Patents Examined by Louis Arana
  • Patent number: 10254372
    Abstract: A method is provided for recording, with a magnetic resonance device, magnetic resonance data of a target region of a patient moved by their breathing. An optical camera arranged in a bore of the magnetic resonance device directed onto the patient is used. Image data of the patient recorded by the camera before and/or during the recording of the magnetic resonance data is evaluated to form breathing information describing the breathing state and the breathing information is used for triggering and/or movement correction and/or assessment of a process in which a patient holds their breath.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: April 9, 2019
    Assignee: Siemens Healthcare GmbH
    Inventors: Andreas Greiser, Maria Kröll, Dominik Paul, Steffen Schröter, Jens Thöne
  • Patent number: 10254362
    Abstract: A method for improving image quality in a magnetic resonance imaging system, the method includes rapidly modulating an electrical current in a matrix shim coil of the magnetic resonance imaging system to compensate high order eddy currents in the system.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: April 9, 2019
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Jean-Baptiste Mathieu, Derek Allan Seeber, Seung-Kyun Lee
  • Patent number: 10241165
    Abstract: In various embodiments of the invention, inductive coupling can be to a secondary coil rather than a primary coil in order to optimize the topology of the NMR probe. In addition, by coupling to a secondary coil using a detection coil located below the lower insulator the RF homogeneity and signal to noise can be improved together with the NMR probe topology. By effecting inductive coupling to an inductor in a multiple resonance circuit, rather than to the sample inductor parameters associated with the NMR, probe construction can be arranged to increase RF homogeneity and signal to noise, while reducing space utilization constraints. In various embodiments of the invention, the primary mode in a secondary coil can be split into two modes with a resonator with inductive coupling to the secondary coil.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: March 26, 2019
    Assignee: JEOL LTD
    Inventor: Albert Zens
  • Patent number: 10241170
    Abstract: A system and method of acquiring an image at a magnetic resonance imaging (MRI) system is provided. Accordingly, an analog signal based on a pulse sequence and a first gain is obtained. The analog signal is converted into a digitized signal. A potential quantization error is detected in the digitized signal based on a boundary. When the detection is affirmative, a replacement analog signal based on the pulse sequence is received. At least one portion of the replacement analog signal can be based on an adjusted gain. The adjusted gain is a factor of the first gain. The replacement analog signal is digitized into a replacement digitized signal. At least one portion of the replacement digitized signal corresponding to the at least one portion of the replacement analog signal is adjusted based on a reversal of the factor.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: March 26, 2019
    Assignee: SYNAPTIVE MEDICAL (BARBADOS) Inc.
    Inventors: Cameron Anthony Piron, Alexander Gyles Panther, Chad Tyler Harris, Stephen B. E. McFadyen
  • Patent number: 10209389
    Abstract: A well-logging method for a geological formation having a borehole therein may include collecting a plurality of nuclear magnetic resonance (NMR) snapshots from the borehole indicative of changes in the geological formation and defining NMR data. The method may further include identifying a plurality of fluids within the geological formation based upon the NMR data, determining respective NMR signatures for the identified fluids based upon the NMR data, determining apparent volumes for the identified fluids based upon the NMR signatures, and determining adjusted volumes for the identified fluids based upon the apparent volumes.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: February 19, 2019
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Kais B. M. Gzara, Vikas Jain
  • Patent number: 10203390
    Abstract: A magnetic resonance imaging apparatus according to an embodiment includes a sequence control unit, an image generating unit, and a deriving unit. The sequence control unit executes first imaging scan for acquiring data of a range including a target internal organ and second imaging scan for acquiring data for a diagnostic image by controlling execution of a pulse sequence. The image generating unit generates an image by using data acquired by the first imaging scan. The deriving unit derives an imaging scan area in which data for the diagnostic image are acquired in the second imaging scan and a related area set associated with the imaging scan area in the second imaging scan, based on image processing using the image.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: February 12, 2019
    Assignee: TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventors: Shigehide Kuhara, Shuhei Nitta, Taichiro Shiodera, Tomoyuki Takeguchi
  • Patent number: 10197653
    Abstract: An NMR probe head with an MAS stator (1) supplied with microwave radiation from a microwave guide (9) through an opening in a coil block (2) has a microwave lens (6) and a microwave mirror (8a) on an inner side of the MAS stator. The MAS rotor (3) is surrounded by a solenoid RF coil (5) and the microwave lens is arranged and embodied in the opening of the coil block on the side facing a sample volume (4) such that the cylinder axis of the MAS rotor lies in the focus of the microwave lens. The microwave mirror is arranged on, or in, the inner wall of the MAS stator that lies opposite the microwave guide and has a cylindrical and concave structure, such that the microwave mirror focuses the microwave radiation incident from the sample volume onto the central axis of the MAS rotor.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: February 5, 2019
