39 patents
Utility
Correcting for hysteresis in magnetic resonance imaging
9 Jan 24
An apparatus for controlling at least one gradient coil of a magnetic resonance imaging (MRI) system.
Rafael O'Halloran, Cedric Hugon, Laura Sacolick, Hadrien A. Dyvorne
Filed: 15 Nov 19
Utility
Systems and methods for providing operating power to an magnetic resonance imaging (MRI) system
2 Jan 24
Systems and methods for operating a magnetic resonance imaging (MRI) system are provided.
Michael Twieg
Filed: 3 Sep 21
Utility
Systems and methods for performing magnetic resonance imaging with reduced operator interaction
19 Dec 23
Techniques are provided for imaging a subject.
Laura Sacolick, Rafael O'Halloran, Hadrien A. Dyvorne, Khan Mohammad Siddiqui, Michal Sofka, Prantik Kundu, Tianrui Luo
Filed: 4 Mar 22
Utility
Electromagnetic shielding for magnetic resonance imaging methods and apparatus
12 Dec 23
According to some aspects, a portable magnetic resonance imaging system is provided, comprising a B0 magnet configured to produce a B0 magnetic field for an imaging region of the magnetic resonance imaging system, a noise reduction system configured to detect and suppress at least some electromagnetic noise in an operating environment of the portable magnetic resonance imaging system, and electromagnetic shielding provided to attenuate at least some of the electromagnetic noise in the operating environment of the portable magnetic resonance imaging system, the electromagnetic shielding arranged to shield a fraction of the imaging region of the portable magnetic resonance imaging system.
Michael Stephen Poole, Cedric Hugon, Hadrien A. Dyvorne, Laura Sacolick, William J. Mileski, Jeremy Christopher Jordan, Alan B. Katze, Jr., Jonathan M. Rothberg, Todd Rearick, Christopher Thomas McNulty
Filed: 6 May 20
Utility
Opto-isolator circuitry for magnetic resonance imaging applications
24 Oct 23
The present disclosure provides techniques for using opto-isolator circuitry to control switching circuitry configured to be coupled to a radio-frequency (RF) coil of a magnetic resonance imaging (MRI) system.
Michael Twieg
Filed: 13 Dec 21
Utility
Deep learning techniques for suppressing artefacts in magnetic resonance images
17 Oct 23
Techniques for removing artefacts, such as RF interference and/or noise, from magnetic resonance data.
Carole Lazarus, Prantik Kundu, Sunli Tang, Seyed Sadegh Mohseni Salehi, Michal Sofka, Jo Schlemper, Hadrien A. Dyvorne, Rafael O'Halloran, Laura Sacolick, Michael Stephen Poole, Jonathan M. Rothberg
Filed: 15 Aug 19
Utility
B
15 Aug 23
An apparatus for providing a B0 magnetic field for a magnetic resonance imaging system.
Michael Stephen Poole, Cedric Hugon, Christopher Thomas McNulty
Filed: 24 Nov 21
Utility
Radio frequency coil tuning methods and apparatus
1 Aug 23
Some aspects comprise a tuning system configured to tune a radio frequency coil for use with a magnetic resonance imaging system comprising a tuning circuit including at least one tuning element configured to affect a frequency at which the radio frequency coil resonates, and a controller configured to set at least one value for the tuning element to cause the radio frequency coil to resonate at approximately a Larmor frequency of the magnetic resonance imaging system determined by the tuning system.
Todd Rearick, Jeremy Christopher Jordan, Gregory L. Charvat, Matthew Scot Rosen
Filed: 29 Mar 21
Utility
Artefact reduction in magnetic resonance imaging
1 Aug 23
Techniques of prospectively compensating for motion of a subject being imaged by an MRI system, the MRI system comprising a plurality of magnetics components including at least one gradient coil and at least one radio-frequency (RF) coil, the techniques comprising: obtaining first spatial frequency data and second spatial frequency data by operating the MRI system in accordance with a pulse sequence, wherein the pulse sequence is associated with a sampling path that includes at least two non-contiguous portions each for sampling a central region of k-space; determining a transformation using a first image obtained using the first spatial frequency data and a second image obtained using the second spatial frequency data; correcting the pulse sequence using the determined transformation to obtain a corrected pulse sequence; and obtaining additional spatial frequency data in accordance with the corrected pulse sequence.
