Magnetic Resonance Imaging Or Spectroscopy Patents (Class 600/410)
  • Patent number: 11029379
    Abstract: A bridge member containing MR responsive material is provided in an open space between body parts to establish a correspondence between the body parts. The MR responsive material generates magnetic resonance signals in response the RF excitation, so that between the separate body parts via the bridge member magnetic resonance signal are obtained from positions between which there is at most a limited spatial variation of the main magnetic field, so that phase ambiguities between the signals from these positions are avoided. Thus, chemical shift separation, notably water-fat separation though a region-of-interest containing several (both) body parts may rely on a smoothness condition imposed on the spatial distribution of the main magnetic field. This avoids artefacts, such as water-fat swaps when separating water and fat contributions in the reconstructed magnetic resonance image.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: June 8, 2021
    Assignee: Koninklijke Philips N.V.
    Inventor: Elwin De Weerdt
  • Patent number: 11026606
    Abstract: Methods for data acquisition and processing of magnetic resonance (MR) imaging to obtain the oxygen saturation (O2sat) of blood using a relationship between transverse relaxation time (T2) of blood and oxygen saturation. The method includes obtaining multiple images at various T2 preparation times. Next, non-linear curve fitting may be used to solve for arterial or venous O2sat. The disclosure provides a calibration-free method for accurate quantitative assessment of blood in the heart and deep vessels, even in locations having limited accessibility with other diagnostic techniques.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: June 8, 2021
    Inventors: Orlando P. Simonetti, Rizwan Ahmad, Lee C. Potter, Juliet Jaison Varghese
  • Patent number: 11024031
    Abstract: A diagnostic system, method, and a computer-readable storage medium for determining a severity of a gastric condition, such as gastric cancer, in a subject are disclosed. The diagnostic system includes a processor that can obtain various images of a stomach of the subject including wavelength images and generate difference images from the wavelength images. The processor can compare the subject images with reference images representative of different severity levels of gastric cancer, or can input the subject images into a learned model trained using the reference images stored in the database to extract a feature pattern corresponding to a severity of gastric cancer to diagnose the subject as having a particular severity level of gastric cancer.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: June 1, 2021
    Assignee: OLYMPUS CORPORATION
    Inventors: Hirokazu Nozaki, Wataru Hashimoto, Takashi Suzuki, Mitsunori Kubo, Yusuke Kuwa, Yuji Sakamoto, Mariko Otagiri, Naoki Yoshida, Yoji Watanabe
  • Patent number: 11013561
    Abstract: A system for navigating a medical device is provided. In one embodiment, a magnetic field generator assembly generates a magnetic field. Position sensors on the medical device, on an imaging system and on the body generate signals indicative of the positions within the magnetic field. The generator assembly and reference sensors are arranged such that a correlation exists between them and the positions of the body and of a radiation emitter and a radiation detector of the imaging system. An electronic control unit (ECU) determines, responsive to signals generated by the sensors, a position of the medical device, a position of one of the radiation emitter and detector and a distance between the emitter and detector. Using this information, the ECU can, for example, register images from the imaging system in a coordinate system and superimpose an image of the device on the image from the imaging system.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: May 25, 2021
    Assignee: St. Jude Medical International Holding S.à r.l.
    Inventors: Uzi Eichler, Alon Izmirli, Yuval Vaknin, Adi Raveh
  • Patent number: 11015990
    Abstract: Embodiments of the present invention provide robust capacitive grip sensors that may be used in a variety of applications, including single-handed and double-handed grips, such as but not limited to barbells. Apparatus as disclosed herein and efficiently measure the presence of a human grip without requiring deformation of a gripped surface area.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: May 25, 2021
    Inventor: Bradley Davis
  • Patent number: 11006853
    Abstract: A method uses patches fixed to a surface of a body, the patches including respective electrodes in contact with the surface, and at least one of the patches configured to output a signal in response to a magnetic field applied to the body. Initially, the signal is processed to compute first magnetic locations and first electrical locations of the at least one of the patches. Subsequently, the signal is processed to compute second magnetic locations and second electrical locations of the at least one of the patches. A first relation is computed between the first magnetic and the first electrical locations, a second relation is computed between the second magnetic and the second electrical locations, and upon detecting a difference between the second and the first relations, a magnetic location correction is computed and then applied to track a position of a magnetic sensor inside the body.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: May 18, 2021
    Assignee: BIOSENSE WEBSTER (ISRAEL) LTD.
