Patents Examined by Frederick Wenderoth
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Patent number: 12204008Abstract: According to a method, first MR reference data and first MR imaging data are captured. Further MR imaging data is then captured. The capturing includes in each case generating at least one excitation pulse with a transmit coil of the magnetic resonance apparatus and irradiating the at least one excitation pulse into a patient receiving region, generating MR signals in a generation region using the at least one excitation pulse, and receiving the MR signals as MR data with a receive coil. A degree of difference that describes a difference between the generation region on capture of the first MR reference data and the generation region on capture of the further MR imaging data is determined. MR reference data is provided as a function of the degree of difference. An MR image is reconstructed based on the captured further MR imaging data and the provided further MR reference data.Type: GrantFiled: December 7, 2021Date of Patent: January 21, 2025Assignee: Siemens Healthineers AGInventors: Mario Zeller, Dominik Paul
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Patent number: 12196834Abstract: A calibration system for magnetometers includes magnetometers configured to measure a magnetic field to be measured; a magnetometer holder fixedly mounted on the magnetometer holder; at least one magnetic field generating device having its position fixed relative to the magnetometers, and used to generate a calibration magnetic field distribution in a space to be measured; and a calculation device configured to calculate the magnitudes of magnetic field vectors at the positions of the magnetometers according to the calibration magnetic field distribution generated by the at least one magnetic field generating device in the space to be measured, receive measured magnitudes of the magnetic field vectors from the magnetometers, and calculate detection gain values of the magnetometers on the basis of the calculated magnitudes of the magnetic field vectors and the measured magnitudes of the magnetic field vector.Type: GrantFiled: July 30, 2021Date of Patent: January 14, 2025Assignees: COGNITIVE MEDICAL IMAGING LTD., INSTITUTE OF BIOPHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Fan Wang, Yan Zhuo, Sijia Yang, Shunzi Wu
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Patent number: 12196831Abstract: Methods and systems perform magnetic resonance fingerprinting (MRF) by obtaining magnetic resonance data over a main field-of-view (FOV) and resulting from providing a magnetic resonance fingerprinting pulse sequence to a sample. The pulse sequence includes gradient waveforms and radio frequency (RF) pulses that have pulse sequence parameters specifically tailored for scanning, not the entire main FOV but rather a reduced portion of that main FOV. The methods and systems further include comparing the magnetic resonance data from the sample to a fingerprint dictionary of signal profiles that specifically correspond to the reduced portion of the main FOV and generating tissue property maps that correspond only to that reduced portion.Type: GrantFiled: November 18, 2022Date of Patent: January 14, 2025Assignee: REGENTS OF THE UNIVERSITY OF MICHIGANInventors: Vikas Gulani, Nicole Seiberlich, Jon-Fredrik Nielsen, Yun Jiang
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Patent number: 12196828Abstract: Methods and systems perform magnetic resonance fingerprinting (MRF) that provides tissue characterization through simultaneous quantification of water tissue properties and proton density fat fraction (PDFF), by using water-only and fat-only images from MRF. MRF is performed using rosette trajectories scanning k-space to effectively isolate water tissue and fat tissue, by separating these rosette trajectories into individual segments that are then analyzed to enable signals from fat tissue to be distinguished from water.Type: GrantFiled: November 18, 2022Date of Patent: January 14, 2025Assignee: REGENTS OF THE UNIVERSITY OF MICHIGANInventors: Nicole Seiberlich, Yun Jiang, Jesse Hamilton, Yuchi Liu
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Patent number: 12196829Abstract: A resonance circuit includes: an inductor formed along a surface of a first cylindrical form having a central axis; and a capacitor formed along a surface of a second cylindrical form having the central axis, wherein the inductor and the capacitor are electrically connected to each other to form a closed loop.Type: GrantFiled: December 22, 2022Date of Patent: January 14, 2025Assignee: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGYInventors: Konami Izumi, Yutaka Fujii, Yu Suzuki