Carole Lazarus, Rafael O'Halloran, Hadrien A. Dyvorne
Filed: 23 Oct 20
Utility
Eddy current mitigation systems and methods
11 Jul 23
Techniques for compensating for presence of eddy currents during the operation of a magnetic resonance imaging (MRI) system in accordance with a pulse sequence, the pulse sequence comprising a gradient waveform associated with a target gradient field.
Hadrien A. Dyvorne, Cedric Hugon, Rafael O'Halloran, Laura Sacolick
Filed: 14 Aug 20
Utility
Systems, devices, and methods for magnetic resonance imaging of infants
27 Jun 23
Provided herein are systems, devices, and methods to facilitate imaging an infant using a magnetic resonance imaging (MRI) device.
Gang Chen, Anne Michele Nelson, Jacob Coumans, Eddy B. Boskamp
Filed: 1 May 20
Utility
Radio-frequency coil signal chain for a low-field MRI system
30 May 23
A radio-frequency (RF) coil for use in a low-field magnetic resonance imaging system and methods of making the same are provided.
Hadrien A. Dyvorne, Todd Rearick
Filed: 23 Feb 21
Utility
Noise suppression methods and apparatus
30 May 23
According to some aspects, a method of suppressing noise in an environment of a magnetic resonance imaging system is provided.
Todd Rearick, Gregory L. Charvat, Matthew Scot Rosen, Jonathan M. Rothberg
Filed: 2 Dec 21
Utility
Permanent magnet assembly for magnetic resonance imaging with non-ferromagnetic frame
23 May 23
An assembly for providing a B0 magnetic field for a magnetic resonance imaging (MRI) system, the assembly comprising: a plurality of rods extending along a common longitudinal direction and positioned to form a bore extending along the common longitudinal direction, the plurality of rods including a first rod, the first rod comprising: ferromagnetic segments, each having a net magnetization in a plane that is substantially perpendicular to the common longitudinal direction; and non-ferromagnetic segments.
Cedric Hugon, Michael Stephen Poole
Filed: 9 Dec 20
Utility
Deployable guard for portable magnetic resonance imaging devices
28 Mar 23
According to some aspects, an apparatus is provided comprising a deployable guard device, configured to be coupled to a portable medical imaging device, the deployable guard device further configured to, when deployed, inhibit encroachment within a physical boundary with respect to the portable medical imaging device.
Christopher Thomas McNulty, Michael Stephen Poole
Filed: 15 Dec 21
Utility
Methods and apparatus for patient positioning in magnetic resonance imaging
21 Mar 23
According to some aspects, a magnetic resonance imaging system capable of imaging a patient is provided.
Anne Michele Nelson, Christopher Thomas McNulty, Jeremy Christopher Jordan, Michael Stephen Poole, Gang Chen
Filed: 15 Dec 21
Utility
Artefact reduction in magnetic resonance imaging
7 Feb 23
Techniques for compensating magnetic resonance imaging (MRI) data for artefacts caused by motion of a subject being imaged.
Carole Lazarus
Filed: 23 Oct 20
Utility
Deep learning techniques for generating magnetic resonance images from spatial frequency data
31 Jan 23
Techniques for generating magnetic resonance (MR) images of a subject from MR data obtained by a magnetic resonance imaging (MRI) system, the techniques include: obtaining input MR spatial frequency data obtained by imaging the subject using the MRI system; generating an MR image of the subject from the input MR spatial frequency data using a neural network model comprising: a pre-reconstruction neural network configured to process the input MR spatial frequency data; a reconstruction neural network configured to generate at least one initial image of the subject from output of the pre-reconstruction neural network; and a post-reconstruction neural network configured to generate the MR image of the subject from the at least one initial image of the subject.
Jo Schlemper, Seyed Sadegh Mohseni Salehi, Michal Sofka, Prantik Kundu, Carole Lazarus, Hadrien A. Dyvorne, Rafael O'Halloran, Laura Sacolick
Filed: 12 Mar 20
Utility
Systems and methods for low-field fast spin echo imaging
24 Jan 23
A magnetic resonance imaging (MRI) system and method for acquiring magnetic resonance (MR) images using a pulse sequence implementing driven equilibrium and quadratic phase cycling techniques is provided.
Hadrien A. Dyvorne, Laura Sacolick, Rafael O'Halloran, Carole Lazarus
Filed: 28 May 21
Utility
Systems and methods for magnetic resonance imaging of infants
17 Jan 23
According to some aspects, a system configured to facilitate imaging an infant using a magnetic resonance imaging (MRI) device is provided herein.
Jacobus Coumans, Christopher Thomas McNulty
Filed: 11 Mar 20