    Inventors: Doron Moshe Ludwin, Eitan Peri, Eliahu Zino, Meir Bar-Tal, Shaul Haim Raz
  • Patent number: 11002677
    Abstract: An apparatus for detecting material within a sample includes a light emitting unit for directing at least one light beam through the sample. The at least one light beam has a unique signature combination associated therewith responsive to passing through the sample. A Raman spectroscopic unit receives the at least one light beam that has passed through the sample and performs a Raman spectroscopic analysis to detect a first signature associated with the sample. An infrared spectroscopic unit receives the at least one light beam that has passed through the sample and performs an infrared spectroscopic analysis to detect a second signature associated with the sample. A database includes a plurality of unique combinations of the first signature and the second signature. Each of the plurality of unique combinations of the first signature and the second signature are associated with a particular material.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: May 11, 2021
    Assignee: NXGEN PARTNERS IP, LLC
    Inventor: Solyman Ashrafi
  • Patent number: 11000342
    Abstract: Hearing protection combined with head motion tracking for magnetic resonance (MR) procedures is provided. Trackable earplugs include an MR-visible sample combined with a passive resonant circuit. The trackable earplugs act as wireless markers for the MR system. A third wireless MR marker can be disposed on the forehead of the subject to facilitate motion tracking in six degrees of freedom (i.e., 3 rotations, 3 translations). Preferably, the coordinate system for motion tracking is rotated relative to standard MR coordinates to ensure distinct tracking peaks from the two trackable earplugs.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: May 11, 2021
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Roland Bammer, Julian Maclaren, Murat Aksoy
  • Patent number: 11002815
    Abstract: A method for reducing N/2 ghost or Nyquist ghost in magnetic resonance (MR) images is provided The method includes acquiring k-space dataset for an object using an echo planar imaging (EPI) sequence, dividing the k-space dataset into first partial k-space subset data related to positive echoes and second partial k-space subset data related to negative echoes, obtaining third partial k-space subset data that is N/2 or Nyquist ghost-free subset data, respectively registering the first partial k-space subset data and the second partial k-space subset data to a first portion of the third partial k-space subset data corresponding to positive echoes and a second portion of the third partial k-space subset data corresponding to negative echoes, combining the registered first partial k-space subset data and the registered second partial k-space subset data to form full k-space dataset, and reconstructing an image for the object based on the full k-space dataset.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: May 11, 2021
    Assignee: UNIVERSITY OF CINCINNATI
    Inventor: Jinghua Wang
  • Patent number: 10993678
    Abstract: A system for providing visual three dimensional assistance to a user during a medical procedure involving a soft organ. The system and method provide visual assistance to a user during a medical procedure involving a soft organ. The system and method utilize a processor for generating an image of the soft organ, a surgical instrument tracker for tracking a surgical instrument during the medical procedure, and a display in communication with the processor and the surgical instrument tracker for visually displaying in three dimensions, the image of the soft organ and the surgical instrument in relation to the soft organ.
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: May 4, 2021
    Assignee: EDDA TECHNOLOGY MEDICAL SOLUTIONS (SUZHOU) LTD.
    Inventors: Cheng-Chung Liang, Li Fan, Jian-Zhong Qian, Xiaolan Zeng, Xin Dou, Changbo Yang, Guo-Qing Wei
  • Patent number: 10991099
    Abstract: Disclosed is a method for measuring a representative value of a duct in vivo, the method including: selecting, by selection unit, at least one duct and sampling measurement sites in each duct; measuring, by creation unit, at least one real cross-section image being sampled to obtain measurement values and creating a measurement cross-section image; in comparing, by comparison-decision unit, the measurement cross-section image with the real cross-section image and evaluating validity of measurement values whether to accept the measurement values as data; and computing, by computation unit, a representative value out of the measurement values accepted as data.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: April 27, 2021
    Assignee: CORELINE SOFT CO., LTD.
