72 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
Deep Learning Techniques for Suppressing Artefacts In Magnetic Resonance Images
28 Dec 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: 12 Sep 23
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
Radio-frequency Coil Signal Chain for a Low-field Mri System
30 Nov 23
Methods and apparatus for reducing noise in RF signal chain circuitry for a low-field magnetic resonance imaging system are provided.
HADRIEN A. DYVORNE, Todd Rearick
Filed: 24 Apr 23
Utility
Flexible Radio Frequency Coil Apparatus and Methods for Magnetic Resonance Imaging
16 Nov 23
A radio frequency apparatus is described herein for facilitating imaging of a patient positioned within a magnetic resonance imaging system comprising a B0 magnet.
Gang Chen, Anne Michele Nelson
Filed: 14 Jul 23
Utility
Systems and Methods for Dynamically Extending Magnetic Resonance Imaging of a Subject
16 Nov 23
Systems and methods are provided herein for determining whether to extend scanning performed by a magnetic resonance imaging (MRI) system.
Laura Sacolick, Carole Lazarus, Rafael O'Halloran, Hadrien A. Dyvorne
Filed: 30 Jun 23
Utility
Methods and Apparatus for Magnetic Field Shimming
16 Nov 23
A method of producing a permanent magnet shim configured to improve a profile of a B0 magnetic field produced by a B0 magnet is provided.
Cedric Hugon, Michael Stephen Poole, Tyler S. Ralston
Filed: 11 Jul 23
Utility
B0 Magnet Methods and Apparatus for a Magnetic Resonance Imaging System
9 Nov 23
An apparatus for providing a B0 magnetic field for a magnetic resonance imaging system.
Michael Stephen Poole, Cedric Hugon, Christopher Thomas McNulty
Filed: 28 Jun 23
Utility
Radio Frequency Coil for Magnetic Resonance Imaging
9 Nov 23
A radio frequency (RF) coil apparatus is described herein for facilitating imaging of a patient positioned within a magnetic resonance imaging (MRI) system, the MRI system comprising a B0 magnet.
Eddy B. Boskamp, Michael Stephen Poole
Filed: 14 Jul 23
Utility
Systems and Methods for Magnetic Resonance Imaging of Infants
2 Nov 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: 13 Jan 23
Utility
Techniques for Dynamic Control of a Magnetic Resonance Imaging System
2 Nov 23
Techniques are described for controlling components of a Magnetic Resonance Imaging (MRI) system with a single controller, such as a Field Programmable Gate Array (FPGA), by dynamically instructing the controller to issue commands to the components using a processor coupled to the controller.
Laura Sacolick, Jonathan Lowthert, Jeremy Christopher Jordan, Hadrien A. Dyvorne
Filed: 3 Jul 23
Utility
Artefact Reduction In Magnetic Resonance Imaging
26 Oct 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: 12 Jun 23
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
Noise Suppression Methods and Apparatus
19 Oct 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: 24 Apr 23
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
Radio Frequency Coil Tuning Methods and Apparatus
12 Oct 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: 13 Jun 23
Utility
Electromagnetic Shielding for Magnetic Resonance Imaging Methods and Apparatus
12 Oct 23
According to some aspects, a portable magnetic resonance imaging system is provided, comprising a Bo magnet configured to produce a Bo 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: 15 Jun 23
Utility
Permanent Magnet Assembly for Magnetic Resonance Imaging with Non-ferromagnetic Frame
12 Oct 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: 12 Apr 23