    Assignee: BRUKER BIOSPIN GMBH
    Inventors: Armin Purea, Arndt Von Bieren
  • Patent number: 10197515
    Abstract: A light-trapping geometry enhances the sensitivity of strain, temperature, and/or electromagnetic field measurements using nitrogen vacancies in bulk diamond, which have exterior dimensions on the order of millimeters. In an example light-trapping geometry, a laser beam enters the bulk diamond, which may be at room temperature, through a facet or notch. The beam propagates along a path inside the bulk diamond that includes many total internal reflections off the diamond's surfaces. The NVs inside the bulk diamonds absorb the beam as it propagates. Photodetectors measure the transmitted beam or fluorescence emitted by the NVs. The resulting transmission or emission spectrum represents the NVs' quantum mechanical states, which in turn vary with temperature, magnetic field strength, electric field strength, strain/pressure, etc.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: February 5, 2019
    Assignee: Massachusetts Institute of Technology
    Inventors: Hannah A. Clevenson, Dirk Robert Englund
  • Patent number: 10185003
    Abstract: A device includes a component operable at a temperature in a range of 3.5 to 6 Kelvin. The device further includes a thermal reflective sheet comprising a plurality of layers, wound around at least a portion of the component. The device also includes a coupling device for coupling the thermal reflective sheet to at least the portion of the component.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: January 22, 2019
    Assignee: GENERAL ELECTRIC COMPANY
    Inventor: Ernst Wolfgang Stautner
  • Patent number: 10184996
    Abstract: The invention provides for a subject support assembly (125) for a magnetic resonance imaging system (100, 200, 300, 400, 500). The subject support is operable for supporting a subject (118) within an imaging zone (108) of a magnet (104) of the magnetic resonance imaging system. The subject support is operable for supporting at least one radio frequency amplifier (124, 124?, 124?) outside of the imaging zone. The subject support is operable for supplying DC electrical power to the at least one radio frequency amplifier.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: January 22, 2019
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Cecilia Possanzini, Christoph Leussler
  • Patent number: 10185012
    Abstract: A system and method for magnetic resonance imaging is provided. The method includes acquiring a plurality of echo signals relating to a region of interest of a subject at a number of echo times; generating a plurality of phase images based on the plurality of echo signals; generating an unwrapped phase map by performing a phase unwrapping correction to the plurality of phase images; generating a virtual phase map based on the unwrapped phase map; determining a phase mask based on the virtual phase map; obtaining magnitude information of the plurality of echo signals; and generating a susceptibility weighted image based on the phase mask and the magnitude information.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: January 22, 2019
    Assignee: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
    Inventors: Yongquan Ye, Jinguang Zong
  • Patent number: 10185011
    Abstract: An electric properties tomography method for reconstructing a spatial distribution of electric conductivity (?) from magnetic resonance image data representative of a magnetic resonance image of at least a portion of a subject of interest (20), the spatial distribution covering at least a portion of the area of the magnetic resonance image, and the method comprising following steps:—segmenting the magnetic resonance image,—extrapolating acquired phase values, —replacing acquired phase values by the extrapolated phase values,—transforming into the frequency domain,—multiplying a frequency domain-transformed numerical second derivative by the acquired phase values and the frequency domain-transformed numerical second derivative by the extrapolated phase values, respectively, and—transforming the result of the multiplying into the spatial domain. Also covered are a corresponding MRI system and a software module.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: January 22, 2019
    Assignee: Koninklijke Philips N.V.
    Inventors: Christian Stehning, Ulrich Katscher, Thomas Heiko Stehle
  • Patent number: 10180470
    Abstract: Magnetic resonance imaging (MRI) systems and methods to effect improved and more efficient determination of the specific absorption rate (SAR) are described. The SAR is calculated based upon a derived relationship between a body surface area (BSA) and a portion of the total radio frequency (RF) energy delivered to RF transmit coil that is deposited in the imaging subject, and the scanning is controlled in accordance with the calculated SAR.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: January 15, 2019
    Assignee: TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventor: Xin Chen
  • Patent number: 10180472
    Abstract: A method of configuring a conducting grid of elements interconnected at intersecting nodes by switches is described.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: January 15, 2019
    Assignee: SYNAPTIVE MEDICAL (BARBADOS) Inc.