    Inventors: Hyungi Seo, Donghoon Yu, Jaeyoun Yi, Joon Beom Seo, Nam Kug Kim
  • Patent number: 10989774
    Abstract: The present disclosure provides a vertically retractable magnet field assembly for a Magnetic Imaging Resonance (MRI) system. The assembly can move from an upward raised position to a downward retracted position, and vice versa. The assembly includes a magnet configured with a bore for imaging a body portion of a subject. The bore defines an inner surface of the magnet and extends along a longitudinal axis of the magnet. The magnet includes at least one flux generating element disposed within the magnet and oriented such that each of the at least one flux generating element surrounds the bore. Each of the at least one flux generating element is configured to generate a magnetic field for magnetizing the body portion positioned within the bore to generate a visual representation of an anatomy of the body portion.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: April 27, 2021
    Assignee: Sigwa Company, LLC
    Inventor: Fengling Zhang
  • Patent number: 10986987
    Abstract: A processor device and an endoscope system capable of calculating an optimal index value in accordance with a diagnosis purpose is provided. A processor device includes an image acquisition unit, a diagnosis purpose acquisition unit, an index value storage unit, an index value selection unit, and an index value calculation unit. The image acquisition unit acquires an endoscope image obtained by an endoscope image-capturing an observation object. The diagnosis purpose acquisition unit acquires a diagnosis purpose. The index value storage unit stores correspondence between the diagnosis purpose and a plurality of index values relating to a structure of the observation object. The index value selection unit refers to the index value storage unit and selects the index value that is used for the acquired diagnosis purpose. The index value calculation unit uses the endoscope image and calculates the selected index value.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: April 27, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Tatsuya Aoyama, Hiroaki Yamamoto
  • Patent number: 10984241
    Abstract: A medical image diagnosis apparatus according to an embodiment includes a storage circuitry and processing circuitry. The storage circuitry is configured to store therein workflow information indicating a plurality of procedures related to a preparation for an imaging process. The processing circuitry is configured to analyze an image obtained by a camera. The processing circuitry is configured to identify which of the plurality of procedures has been performed on the basis of the workflow information and a result of the analysis performed on the image and to cause an informing device to provide information about one or more of the procedures corresponding to a result of the identifying.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: April 20, 2021
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Miyuki Ota, Mitsuo Takagi, Sadanori Tomiha, Satoshi Imai, Masahiro Fukushima, Manabu Ishii, Shinji Mitsui
  • Patent number: 10976396
    Abstract: Described here are systems and methods for evaluating the extent of brain-skull tethering, which may also be referred to as loss of trabecular reserve, in subjects using magnetic resonance elastography (“MRE”). The present disclosure describes a method for assessing progressive damage to arachnoid space (“SAS”) trabeculae. The method generally includes measuring the relative movement between the brain and the skull using MRE. As one example, an MRE-based method named slip interface imaging (“SII”) can be implemented. By measuring trabecular reserve in subjects who have a history of prior head trauma, the susceptibility of a given subject to future injury can be assessed.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: April 13, 2021
    Assignee: Mayo Foundation for Medical Education and Research
    Inventors: Ziying Yin, Richard Ehman, Yi Sui, John Huston, III, Meng Yin
  • Patent number: 10962615
    Abstract: A magnetic resonance device is disclosed including a patient receiving zone, at least one diffusion gradient coil, at least one magnet for generating a basic magnetic field, and a plurality of gradient coils for generating gradient fields overlaying the basic magnetic field. The basic magnetic field extends substantially along a first direction in the patient receiving zone and a first gradient of a first gradient field runs in the first direction and at least one further gradient of a further gradient field runs in a further direction orthogonal to the first direction. The diffusion gradient coil has at least one conductor loop running in one plane or a plurality of conductor loops each running in parallel planes.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: March 30, 2021
    Assignee: Siemens Healthcare GmbH
    Inventor: Peter Dietz
  • Patent number: 10962617
    Abstract: Methods for fast magnetic resonance imaging (“MRI”) using a combination of outer volume suppression (“OVS”) and accelerated imaging, which may include simultaneous multislice (“SMS”) imaging, data acquisitions amenable to compressed sensing reconstructions, or combinations thereof. The methods described here do not introduce fold-over artifacts that are otherwise common to reduced field-of-view (“FOV”) techniques.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: March 30, 2021
    Assignee: Regents of the University of Minnesota
    Inventors: Sebastian Weingartner, Steen Moeller, Mehmet Akcakaya
  • Patent number: 10956827
    Abstract: The present disclosure provides for a method of designing a radiofrequency or broadband pulse sequence. The method can comprise a qubit (e.g., nuclear spin, photon, electron, atomic spin, dot spin) and a harmonic oscillator wherein a flip angle is controlled by steering a spring between specific states.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: March 23, 2021
    Assignee: Washington University
    Inventor: Jr-Shin Li
  • Patent number: 10950011
    Abstract: Systems and methods for determining a distribution map of susceptibility property of an object are provided. The method may include one or more of the following operations. A phase diagram corresponding to a magnetic resonance (MR) signal of the object may be obtained. A preliminary field map may be determined based on the phase diagram. Preliminary error limiting information associated with the preliminary field map may be obtained. A preliminary distribution map of susceptibility property of the object may be determined based on the preliminary field map and the preliminary error limiting information. An iteration process including at least one iteration may be performed to determine a target distribution map of susceptibility property of the object.
