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    BREATHING AND MOTION MONITORING METHOD FOR MRI SYSTEM, MRI SYSTEM AND METHOD, AND STORAGE MEDIUM
    2.
    发明申请
    BREATHING AND MOTION MONITORING METHOD FOR MRI SYSTEM, MRI SYSTEM AND METHOD, AND STORAGE MEDIUM 有权

    公开(公告)号：US20220381864A1

    公开(公告)日：2022-12-01

    申请号：US17738219

    申请日：2022-05-06

    Applicant: GE Precision Healthcare LLC

    Inventor： Yaan Ge ,  Liya Ma ,  Sheng Tong ,  Qingyu Dai ,  Kun Wang

    IPC: G01R33/567

    Abstract: The present application provides a breathing and motion monitoring method for an MRI system, an MRI system and method, and a storage medium. The MRI includes a scanner, a controller, and a signal processor. The scanner includes a radio-frequency transmit chain and a radio-frequency transmit coil, and an object under detection is positioned relative to the radio-frequency transmit coil. The controller is configured to control the scanner to perform a scanning sequence on the object under detection to acquire image data. The scanning sequence includes a radio-frequency excitation stage, a signal acquisition stage, and an idle stage. In the radio-frequency excitation stage, the radio-frequency transmit chain transmits a first radio-frequency pulse to the radio-frequency transmit coil. The signal processor is configured to acquire scattering parameters of the radio-frequency transmit coil in real time, wherein in the radio-frequency excitation stage, a first radio-frequency power signal detected on a line between the radio-frequency transmit chain and the radio-frequency transmit coil is acquired in real time, and the scattering parameters are acquired on the basis of the signal; and at least one of breathing information and motion information of the object under detection is acquired on the basis of the scattering parameters.

    Balun assembly and magnetic resonance imaging system
    3.
    发明授权
    Balun assembly and magnetic resonance imaging system 有权

    公开(公告)号：US11513177B2

    公开(公告)日：2022-11-29

    申请号：US17304356

    申请日：2021-06-18

    Applicant: GE Precision Healthcare LLC

    Inventor： Sheng Tong ,  Yue Shang ,  Haoyang Xing ,  Zhuoyu Chen ,  Liya Ma

    IPC: G01R33/42 ,  G01R33/36 ,  G01R33/422

    Abstract: An embodiment of the present utility model relates to a balun assembly, including: an outer conductive tube body disposed around an electrical cable, the outer conductive tube body including a first portion and a second portion detachably connected to each other; a conductive connection member electrically connecting the outer conductive tube body to the electrical cable; and an insulative material disposed between the outer conductive tube body and the electrical cable. An embodiment of the present utility model further relates to a magnetic resonance device including the balun assembly.

    IMPEDANCE TUNER, MAGNETIC RESONANCE SYSTEM, TRANSMISSION APPARATUS, AND TRANSMISSION METHOD
    4.
    发明公开
    IMPEDANCE TUNER, MAGNETIC RESONANCE SYSTEM, TRANSMISSION APPARATUS, AND TRANSMISSION METHOD 审中-公开

    公开(公告)号：US20230337933A1

    公开(公告)日：2023-10-26

    申请号：US18194862

    申请日：2023-04-03

    Applicant: GE Precision Healthcare LLC

    Inventor： Jianye Ning ,  Xin Xie ,  Yu Liu ,  Chunlai Xiao ,  Sheng Tong ,  Dongliang Yang ,  Kai Wang

    IPC: A61B5/055 ,  A61B5/053

    CPC classification number: A61B5/055 ,  A61B5/053

    Abstract: An impedance tuner in a magnetic resonance system include at least one of an amplitude tuning circuit and a phase tuning circuit. The amplitude tuning circuit includes M serially-connected amplitude tuners. Each amplitude tuner includes at least one microwave transmission line and a first switch circuit connected in parallel, wherein the first switch circuit controls the at least one microwave transmission line to be in an on state or an off state, respectively, and the value of M is a positive integer greater than or equal to 1. The phase tuning circuit includes a phase tuner, and the phase tuner includes P second microwave transmission lines and a second switch circuit, wherein the second switch circuit controls the P second microwave transmission lines to be in an on state or an off state, respectively, and the value of P is a positive integer greater than or equal to 2.

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