    Inventors: Chad Tyler Harris, Alexander Gyles Panther, Stephen B. E. McFadyen
  • Patent number: 10156622
    Abstract: In a method, magnetic resonance apparatus, and pulse optimization computer for determining a pulse sequence for radial sampling of k-space in magnetic resonance imaging, the amplitudes and the increases with respect to time of readout gradients and phase gradients for individual sections of k-space are determined depending on an orientation of the respective section in k-space and depending on global maximum values of the amplitudes and the increases of the gradients on the physical axes.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: December 18, 2018
    Assignee: Siemens Healthcare GmbH
    Inventors: David Grodzki, Thorsten Speckner
  • Patent number: 10156620
    Abstract: The present invention relates to a magnetic field adjustment system for use in a magnetic resonance imaging (MRI) system and a respective method. The magnetic field adjustment system comprises a first magnetic field generating assembly and an additional assembly. Wherein the first magnetic field generating assembly is used for generating a first magnetic field required by the MRI; and the additional assembly, including a switch and a current branch line, is used for cooperating with the first magnetic field generating assembly to generate a second magnetic field required by the MRI.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: December 18, 2018
    Assignee: GE MEDICAL SYSTEMS GLOBAL TECHNOLOGY COMPANY, LLC
    Inventors: Timothy John Havens, Weijun Shen, Zhenyu Zhang
  • Patent number: 10151816
    Abstract: A method of designing a refocusing pulse or pulse train for Magnetic Resonance Imaging comprises the steps of: a) determining a phase-free performance criterion representative of a proximity between a rotation of nuclear spins induced by the pulse and a target operator, summed or averaged over one or more voxels of an imaging region of interest; and b) adjusting a plurality of control parameters of the pulse to maximize the phase-free performance criterion; wherein each target operator is chosen so the phase-free performance criterion takes a maximum value when the nuclear spins within all voxels undergo a rotation of a same angle ? around a rotation axis lying in a plane perpendicular to a magnetization field B0, called a transverse plane, with an arbitrary orientation; wherein the angle ? is different from M? radians, with integer M, preferably with ?<? radians and even preferably with ??0.9·? radians.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: December 11, 2018
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Aurélien Massire, Nicolas Boulant
  • Patent number: 10151197
    Abstract: A method for analyzing a geological formation having at least one hydrocarbon therein may include determining a total organic carbon mass over a depth range of the geological formation, and determining a mass fraction of the at least one hydrocarbon over the depth range of the geological formation based upon the total organic carbon mass. The method may further include determining a volume of the at least one hydrocarbon over the depth range of the geological formation, and determining a density of the at least one hydrocarbon over the depth range of the geological formation based upon the mass fraction and the volume of the at least one hydrocarbon.
    Type: Grant
    Filed: July 7, 2014
    Date of Patent: December 11, 2018
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Salman Khalid, Robert Allen Badry, Paul Ryan Craddock, Kenneth Faurschou, Andrew E. Pomerantz, Manuel Aboud
  • Patent number: 10151815
    Abstract: A magnetic resonance imaging system (78) includes a magnetic resonance imaging device (80), one or more processors (104), and a display (106). The magnetic resonance imaging device (80) includes a magnet (82), gradient coils (88), and one or more radio frequency coils (92). The magnet (82) generates a Bo field. The gradient coils (88) apply gradient fields to the Bo field. The one or more radio frequency coils (92) generate a radio frequency pulse to excite magnetic resonance and measure generated gradient echoes. The one or more processors (104) are configured to activate (116) the one or more radio frequency coils (92) to generate a series of radio frequency pulses spaced by repetition times and to induce magnetic resonance.
    Type: Grant
    Filed: May 21, 2013
    Date of Patent: December 11, 2018
    Assignee: KONNINKLIJKE PHILIPS N.V.
    Inventors: Stefan E. Fischer, Craig Kenneth Jones, Melanie Suzanne Kotys
  • Patent number: 10145922
    Abstract: In some aspects, a method of operating a magnetic resonance imaging system comprising a B0 magnet and at least one thermal management component configured to transfer heat away from the B0 magnet during operation is provided. The method comprises providing operating power to the B0 magnet, monitoring a temperature of the B0 magnet to determine a current temperature of the B0 magnet, and operating the at least one thermal management component at less than operational capacity in response to an occurrence of at least one event.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: December 4, 2018
    Assignee: Hyperfine Research, Inc.
    Inventors: Jonathan M. Rothberg, Jeremy Christopher Jordan, Michael Stephen Poole, Laura Sacolick, Todd Rearick, Gregory L. Charvat