    Type: Grant
    Filed: January 14, 2019
    Date of Patent: March 16, 2021
    Assignee: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
    Inventor: Yongquan Ye
  • Patent number: 10935614
    Abstract: Embodiments of the present disclosure provide devices and systems that support wireless communication between wireless communication devices residing within, and external to, a Faraday cage. In some embodiments, devices and systems are provided for transmitting wireless signals through a waveguide port of a Faraday cage for wireless signals having frequencies below the cutoff frequency of the waveguide port, where a portion of the waveguide port is compromised by the presence of a conductor, thereby permitting the propagation of electromagnetic waves. In some embodiments, aspects of the present disclosure are employed to adapt a magnetic resonance imaging system for communications between a scanner room and a control room.
    Type: Grant
    Filed: March 2, 2020
    Date of Patent: March 2, 2021
    Assignee: INNOVERE MEDICAL INC.
    Inventors: Kevan Anderson, Garry Liu
  • Patent number: 10912470
    Abstract: A system and method for analyzing blood flow in a subject's brain is provided. In some aspects, the method includes analyzing fMRI data to identify signals related to blood flow, and selecting a zero time lag seed regressor using the identified signals. The method also includes correlating the selected seed regressor to identify a subset of the fMRI data that correlates with the seed regressor and is offset in time, combining the subset of the data to determine a time-delayed regressor, and performing repetitions to obtain a number of time-delayed regressors, where for each repetition, the seed regressor is adjusted using a previous time-delayed regressor. The method further includes analyzing the data using the time-delayed regressors to determine blood delivery from vessels across the brain, and generating a report. In some aspects, a second recursive procedure may be performed using an optimized seed regressor obtained from a first recursive procedure.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: February 9, 2021
    Assignee: MCLEAN HOSPITAL CORPORATION
    Inventors: Yunjie Tong, Blaise B. Frederick
  • Patent number: 10902602
    Abstract: A system for computer-aided triage includes a router, a remote computing system, and a client application. A method for computer-aided triage includes receiving a data packet associated with a patient and taken at a point of care; checking for a suspected condition associated with the data packet; in an event that the suspected condition is detected, determining a recipient based on the suspected condition; and transmitting information to a device associated with the recipient.
    Type: Grant
    Filed: July 24, 2020
    Date of Patent: January 26, 2021
    Assignee: Viz.ai Inc.
    Inventors: Christopher Mansi, David Golan, Gil Levi, Yuval Duchin
  • Patent number: 10898103
    Abstract: The present disclosure relates to a system and method for MRI with respect to vessels and bleedings. The method may include exciting a region of interest by applying an RF pulse, wherein the region of interest includes a vessel region and a bleeding region. The method may further include acquiring a plurality of echo signals related to the region of interest. The method may further include generating one or more magnitude images based on the plurality of echo signals, generating a first image with respect to the vessel region based on the one or more magnitude images, generating one or more phase images based on the plurality of echo signals, and generating a second image with respect to a distribution of susceptibility of the bleeding region based on the one or more phase images.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: January 26, 2021
    Assignees: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD., THE AFFILIATED DRUM TOWER HOSPITAL OF NANJING UNIVERSITY MEDICAL SCHOOL
    Inventors: Yongquan Ye, Bing Zhang
  • Patent number: 10896497
    Abstract: The present invention is an inconsistency detecting system in a mixed-reality system that includes a portable display device having a transmissive display unit and a photographing unit for photographing a real space and that renders a virtual object on the display unit in a predetermined real space such that the virtual object is visually recognized by a user, wherein the inconsistency detecting system generates first point cloud data from a combined image obtained by displaying the virtual object in a superimposed fashion on a naked-eye visual-field image, generates second point cloud data by using point cloud data of the three-dimensional space in the determined user environment as well as point cloud data of the virtual object, and detects an inconsistency on the basis of a result of comparison between the first point cloud data and the second point cloud data.
    Type: Grant
    Filed: June 24, 2019
    Date of Patent: January 19, 2021
    Assignee: CYGAMES, INC.
