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    • 58. 发明公开
    • 자기공명영상장치 및 그 제조방법
    • 磁共振成像装置及其制造方法
    • KR1020140039514A
    • 2014-04-02
    • KR1020120105718
    • 2012-09-24
    • 삼성전자주식회사
    • 최승제박동근황규완
    • A61B5/055
    • G01R33/28G01R33/0052G01R33/3802G01R33/381G01R33/3858G01R33/56518Y10T29/49004
    • Provided are a magnetic resonance imaging device where a conductor is prepared in a space between a magnetostatic coil part and a tilt coil part in order to form the symmetric distribution of an eddy current by removing the asymmetric property of the eddy current induced in the magnetostatic coil part. The magnetic resonance imaging device includes a magnetostatic coil part which forms a static magnetic field in an object, a tilt coil part which forms a tilt magnetic field in the static magnetic field, and at least one conductor which is prepared between the magnetostatic coil part and the tilt coil part in order to symmetrically distribute the eddy current which is induced in the magnetostatic coil part, in the magnetostatic coil part.
    • 提供了一种磁共振成像装置,其中在静磁线圈部分和倾斜线圈部分之间的空间中制备导体,以便通过去除在静磁线圈中感应的涡流的不对称性质来形成涡流的对称分布 部分。 磁共振成像装置包括在物体中形成静磁场的静磁线圈部分,在静磁场中形成倾斜磁场的倾斜线圈部分,以及制备在静磁线圈部分和 倾斜线圈部分,以将在静磁线圈部分中感应的涡流对称地分布在静磁线圈部分中。
    • 60. 发明申请
    • GRADIENT COIL ASSEMBLY WITH OUTER COILS COMPRISING ALUMINUM
    • 梯形线圈组件带有包含铝的外部线圈
    • WO2014162233A2
    • 2014-10-09
    • PCT/IB2014/060015
    • 2014-03-21
    • KONINKLIJKE PHILIPS N.V.
    • HAM, Cornelis Leonardus Gerardus
    • H01F6/06
    • G01R33/3856G01R33/3858H01F6/06
    • The present invention provides a gradient coil assembly (122) for use in a magnetic resonance imaging system (110) comprising a set of inner coils (142) and a set of outer coils (144), which are concentrically arranged in respect to a common rotational axis of the set of inner and outer coils (142, 144), wherein the set of inner coils (142) and a set of outer coils (144) can be controlled to generate gradient magnetic fields within an inner space of the gradient coil assembly (122), and at least one coil (152, 154, 156) of the set of outer coils (144) is at least partially made of aluminum. The present invention further provides a magnetic resonance (MR) imaging system (110) comprising the above magnetic gradient coil assembly (122). By replacing at least a part of one coil of the outer coils by aluminum, the gradient coil assembly (122) can be significantly improved in respect to cost and weight without reducing the accuracy in respect to the generation of diagnostic images based on magnetic resonance information. Accordingly, the outcome of an MR scan is not reduced. The outer coils usually contain about half the weight of the copper used for state of the art gradient coil assemblies.
    • 本发明提供了一种用于包括一组内线圈(142)和一组外线圈(144)的磁共振成像系统(110)中的梯度线圈组件(122),其 相对于所述一组内部和外部线圈(142,144)的公共旋转轴线同心地布置,其中所述一组内部线圈(142)和一组外部线圈(144)可被控制以产生梯度磁场 在梯度线圈组件(122)的内部空间内,并且该组外部线圈(144)中的至少一个线圈(152,154,156)至少部分地由铝制成。 本发明还提供了一种包括上述磁梯度线圈组件(122)的磁共振(MR)成像系统(110)。 通过用铝来替换外部线圈中的一个线圈的至少一部分,梯度线圈组件(122)在成本和重量方面可以显着提高,而不降低基于磁共振信息的诊断图像的生成的精度 。 因此,MR扫描的结果不会降低。 外部线圈通常包含用于现有技术梯度线圈组件的铜重量的约一半。