal tissue types for the plurality of voxels to provide a musculoskeletal segmentation image.

Automatic segmentation of articular cartilage from MRI

Certain embodiments of the present invention provide methods and systems for synchronizing a view of a patient image with an atlas image. Certain embodiments provide a method for synchronizing a patient image with an atlas image. The method includes retrieving an image atlas including at least one atlas image, registering an atlas image to a patient image and synchronizing a view of the atlas image to a view of the patient image. In certain embodiments, the method further includes registering a plurality of atlas images to a plurality of patient images. In certain embodiments, the step of synchronizing further includes synchronizing at least one of orientation, zoom level, window level and pan of the atlas image to the patient image.

Systems and methods for synchronized image viewing with an image atlas

A method for 3D magnetic resonance imaging (MRI) with slice-direction distortion correction is provided. One or more selective cross-sections with a thickness along a first axis is excited using a RF pulse with a bandwidth, wherein a selective cross-section is either a selective slice or selective slab. A refocusing pulse is applied to form a spin echo. One or more 2D encoded image signals are acquired with readout along a second axis and phase encoding along a third axis. Slice-direction distortion is corrected by resolving the position by resolving the frequency offset.

Distortion-free magnetic resonance imaging near metallic implants

Certain embodiments of the present invention provide a system and method for image registration and display of relevant information. The method includes identifying one or more anatomical parts in an acquired image, mapping the acquired image to a reference image based on the one or more anatomical parts, storing anatomy information in relation to the acquired image, and displaying the acquired image based on the anatomy information. The method may also include controlling the displaying of the acquired image based on a voice command related to the anatomy information. Anatomy information may be displayed with the acquired image. Anatomy information may include clinical information, reference information, disease process information, a related image, and/or drug interaction information, for example. The acquired image may be displayed according to a display setting, such as a window level setting and/or other display setting, based on the anatomy information.

System and method for anatomy labeling on a PACS

The acquisition of multiple images at slightly different time shifts from the spin echo (or from TE=0 for gradient echo sequences), allows the separation of on-resonance spins from off-resonance spins by encoding this information in the received signal. The excitation pulse can be a standard broadband excitation that will excite all spins. The separation of on- and off-resonance spins is then performed on the received signal. The polar and equatorial lobes of a magnetic particle such as SPIO produce signals from excited water molecules near the particle which are frequency offset above and below the frequency of signals from water molecules unaffected by the particle.

Positive contrast MRI using positive and negative field inhomogeneity

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Stanford, CA, United States of America

Garry Evan Gold