    Inventor: Shuichi Kurabayashi
  • Patent number: 10884079
    Abstract: A birdcage coil for a magnetic resonance imaging (MRI) system is provided. The birdcage coil includes: (a) a pair of conductive end rings, each having a generally domed shape in axial cross section; (b) a plurality of conductive, elongated rungs extending between the pair of conductive end rings in an axial direction; and (c) an LC delay circuit incorporated into the pair of rings and the plurality of elongated rungs, where the LC delay circuit includes a plurality of capacitive elements and a plurality of inductive elements. In the present invention circumferential spacing between adjacent elongated rungs is varied to improve homogeneity of the volume excitation. Alternatively, or in addition, LC circuit capacitance and/or inductance values are varied to improve homogeneity of the volume excitation.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: January 5, 2021
    Assignee: Children's Hospital Medical Center
    Inventors: Wolfgang Manfred Loew, Charles Lucian Dumoulin
  • Patent number: 10885707
    Abstract: A network for generating 3D shape includes a perceptual network and a Graphic Convolutional Network (GCN). The GCN includes a coarse shape generation network for generating a coarse shape, and a Multi-View Deformation Network (MDN) for refining the coarse shape. The MDN further comprises at least one MDN unit, which in turn comprises a deformation hypothesis sampling module, a cross-view perceptual feature pooling module and a deformation reasoning module. Systems and methods are also provided.
    Type: Grant
    Filed: May 23, 2020
    Date of Patent: January 5, 2021
    Assignee: FUDAN UNIVERSITY
    Inventors: Yanwei Fu, Chao Wen, Yinda Zhang, Zhuwen Li
  • Patent number: 10874370
    Abstract: A light pulse is emitted from a light source for illuminating a medium. Energy level data of the light pulse is measured before the light pulse enters the medium. An image sensor captures an image that includes an interference pattern generated by an exit signal of the light pulse exiting the medium interfering with a reference wavefront. Normalized intensity data is generated by normalizing intensity data exit signal data by the energy level data.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: December 29, 2020
    Assignee: Open Water Internet Inc.
    Inventors: Caitlin Regan, Sarmishtha Satpathy, Edgar Emilio Morales Delgado, Craig Newswanger
  • Patent number: 10877070
    Abstract: Probes with fiducial targets, probe systems including the same, and associated methods. The probes include a probe body, a probe beam, a probe tip configured to contact a device under test (DUT), and a fiducial target affixed to the probe beam. The fiducial target is configured to be visible to an optical system to determine a position of the probe tip relative to the DUT. The methods include methods of utilizing and/or manufacturing the probes.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: December 29, 2020
    Assignee: FormFactor Beaverton, Inc.
    Inventors: Joseph George Frankel, Koby L. Duckworth, Kazuki Negishi
  • Patent number: 10859654
    Abstract: A method for determining quantitative parameters for dynamic contrast-enhanced MR data includes acquiring a set of contrast-enhanced MR data for a region of interest using a T1-weighted pulse sequence, generating at least one contrast concentration curve based on the set of contrast-enhanced MR data, accessing a comprehensive dictionary of contrast concentration curves and generating a grouped dictionary that has a plurality of groups based on the comprehensive dictionary. Each group includes a plurality of correlated contrast concentration curves and a group representative signal for the group. The method also includes comparing a contrast concentration curve with the group representative signal of each group to select a group, comparing the contrast concentration curve to the plurality of correlated contrast concentration curves in the selected group to identify a set of quantitative parameters for the concentration curve and generating a report including the set of quantitative parameter.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: December 8, 2020
    Assignee: CASE WESTERN RESERVE UNIVERSITY
    Inventors: Vikas Gulani, Satyam Ghodasara, Katherine Wright, Nicole Seiberlich, Mark A. Griswold
  • Patent number: 10845447
    Abstract: A system and method for controlling a magnetic resonance imaging (MRI) system to create magnetic resonance (MR) angiograms of a subject. The method includes controlling the MRI system to acquire MR data by performing a pulse sequence that includes at least one set of modules formed by a first ?/2 module, a (readout, ?)n module, a second ?/2 module. In this case, ? denotes a radiofrequency (RF) flip angle and n denotes a number of times that the set of modules is repeated. The method also includes reconstructing an MR angiogram of the subject from the MR data.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: November 24, 2020
    Assignee: NORTHSHORE UNIVERSITY HEALTHSYSTEM
    Inventors: Robert R. Edelman, Ioannis Koktzoglou
  • Patent number: 10827999
    Abstract: A dynamic analysis apparatus includes: an index value meter that measures, in a plurality of areas in a dynamic image obtained by performing radiography on a region including a blood vessel with respect to a subject, a temporal change of an index value regarding a position and a shape of the blood vessel; an elongation rate calculator that calculates an elongation rate of the blood vessel in each area on the basis of the temporal change of the index value in each area measured by the index value meter; and an elongation rate display that displays a list of the elongation rate in each area calculated by the elongation rate calculator.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: November 10, 2020
    Assignee: KONICA MINOLTA, INC.