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Patent number: 12189015Abstract: The present disclosure relates to a coil assembly of an MRI device. The MRI device may be configured to perform an MR scan on a subject. The coil assembly may include one or more coil units, a substrate, and a sensor mounted within or on the substrate. The one or more coil units may be configured to receive an MR signal from the subject during the MR scan. The substrate may be configured to position the one or more coil units during the MR scan. The one or more coil units may be mounted within or on the substrate. The sensor may be configured to detect a motion signal relating to a physiological motion of the subject before or during the MR scan.Type: GrantFiled: November 28, 2022Date of Patent: January 7, 2025Assignee: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.Inventor: Ling Ji
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Patent number: 12181551Abstract: The present invention discloses a magnetic resonance fingerprinting imaging method with variable number of echoes, in addition to conventional MRF coding such as changing the excitation pulse angle, the method also introduces the change of the number of echoes, so that quantitative maps of B0, B1+, T1 and T2* can be obtained in a single scan. Further, if the echo time corresponding to the in-phase, opposed-phase and in-phase of water and fat is set for three consecutive echoes, the present invention can also image water and fat, and achieve the accurate quantification of B0, B1+, T1w, T1F, [T2*]w and [T2*]F. Through in vivo experiments and simulations, the effectiveness of the present invention has been proved. Therefore, the present invention can provide multiple information representations for common brain diseases (glioma) and fatty diseases (such as lipoma, fatty liver, etc.), which is conducive to clinical diagnosis and treatment.Type: GrantFiled: November 18, 2022Date of Patent: December 31, 2024Assignee: ZHEJIANG UNIVERSITYInventors: Huihui Ye, Jinmin Xu, Huafeng Liu
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Patent number: 12181544Abstract: A radiofrequency (RF) resonator array device for use in magnetic resonance imaging (MRT), The RF resonator array device includes a substrate. An array of coupled split ring resonators are located on the substrate. Each of the coupled split ring resonators includes a first split ring resonator positioned on a first side of the substrate and a second split ring resonator positioned on a second side of the substrate located opposite the first side. The second split ring resonator is inductively coupled to the first split ring resonator. Methods of making and using the RF resonator device are also disclosed.Type: GrantFiled: May 5, 2021Date of Patent: December 31, 2024Assignee: ICAHN SCHOOL OF MEDICINE AT MOUNT SINAIInventors: Akbar Alipour, Priti Balchandani, Alan C. Seifert
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Patent number: 12175331Abstract: A method is provided for deterministically generating a photonic resource state for computational quantum computing. The method includes producing a sequence of emitted photonic qubits. The sequence of emitted photonic qubits is directed to an optical circulator of a passive entanglement component. The passive entanglement component includes the optical circulator, a delay line, and a Controlled-Z (CZ) gate. Each photon in the sequence of emitted photonic qubits is reflected at the end of the first delay line to generate a sequence of reflected photonic qubits after a predetermined time delay. The CZ gate entangles the sequence of emitted photonic qubits with the sequence of reflected photonic qubits. The optical circulator directs a resource state generated from the sequence of reflected photonic qubits entangled with the sequence of emitted photonic qubits to an output of the passive component. The resource state is emitted as a sequence of entangled photonic qubits.Type: GrantFiled: November 23, 2022Date of Patent: December 24, 2024Assignee: CISCO TECHNOLOGY, INC.Inventors: Alireza Shabani, Seyed Mohammad Hassan Shapourian
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Patent number: 12174278Abstract: The invention provides a method for performing a magnetic resonance measurement of an element in a target region, wherein the element has a magnetic resonance excitation spectrum peak with a linewidth LR, wherein the method comprises a measurement cycle (100) comprising: a magnetization transfer stage (110) comprising providing a plurality of pulses (115) of first radiation to the target region, wherein the plurality of pulses (115) are selected to provide a net pulse having a net pulse angle ?N?1°, and wherein the first radiation comprises a first frequency spectrum peak having a first linewidth LF, wherein the first frequency spectrum peak at least partially overlaps with the magnetic resonance excitation spectrum peak, and wherein LF?5*LR; an excitation stage (130) comprising providing a radio frequency pulse to the target region, wherein the radio frequency pulse excites the element resulting in a transverse magnetization of the element; and a measurement stage (140) comprising detecting a signal from theType: GrantFiled: May 7, 2021Date of Patent: December 24, 2024Assignee: Stichting Radboud UniversiteitInventor: David Norris
