General Electric Company

Ge Medical Systems Global Technology Company, LLC

Other

University of Illinois

Leland Stanford Junior University

General Electric Corporation Gmbh

Ge Medical Technology Services, Inc.

Kevin Franklin King

Carl R Crawford

Dan Xu

Alexander Ganin

Christopher Judson Hardy

Richard Scott Hinks

Luca Marinelli

Jason Andrew Polzin

Elisabeth Angelos

Thomas L Toth

Graeme Colin McKinnon

Ek Tsoon Tan

Zhi-Pei Liang

Marion Irene Menzel

Matthew A Bernstein

Kevin Matthew Koch

Thomas K Foo

Kedar Bhalchandra Khare

Jonathan Immanuel Sperl

Xiaohang Zhou

Jiang Hsieh

Norbert Joseph Pelc

James Gordon McLean

Gary H Glover

Brian A Hargreaves

Paul Edgar Licato

Joseph K Maier

Jingfei Ma

Robert Marc Lebel

Anton Max Linz

Reed Frederick Busse

Bruce David Collick

Jian Zhang

Yiping Du

Jacob Wainer

Zachary Slavens

Daniel Robert Carson

Doug Scott

Yong Zhou

Cynthia Faye Maier

James M Kinsey

Albert H Lonn

William K Braymer

John Quarles

Jason M Geller

Beth E Slayman

Neville D Gai

Susan Haverstick

Larion Johnson

Patrick D Kosinski

Alex Krasa

Ilir Kumi

Douglas Laderman

Jonathan Magee

Alex Petrovsky

Katelyn Sweeney

Nickolas Thorsen

Olivia Van Amsterdam

Chris Williamson

Ethan Ziegler

Sharif Mohammad Shahnewaz Ferdous

Lisa C Angelos

Adam Azanow

Mirza Sohail Baig

William Coburn

Nicholas Exarchos

Hector Caraballo

Russell Forrest

Ford Grundberg

Roland Paquette

Kimya Harper

Systems and methods comprising an augmented reality display device to display a virtual anatomic display registered with a physical anatomic model. In certain embodiments, the virtual anatomic display can be registered with the physical anatomic model by user-selected registration points on the physical model.

Devices and methods for interactive augmented reality

Systems and methods for correcting magnetic resonance (MR) data are provided. One method includes receiving the MR data and correcting errors present in the MR data due to non-uniformities in magnetic field gradients used to generate the diffusion weighted MR signals. The method also includes correcting errors present in the MR data due to concomitant gradient fields present in the magnetic field gradients by using one or more gradient terms. At least one of the gradient terms is corrected based on the correction of errors present in the MR data due to the non-uniformities in the magnetic field gradients.

Magnetic resonance imaging data correction methods and systems

Systems and methods for generating a magnetic resonance (MR) image of a tissue are provided. A method includes acquiring MR raw data. The MR raw data corresponds to MR signals obtained at undersampled q-space locations for a plurality of q-space locations that is less than an entirety of the q-space locations and the MR signals at the q-space locations represent the three dimensional displacement distribution of the spins in the imaging voxel. The method also includes performing a joint image reconstruction technique on the MR raw data to exploit structural correlations in the MR signals to obtain a series of accelerated MR images and performing, for each image pixel in each accelerated MR image of the series of accelerated MR images, a compressed sensing reconstruction technique to exploit q-space signal sparsity to identify a plurality of diffusion maps.

Diffusion spectrum imaging systems and methods

A solar panel installation tool, with coarse and fine position adjustment. The tool fits on a mounting rail installed on a roof, and supports the solar panel along its bottom side. A panel support bracket on the tool is adjusted to align the solar panel with the roof edge. The tool can be removed after the solar panel is bolted into place on the rack.

Solar panel installation tool

The invention relates to remotely operated multi-component search robots for underwater search and rescue operations, and particularly suited for searches under ice.

Multi-component robot for below ice search and rescue

A computer is programmed to acquire calibration data from a calibration scan, the calibration data configured to characterize high order eddy current (HOEC) generated magnetic field error of an imaging system. The computer is also programmed to process the calibration data to generate a plurality of basis coefficients and a plurality of time constants and to calculate a plurality of basis correction coefficients based on the plurality of basis coefficients, the plurality of time constants, and gradient waveforms in a given pulse sequence. The computer is further programmed to execute a diffusion-weighted imaging scan that comprises application of a DW-EPI pulse sequence to acquire MR data from an imaging subject and reconstruction of an image based on the acquired MR data. The computer is also programmed to apply HOEC-generated magnetic field error correction during application of the DW-EPI pulse sequence configured to reduce HOEC-induced distortion in the reconstructed image.

System and method for prospective correction of high order eddy-current-induced distortion in diffusion-weighted echo planar imaging

A method of generating a magnetic resonance (MR) image of a tissue includes acquiring MR signals at undersampled q-space encoding locations for a plurality of q-space locations that is less than an entirety of the q-space locations sampled at the Nyquist rate, wherein the acquired signal at the q-space locations represents the three-dimensional displacement distribution of the spins in the imaging voxel, synthesizing the MR signal for the entirety of q-space encodings using a compressed sensing technique for a portion of q-space locations at which MR data was not acquired, combining the acquired MR signals at q-space encodings and the synthesized MR signals at q-space encodings to generate a set of MR signals at q-space encodings that are evenly distributed in q-space, using the set of MR signals at q-space encodings to generate a function that represents a displacement probability distribution function of the set of spins in the imaging voxel, and generating an image of the tissue based on at least a portion of the generated function. A system and computer readable medium are also described herein.