    Inventor: Noritsugu Matsutani
  • Patent number: 10823792
    Abstract: In a case where a subject parameter distribution is obtained using MRI, a magnetization transfer effect is suppressed such that the calculation accuracy of T1 and T2 of brain parenchyma can be improved and a variation in the T1 value of blood caused by the effect of blood flow can be reduced. In imaging for parameter estimation, a magnetization transfer effect is suppressed by using a high frequency magnetic field pulse having a narrow frequency band as an excitation pulse. In a case where the frequency band is narrow, the high frequency magnetic field pulse has a shape in which the excitation profile is similar to a Gaussian function. A rising portion of the shape is arranged in a field of view where the head is an imaging target.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: November 3, 2020
    Assignee: HITACHI, LTD.
    Inventors: Yo Taniguchi, Tomoki Amemiya, Suguru Yokosawa, Toru Shirai, Hisaaki Ochi
  • Patent number: 10823808
    Abstract: An image processing apparatus according to an embodiment includes processing circuitry. The processing circuitry obtains a first Magnetic Resonance (MR) image corresponding to a first b-factor and corresponding to each of a plurality of axial directions and to obtain a second MR image corresponding to a second b-factor different from the first b-factor and corresponding to each of the plurality of axial directions. The processing circuitry obtains through a calculation, with respect to each of the axial directions, an MR image as a computed image corresponding to a third b-factor different from the first b-factor and the second b-factor by using the first MR image and the second MR image. The processing circuitry generates a combined image by combining together the plurality of computed images each of which was obtained with respect to a different one of the axial directions.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: November 3, 2020
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Toru Higaki, Kazuo Awai
  • Patent number: 10825169
    Abstract: An ICA to identify a large number of candidate correlation patterns is carried out based on a time series of image data. The large number of candidate correlation patterns includes a large number of neurophysical events, as well as false patterns owing to noise. The neurophysical events as well as the false patterns are then separated, for example on the basis of a metric, which indicates an intensity of the candidate correlation patterns in a section of the brain, or by a computer-implemented classifier. Techniques of this kind can be used in conjunction with functional magnetic resonance imaging.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: November 3, 2020
    Assignee: Siemens Healthcare GmbH
    Inventor: Thomas Beck
  • Patent number: 10816629
    Abstract: Some aspects include a method of detecting change in biological subject matter of a patient positioned within a low-field magnetic resonance imaging device, the method comprising: while the patient remains positioned within the low-field magnetic resonance device: acquiring first magnetic resonance image data of a portion of the patient; acquiring second magnetic resonance image data of the portion of the patient subsequent to acquiring the first magnetic resonance image data; aligning the first magnetic resonance image data and the second magnetic resonance image data; and comparing the aligned first magnetic resonance image data and second magnetic resonance image data to detect at least one change in the biological subject matter of the portion of the patient.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: October 27, 2020
    Assignee: Hyperfine Research, Inc.
    Inventors: Michal Sofka, Jonathan M. Rothberg, Gregory L. Charvat, Tyler S. Ralston
  • Patent number: 10806395
    Abstract: Disclosed is a pain detection system and method. Preferred methods include capturing imaging data from patient using functional near-infrared spectroscopy. In methods of the invention, pain may be assessed from a non-responsive patient. Preferred methods may further include measuring hemodynamic parameters using the optical imaging data and averaging the measured hemodynamic parameters to reduce background noise. Additionally, a pattern in the averaged hemodynamic parameters is identified and the pattern is compared to a predetermined associated with patient pain. The method further includes detecting, by the processor, a similarity between the pattern and the predetermined pattern and outputting a signal indicating patient pain.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: October 20, 2020
    Assignee: Children's Medical Center Corporation
    Inventors: David Borsook, Lino Becerra
  • Patent number: 10802100
    Abstract: A method for obtaining magnetic resonance imaging (MRI) echo-planar image (EPI) data, including providing a homogeneous, static background field; providing a gradient field to select a slice of an object for imaging; applying Radio-frequency (RF) pulses to excite magnetic resonance in the selected slice; and measuring a radio frequency signal emitted by the selected slice containing image data. The RF pulses are repeatedly applied separated by a time period shorter than a recovery time of static material in the selected slice such that the static material remains in a state of magnetic saturation, while dynamic material arriving within the slice since a previous RF pulse is not magnetically saturated.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: October 13, 2020
    Assignees: Siemens Healthcare Limited, Siemens Healthcare GmbH, University College Cardiff Consultants Ltd.