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Patent number: 12164259Abstract: According to a first aspect of the present invention, there is provided a toner cartridge detachably mountable to a receiving device, the toner cartridge comprising a container including a accommodating portion for accommodating the toner and a discharge opening for discharging the toner from the accommodating portion into the receiving device; and an open/close member including a closing portion for closing the discharge opening and an engaging portion movable relative to the closing portion, the open/close member being rotatable relative to the container between (a) an opening position for causing the closing portion to open the discharge opening and (b) a closing position for causing the closing portion to close the discharge opening, wherein the engaging portion is movable relative to the closing portion between (c) a engaging position for engagement with the receiving device to receive a force for moving the open/close member from the opening position to the closing position when the toner cartridge is dType: GrantFiled: September 20, 2023Date of Patent: December 10, 2024Assignee: Canon Kabushiki KaishaInventors: Yosuke Kashiide, Takashi Kimura
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Patent number: 12153115Abstract: A device for remotely diagnosing an MRI coil comprises: a Diagnostic Interface Device (or DID); means for plugging the MRI coil into the DID when the MRI coil is not in use, said device adapted for: (a) measuring the status of certain key electrical conditions for the coil; (b) receiving a response back from the signals initially aimed at the coil in question; (c) processing those responses received; and (d) transferring the measured electronic status (using a specific code number for the coil) to a remote storage area on the internet. A method of use is also disclosed.Type: GrantFiled: February 16, 2022Date of Patent: November 26, 2024Inventors: Fahad Alraddadi, William Monski, Tobias Sun
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Patent number: 12153111Abstract: A method for magnetic resonance imaging performs chemical shift encoded imaging to produce complex dual-echo images which are then applied (with imaging parameters) as input to a deep neural network to produce as output water-only and fat-only images. The deep neural network can be trained with ground truth water/fat images derived from chemical shift encoded images using a conventional water-fat separation algorithm such as projected power approach, IDEAL, or VARPRO. The chemical shift encoded imaging comprises performing an image acquisition with the MRI scanner via a spoiled-gradient echo sequence or a spin-echo sequence.Type: GrantFiled: January 27, 2023Date of Patent: November 26, 2024Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Shreyas S. Vasanawala, Yan Wu
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Patent number: 12140653Abstract: The invention relates to a method of Dixon-type MR imaging of an object (10) placed in an examination volume of a MR device (1). It is an object of the invention to provide a method that enables an improved Dixon water/fat separation in combination with a dual-acquisition gradient-echo imaging sequence.Type: GrantFiled: September 11, 2020Date of Patent: November 12, 2024Assignee: Koninklijke Philips N.V.Inventor: Holger Eggers
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Patent number: 12140648Abstract: A magnetic resonance member 1 includes a diamond crystal including plural diamond nitrogen vacancy center, and a high-frequency magnetic field generator 2 applies magnetic field of microwave to the magnetic resonance member 1. The aforementioned plural diamond nitrogen vacancy centers include diamond nitrogen vacancy centers arranged in directions of predetermined plural axes among four axes that indicates four connection directions of carbon atoms in the diamond crystal; and the aforementioned magnetic resonance member 1 is arranged in a direction that provides a substantially largest sensitivity of the measurement target magnetic field in the diamond nitrogen vacancy centers arranged in the predetermined plural axes.Type: GrantFiled: April 15, 2021Date of Patent: November 12, 2024Assignee: Kyocera Document Solutions, Inc.Inventors: Yoshiharu Yoshii, Tsutomu Otsuka, Masateru Hashimoto, Norikazu Mizuochi, Kan Hayashi, Yuki Takemura
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Patent number: 12140649Abstract: A method is for measuring phase currents of a device under test, in particular of an inverter, in which a sensor arrangement, which has a component including a crystal lattice with a defect, is arranged in a region of the device under test. The method includes using the sensor arrangement to detect a magnetic field formed by a vector of magnetic fields, the magnetic fields each in turn being brought about by one of the phase currents of the device under test, and calculating a vector of the phase currents from the vector of the magnetic fields based on a coefficient matrix.Type: GrantFiled: March 3, 2021Date of Patent: November 12, 2024Assignee: Robert Bosch GmbHInventors: Andreas Brenneis, Tino Fuchs, Felix Michael Stuerner, Robert Roelver
