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    System and method for reducing acoustic noise level in MR imaging
    3.
    发明授权
    System and method for reducing acoustic noise level in MR imaging 有权

    公开(公告)号：US10816623B2

    公开(公告)日：2020-10-27

    申请号：US16161401

    申请日：2018-10-16

    Applicant: GENERAL ELECTRIC COMPANY

    Inventor： Dawei Gui ,  Anton M. Linz ,  Ajeetkumar Gaddipati ,  Xiaoli Zhao ,  Shaorong Chang ,  Donglai Huo

    IPC: G01R33/38 ,  G01R33/385 ,  G01R33/48 ,  G01R33/561

    Abstract: A system and method for reducing MRI-generated acoustic noise is disclosed. A system control of an MRI apparatus causes a plurality of gradient coils and an RF coil assembly in the MRI apparatus to generate pulse sequences that each cause an echo train to form and acquire blades of k-space data of the subject of interest from the pulse sequences, with the blades being rotated about a section of k-space compared to every other blade. The system control also causes the plurality of gradient coils to generate gradient pulses in each pulse sequence having an optimized gradient waveform that reduces an acoustic noise level generated thereby and causes the RF coil assembly to generate a 180 degree prep pulse subsequent to generation of an RF excitation pulse and prior to generation of a first RF refocusing pulse, the 180 degree prep pulse minimizing echo spacing in the echo train.

    System and method for reducing acoustic noise level in MR imaging
    4.
    发明授权
    System and method for reducing acoustic noise level in MR imaging 有权

    公开(公告)号：US10132889B2

    公开(公告)日：2018-11-20

    申请号：US13899691

    申请日：2013-05-22

    Applicant: General Electric Company

    Inventor： Dawei Gui ,  Anton M. Linz ,  Ajeetkumar Gaddipati ,  Xiaoli Zhao ,  Shaorong Chang ,  Donglai Huo

    IPC: G01R33/385 ,  G01R33/48 ,  G01R33/561

    Abstract: A system and method for reducing MRI-generated acoustic noise is disclosed. A system control of an MRI apparatus causes a plurality of gradient coils and an RF coil assembly in the MRI apparatus to generate pulse sequences that each cause an echo train to form and acquire blades of k-space data of the subject of interest from the pulse sequences, with the blades being rotated about a section of k-space compared to every other blade. The system control also causes the plurality of gradient coils to generate gradient pulses in each pulse sequence having an optimized gradient waveform that reduces an acoustic noise level generated thereby and causes the RF coil assembly to generate a 180 degree prep pulse subsequent to generation of an RF excitation pulse and prior to generation of a first RF refocusing pulse, the 180 degree prep pulse minimizing echo spacing in the echo train.

    SYSTEM AND METHOD FOR REDUCING ACOUSTIC NOISE LEVEL IN MR IMAGING
    6.
    发明申请
    SYSTEM AND METHOD FOR REDUCING ACOUSTIC NOISE LEVEL IN MR IMAGING 审中-公开

    公开(公告)号：US20190049536A1

    公开(公告)日：2019-02-14

    申请号：US16161401

    申请日：2018-10-16

    Applicant: GENERAL ELECTRIC COMPANY

    Inventor： Dawei Gui ,  Anton M. Linz ,  Ajeetkumar Gaddipati ,  Xiaoli Zhao ,  Shaorong Chang ,  Donglai Huo

    IPC: G01R33/385 ,  G01R33/48

    CPC classification number: G01R33/3854 ,  G01R33/4824 ,  G01R33/4826 ,  G01R33/5617

    Abstract: A system and method for reducing MRI-generated acoustic noise is disclosed. A system control of an MRI apparatus causes a plurality of gradient coils and an RF coil assembly in the MRI apparatus to generate pulse sequences that each cause an echo train to form and acquire blades of k-space data of the subject of interest from the pulse sequences, with the blades being rotated about a section of k-space compared to every other blade. The system control also causes the plurality of gradient coils to generate gradient pulses in each pulse sequence having an optimized gradient waveform that reduces an acoustic noise level generated thereby and causes the RF coil assembly to generate a 180 degree prep pulse subsequent to generation of an RF excitation pulse and prior to generation of a first RF refocusing pulse, the 180 degree prep pulse minimizing echo spacing in the echo train.

    SYSTEM AND METHOD FOR REDUCING ACOUSTIC NOISE LEVEL IN MR IMAGING
    7.
    发明申请
    SYSTEM AND METHOD FOR REDUCING ACOUSTIC NOISE LEVEL IN MR IMAGING 审中-公开
    用于降低成像噪声噪声水平的系统和方法

    公开(公告)号：US20140347050A1

    公开(公告)日：2014-11-27

    申请号：US13899691

    申请日：2013-05-22

    Applicant: GENERAL ELECTRIC COMPANY

    Inventor： Dawei Gui ,  Anton M. Linz ,  Ajeetkumar Gaddipati ,  Xiaoli Zhao ,  Shaorong Chang ,  Donglai Huo

    IPC: G01R33/385

    CPC classification number: G01R33/3854 ,  G01R33/4824 ,  G01R33/4826 ,  G01R33/5617

    Abstract: A system and method for reducing MRI-generated acoustic noise is disclosed. A system control of an MRI apparatus causes a plurality of gradient coils and an RF coil assembly in the MRI apparatus to generate pulse sequences that each cause an echo train to form and acquire blades of k-space data of the subject of interest from the pulse sequences, with the blades being rotated about a section of k-space compared to every other blade. The system control also causes the plurality of gradient coils to generate gradient pulses in each pulse sequence having an optimized gradient waveform that reduces an acoustic noise level generated thereby and causes the RF coil assembly to generate a 180 degree prep pulse subsequent to generation of an RF excitation pulse and prior to generation of a first RF refocusing pulse, the 180 degree prep pulse minimizing echo spacing in the echo train.

    Abstract translation: 公开了一种用于减少MRI产生的声学噪声的系统和方法。 MRI装置的系统控制使得MRI装置中的多个梯度线圈和RF线圈组件产生脉冲序列，每个脉冲序列使得回波序列从脉冲形成并获取感兴趣对象的k空间数据的叶片 序列，与每个其他叶片相比，叶片围绕k空间的一部分旋转。 系统控制还使得多个梯度线圈在具有优化的梯度波形的每个脉冲序列中产生梯度脉冲，其减小由此产生的声学噪声电平，并且使得RF线圈组件在产生RF之后产生180度预制脉冲 激发脉冲，并且在产生第一RF再聚焦脉冲之前，180度准备脉冲使回波列中的回波间隔最小化。

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