    Inventors: Joseph Whittaker, Patrick Liebig, Fabrizio Fasano, Robin Heidemann, Kevin Murphy
  • Patent number: 10782379
    Abstract: A method, an apparatus, and a device for magnetic resonance chemical shift encoding imaging are provided. The method includes in a phasor-error spectrum established based on a simplified multi-point magnetic resonance signal model, determining a pixel point having a unique phase factor value and causing the phasor-error spectrum to reach a local minimum value as an initial seed point; estimating a phase factor value of a pixel point to be estimated according to the initial seed point to obtain a field map; mapping and merging the field maps at the highest resolution to obtain a reconstructed field map; determining a reconstructed seed point from the reconstructed field map, and estimating the reconstructed seed point to obtain a phase factor value of a reconstructed pixel point to be estimated.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: September 22, 2020
    Assignee: SHENZHEN INSTITUTES OF ADVANCES TECHNOLOGY CHINESE ACADEMY OF SCIENCES
    Inventors: Hairong Zheng, Xin Liu, Chuanli Cheng, Chao Zou
  • Patent number: 10776925
    Abstract: A system for generating a water-fat separated image is provided. The system includes a memory device that stores training results of a neural network, and an MRI controller in electronic communication with the memory device and a magnet assembly. The controller is operative to: acquire MR data from an object via the magnet assembly; generate at least two magnitude images from the acquired MR data; and generate the water-fat separated image by applying the training results to the at least two magnitude images.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: September 15, 2020
    Assignee: GENERAL EELECTRIC COMPANY
    Inventor: Tao Zhang
  • Patent number: 10776416
    Abstract: A radiation imaging apparatus includes one or more processors and one or more memories storing, as one or more computer programs, computer-readable instructions to be executed by the processors to be performed a process including: obtaining a first imaging protocol including one or more parameters concerning radiation imaging; searching a plurality of imaging protocols stored in a storage unit for a second imaging protocol differing in some parameters from the obtained imaging protocol; causing a display unit to display a user interface for selecting an imaging protocol as a replacement destination of the first imaging protocol from the second imaging protocol specified when the second imaging protocol is specified by the process of searching; and replacing the first imaging protocol with the selected second imaging protocol in accordance with an instruction from an operator to the user interface.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: September 15, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Masahiro Abe
  • Patent number: 10753994
    Abstract: Systems and methods for simultaneous multi-slice imaging. In one embodiment, a method for magnetic resonance imaging of a region of interest of a subject includes simultaneously exciting multiple, different slice locations corresponding to a region of interest of a subject using a radio-frequency (rf) pulse, for obtaining multiple slices. The excitation phase is modulated between acquisitions using a phase cycling scheme configured to create signal cancellation of all but one slice of the multiple excited slices from the different slice locations. The method also includes applying an imaging pulse sequence using a spiral k-space trajectory to acquire image data from the multiple slices, for an image or series of images of the region of interest; and reconstructing, from the multiple slices, images of the region of interest, wherein the reconstructing recovers unaliased images from the different slice locations.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: August 25, 2020
    Assignee: University of Virginia Patent Foundation
    Inventors: Michael Salerno, Yang Yang
  • Patent number: 10747847
    Abstract: According to the embodiments, a medical image diagnosis apparatus which is accessible to an external medical scanner includes processing circuitry. The processing circuitry acquires from the medical scanner medical image data by imaging a subject based on a protocol which is a predetermined imaging procedure. The processing circuitry acquires from a sensor biometric information of at least when the subject is being photographed. The processing circuitry extracts characteristic information of the subject by processing the biometric information acquired up until a previous study. The processing circuitry assists a design of a protocol for a current study based on the characteristic information of the subject.
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: August 18, 2020
    Assignee: Canon Medical Systems Corporation
    Inventors: Hideaki Ishii, Manabu Hiraoka
  • Patent number: 10748309
    Abstract: A system for bone imaging is disclosed. A processing unit is provided for processing an echo MRI dataset. The processing unit is configured to apply a phase ramp to the radial sampling lines of the complex data according to the radial sampling scheme to obtain a bone-enhanced image dataset, wherein a single phase ramp is applied to a radial sampling line of the sampling scheme, which radial sampling line extends on both sides of an origin defined by the echo time, and wherein the phase ramp is based on an equation. A combining unit is provided for combining the MRI dataset with the bone-enhanced image dataset to obtain a background suppressed image dataset.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: August 18, 2020
    Assignee: MRIGUIDANCE B.V.