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Patent number: 12135363Abstract: A system and method comprises execution of a segmented magnetic resonance imaging pulse sequence, the pulse sequence including a plurality of shots, each of the plurality of shots including an inversion recovery preparation pulse and acquiring a respective segment of k-space lines, wherein each shot comprises a different inversion time between a peak of the inversion recovery pulse and a midpoint of the acquisition of the respective segment of k-space lines, and reconstruction of an image based on the acquired respective segments of k-space lines. In some aspects, the k-space lines acquired by each shot are consecutive in a phase encoding direction of k-space and each shot acquires the segments of k-space lines acquired by prior shots in the sequence, and a time delay between the inversion recovery preparation pulse and acquisition of a first segment for each shot is equal.Type: GrantFiled: October 25, 2022Date of Patent: November 5, 2024Assignees: Siemens Healthineers AG, Duke UniversityInventors: Wolfgang G. Rehwald, Raymond J. Kim, Enn-Ling Chen
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Patent number: 12130344Abstract: Disclosed herein is a sensor chip for parallelized magnetic sensing of a plurality of samples, a system for parallelized magnetic sensing of a plurality of samples and a method for probing a plurality of samples using optically addressable solid-state spin systems. The sensor chip comprises an optically transparent substrate comprising a plurality of optically addressable solid-state spin systems arranged in a plurality of sensing regions in a surface layer below a top surface of the substrate. The sensor chip further comprises a plurality of sample sites, wherein each sample site is arranged above a respective sensing region. The sensor chip has a light guiding system configured to provide an optical path through the substrate connecting each of the sensing regions.Type: GrantFiled: April 23, 2021Date of Patent: October 29, 2024Assignee: TECHNISCHE UNIVERSITÄT MÜNCHENInventors: Andreas Deeg, Dominik Bucher
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System and method for oscillatory eddy current correction for diffusion-weighted echo-planar imaging
Patent number: 12123933Abstract: A method for correcting diffusion-weighted echo-planar imaging data (DW-EPI) includes obtaining a first reference scan with no diffusion gradients applied, a second reference scan with a diffusion gradient applied only along a frequency direction, a third reference scan with the diffusion gradient applied only along a phase direction, and a fourth reference scan with the diffusion gradient applied only along a slice direction acquired utilizing an MRI scanner, wherein the reference scans lack phase encoding. The method includes obtaining DW-EPI data acquired utilizing the MRI scanner, wherein the DW-EPI data includes phase errors due to oscillatory eddy currents causing time-varying B0 shift. The method includes generating a phase correction factor based on the reference scans and correcting the phase errors due to the oscillatory eddy currents in the DW-EPI data independent of diffusion gradient direction utilizing the phase correction factor to generate corrected DW-EPI data.Type: GrantFiled: December 12, 2022Date of Patent: October 22, 2024Assignee: GE Precision Healthcare LLCInventors: Hua Li, Lei Gao, Gaohong Wu -
Patent number: 12117511Abstract: Disclosed herein is a method of operating a medical system (100, 300). The method comprises receiving (200) pulse sequence commands (124) configured to control a magnetic resonance imaging system (302) to acquire k-space data (330) according to a Compressed Sensing magnetic resonance imaging protocol. The method further comprises receiving (202) magnetic resonance scan parameters that are descriptive of a configuration of the pulse sequence commands and a configuration of the magnetic resonance imaging system. The method further comprises receiving (204) an predicted undersampling factor (128) in response to inputting the magnetic resonance scan parameters into a neural network, wherein the neural network is configured to output the predicted undersampling factor in response to receiving magnetic resonance scan parameters. The method further comprises adjusting (206) the pulse sequence commands (130) to select or modify sampling of the k-space data based on the predicted undersampling factor.Type: GrantFiled: May 14, 2021Date of Patent: October 15, 2024Assignee: Koninklijke Philips N.V.Inventors: Michael Wyss, Andreas Hock, Kilian Weiss