Method and apparatus for performing diffusion spectrum imaging

A magnetic resonance (MR) imaging method includes acquiring MR signals having phase and magnitude at q-space locations using a diffusion sensitizing pulse sequence performed on a tissue of interest, wherein the acquired signals each include a set of complex Fourier encodings representing a three-dimensional displacement distribution of the spins in a q-space location. The signals each include information relating to coherent motion and incoherent motion in the q-space location. The method also includes determining a contribution by coherent motion to the phase of the acquired MR signals; removing the phase contribution attributable to coherent motion from the acquired MR signals to produce a complex data set for each q-space location and an image of velocity components for each q-space location; and producing a three-dimensional velocity image from the image of the velocity components.

Complex reconstruction of Q-space for simultaneous detection of coherent and incoherent motion

A piano tablature includes tab keys indicating a new measure where the tab keys display a standard piano keyboard. Middle C on a piano keyboard is highlighted. A tab measure includes note indicators for a selected song. The first beat of a tab measure is indicated by the bottom horizontal line of the tab header and each horizontal line of the tab measure below the bottom horizontal line represents a new beat in the measure, the placement of the note indicator can be traced vertically to a tab header to a corresponding note. White keys are represented by placing a note indicator between 2 vertical lines in the tab measure and black keys are represented by placing a note indicator directly on a vertical line. A piano tab is read from top to bottom.

Piano tablature system and method

A signal processing method is provided. The signal processing method includes the steps of generating undersampled data corresponding to an object, determining a variable thresholding parameter based on a composition of the undersampled data, and iteratively determining thresholded coefficients to generate a plurality of coefficients by utilizing the undersampled data, a current solution and the variable thresholding parameter by updating the variable thresholding parameter and the current solution, and reconstructing a data signal using the plurality of coefficients.

System and method for processing data signals

A method for generating a magnetic resonance image includes acquiring a first k-space data set from each of a plurality of RF coils. The first k-space data set includes calibration data and randomly undersampled data. For each RF coil, a fully randomly sampled k-space data set is generated by removing a portion of the calibration data. A compressed sensing reconstruction technique is applied to the fully randomly sampled k-space data set to generate an aliased image, which is used to generate a uniformly undersampled k-space data set. A second k-space data set is generated by inserting the portion of the calibration data and a parallel imaging reconstruction technique is applied to the second k-space data set to synthesize unacquired data. The second k-space data set and the synthesized data are combined to generate a complete k-space data set for the RF coil.

System and method for generating a magnetic resonance image using compressed sensing and parallel imaging

A system and method is disclosed for eliminating localized fluctuation artifacts caused by fat signal contamination in MR images, the system includes a magnetic resonance imaging (MRI) system having a plurality of gradient coils positioned about a bore of a magnet, and an RF transceiver system and an RF switch controlled by a pulse module to transmit RF signals to an RF coil assembly to acquire MR images, and a computer programmed to apply a spectral-spatial fat saturation pulse, apply a slice selection gradient pulse, acquire imaging data of an imaging slice of interest, and generate an image.

System and method for reducing localized signal fluctuation

A signal processing method is presented. The method includes acquiring undersampled data corresponding to an object, initializing a first image solution and a second image solution, determining a linear combination solution based upon the first image solution and the second image solution, generating a plurality of selected coefficients by iteratively updating the first image solution, the second image solution and the linear combination solution and adaptively thresholding one or more transform coefficients utilizing the undersampled data, an updated first image solution, an updated second image solution and an updated linear combination solution, and reconstructing a data signal using the plurality of selected coefficients.

A method, system, and apparatus including a magnetic resonance imaging (MRI) apparatus that includes an MRI system having a plurality of gradient coils, a radio-frequency (RF) transceiver system, an RF switch controlled by a pulse module to transmit RF signals to an RF coil assembly, and a computer. The computer is programmed to implement a spin echo sequence to acquire magnetic resonance (MR) data, where the spin echo sequence includes an excitation RF pulse and at least one refocusing pulse per repetition time (TR) of the excitation pulse. The computer is also programmed to transmit at least two component RF pulses in parallel channels during implementation of the spin echo sequence to produce a first refocusing RF pulse and programmed to reconstruct an image from spin echo sequence image data.

Apparatus and method for parallel transmission of RF pulses in a spin echo sequence

A system and method for multi-spectral MR imaging near metal include a computer programmed to calculate an MR pulse sequence comprising a plurality of RF pulses configured to excite spins in an imaging object and comprising a plurality of volume selection gradients and determine a plurality of distinct offset frequency values. For each respective determined offset frequency value, the computer is programmed to execute the MR pulse sequence having a central transmit frequency and a central receive frequency of the MR pulse sequence set to the respective determined offset frequency value. The computer is also programmed to acquire a three-dimensional (3D) MR data set for each MR pulse sequence execution and generate a composite image based on data from each of the acquired 3D MR data sets.

System and method for multi-spectral MR imaging near metal

Growing community of inventors

Menomonee Falls, WI, United States of America

Kevin Franklin King