    Inventor: Peter Roland Seevinck
  • Patent number: 10743791
    Abstract: A system and method for assessing tissue properties of a subject within a region of interest (ROI) using a magnetic resonance imaging (MRI) system includes acquiring chemical-shift-encoded imaging data of the ROI. The method also includes determining, from imaging data a proton density water fraction (PDWF) map and quantifying, using the PDWF map, a property of tissue within the ROI. The method further includes generating, using the PDWF map, a report indicating the quantified property of the tissue. The tissue may include fibroglandular tissue (FGT).
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: August 18, 2020
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Scott B. Reeder, Roberta M. Strigel
  • Patent number: 10746828
    Abstract: In a method and apparatus for generating image data (other than magnetic resonance (MR) data) in an examination chamber of an MR scanner, an image generating unit generates the image data, a first RF-shielding portion completely encloses the image generating unit except for at least one opening for exchanging image data with the surrounding environment, and a horn-shaped second RF shielding portion is arranged around the at least one opening and is electrically connected with the first RF shielding portion such that the at least one opening opens into the horn-shaped second RF shielding portion.
    Type: Grant
    Filed: August 10, 2018
    Date of Patent: August 18, 2020
    Assignee: Siemens Healthcare GmbH
    Inventor: Stefan Popescu
  • Patent number: 10739421
    Abstract: A magnetic resonance imaging (MRI) system includes a table and at least one processor. The table is configured to support a patient, and to travel along a length in a direction of movement through an imaging zone to at least one imaging position. A spatial gradient field varies for at least a portion of the imaging zone. The at least one processor is operably coupled to the table, and configured to obtain a spatial gradient field curve representing magnitude of the spatial gradient field as a function of position along the direction of movement; determine a table speed curve using the spatial gradient field curve, wherein the table speed varies along the direction of movement; and control movement of the table using the table speed curve.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: August 11, 2020
    Assignee: GE PRECISION HEALTHCARE LLC
    Inventors: LiYa Ma, Kun Wang, Tao Wang
  • Patent number: 10732246
    Abstract: In one embodiment, a magnetic resonance imaging apparatus includes memory circuitry configured to store a predetermined program; and processing circuitry configured, by executing the predetermined program, to set an FSE type pulse sequence in which an excitation pulse is followed by a plurality of refocusing pulses, the plurality of the refocusing being divided into at least a first pulse group subsequent to the excitation pulse and a second pulse group subsequent to the first pulse group, the first pulse group including refocusing pulses having a predetermined high flip angle, and the second pulse group including refocusing pulses having flip angles decreased from the predetermined high flip angle toward a flip angle of zero, and generate an image of an object from respective MR signals corresponding to the plurality of refocusing pulses acquired by applying the fast spin echo type pulse sequence to the object.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: August 4, 2020
    Assignee: Canon Medical Systems Corporation
    Inventors: Mitsue Miyazaki, Keiichiro Ishi
  • Patent number: 10729354
    Abstract: A system and method is provided for modeling brain dynamics in normal and diseased states.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: August 4, 2020
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventor: Jin Hyung Lee
  • Patent number: 10726552
    Abstract: The present disclosure relates to systems and methods for determining quantitative chemical exchange or exchangeable proton information from a region-of-interest in a subject. The methods and systems use adaptive fitting to quantify magnetic resonance (MR) data, such as chemical exchange saturation transfer magnetic resonance imaging (CEST MRI) images, using initial values based on, for example, Lorentzian fitting. Images are iteratively less downsampled until quantitative maps of desired resolution are obtained. Such an approach allows for reliable fitting at a faster fitting speed, and is less susceptible to suboptimal signal to noise (SNR) than conventional methods.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: July 28, 2020
    Assignee: The General Hospital Corporation
    Inventors: Phillip Zhe Sun, Iris Yuwen Zhou
  • Patent number: 10718841
    Abstract: A system and methods for improved homogeneous and inhomegeneous magnetic transfer imaging are provided. In some aspects, a plurality of gradient coils and an RF system of a magnetic resonance imaging (“MRI”) system are controlled, using a computer, to perform, at least one pulse sequence that includes a preparation module followed by an imaging module, wherein the preparation module comprises a plurality of radio frequency (“RF”) saturation pulses applied according to a concentrated pulse cycle to manipulate exchangeable magnetization from protons in the subject, and the imaging module is configured to acquire image data. The computer is also configured to analyze the image data acquired to generate frequency information indicative of the exchangeable magnetization from protons in the subject, and generate a report, using the frequency information, pertaining to inhomogeneous or homogeneous magnetization transfer occurring in the subject.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: July 21, 2020
    Assignee: Beth Israel Deaconess Medical Center, Inc.
    Inventors: David Alsop, Gopal Varma