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88 条记录 (耗时 0.021 秒)

    METHOD AND SYSTEM FOR DETERMINING A POSITION OF A PORTABLE MRI SYSTEM
    2.
    发明公开
    METHOD AND SYSTEM FOR DETERMINING A POSITION OF A PORTABLE MRI SYSTEM 审中-公开

    公开(公告)号：EP4390430A1

    公开(公告)日：2024-06-26

    申请号：EP22215566.5

    申请日：2022-12-21

    申请人： Koninklijke Philips N.V.

    发明人： WEISS, Steffen ,  LEUSSLER, Christoph Günther ,  VOGTMEIER, Gereon ,  JOHNSON, Mark Thomas

    IPC分类号： G01R33/38 ,  G01R33/24 ,  G01R33/42 ,  G01R33/44 ,  G01R33/02 ,  G01R33/10 ,  G01R33/28 ,  G01R33/381 ,  G01R33/028

    CPC分类号： G01R33/42 ,  G01R33/445 ,  G01R33/3802 ,  G01R33/28 ,  G01R33/381 ,  G01R33/025 ,  G01R33/5659 ,  G01R33/56563

    摘要： Influence of RF noise and external magnetic field on the image quality of a portable magnetic resonance imaging (MRI) system (1) are to be avoided. This is achieved by providing a system and a computer-implemented method for determining an optimized position and/or orientation of a portable MRI system (1) for an MR imaging process in a medical environment (2), comprising at least one RF noise sensor (3), wherein the RF noise sensor (3) is configured for measuring RF noise in the medical environment (2) and to provide sensor data, at least one magnetic field sensor (4), wherein the magnetic field sensor (4) is configured to measure the external magnetic field in the medical environment (2) and to provide sensor data, a processor unit (5), wherein the sensors (3, 4) are connected to the processor unit (5), the processor unit (5) comprising at least one memory (6) for storing instructions, at least one processor (7) configured to execute the instructions to cause the following to be performed: measuring RF noise and the external magnetic field in the medical environment by means of corresponding sensors (3, 4), evaluating the sensor data and creating spatial distributions of the measured RF noise and/or the measured external magnetic field in the medical environment (2), determining a position and/or orientation of the portable MRI system (1) in the medical environment (2) for an MR imaging process based on the spatial distributions of the measured RF noise and/or the measured external magnetic field.

    MODULAR MRI MACHINE
    4.
    发明公开
    MODULAR MRI MACHINE 审中-公开

    公开(公告)号：EP4257999A1

    公开(公告)日：2023-10-11

    申请号：EP22305447.9

    申请日：2022-04-04

    申请人： Renaissance Fusion

    发明人： VOLPE, Francesco

    IPC分类号： G01R33/38 ,  G01R33/381 ,  G01R33/3815 ,  H01F6/06

    摘要： The present disclosure relates to a modular magnetic resonance imaging machine comprising an assembly of a plurality of modules (100) coupled to each other, wherein the modules have shapes and/or sizes adapted to the shape of the assembly, each module (100) is adapted to conduct current in order to form a magnetic field, and has a first structural section (106) assembled with a second structural section (102), the first structural section having a groove (202) separating the module into at least two different electrically conducting regions.

    MAGNETIC SOLENOID FOR GENERATING A SUBSTANTIALLY UNIFORM MAGNETIC FIELD
    8.
    发明授权
    MAGNETIC SOLENOID FOR GENERATING A SUBSTANTIALLY UNIFORM MAGNETIC FIELD 有权

    公开(公告)号：EP2724353B1

    公开(公告)日：2018-11-14

    申请号：EP12802924.6

    申请日：2012-06-15

    申请人： Northrop Grumman Guidance And Electronic Company, Inc.

    发明人： BULATOWICZ, Michael, D.

    IPC分类号： H01F7/08 ,  G01C19/60 ,  H01F5/00 ,  G01R33/381 ,  H01F7/20

    摘要： One embodiment of the invention includes a magnetic solenoid. The magnetic solenoid includes an elongated sidewall that extends along and surrounds a central axis between spaced apart ends. The central axis can include a center point that is approximately equidistant from the spaced apart ends. The magnetic solenoid also includes a conductive coil that extends along and conforms to the elongated sidewall and comprises a plurality of consecutive loops centered on the central axis. The plurality of consecutive loops can have a consecutive loop-spacing that is non-uniform along the central axis and having a substantial maximum spacing value at approximately the center point.