首页> 外国专利> A method for magnetic resonance - imaging by means of a partial parallel acquisition art in the case of not - of the cartesian occupancy of the k - space

A method for magnetic resonance - imaging by means of a partial parallel acquisition art in the case of not - of the cartesian occupancy of the k - space

机译:一种用于磁共振的方法-在k空间的笛卡尔不占用的情况下,通过部分并行采集技术进行成像

摘要

A method for magnetic resonance - imaging by means of a partial parallel acquisition art in the case of not - of the cartesian occupancy of the k - space with a plurality of magnetic in order for the reception of an image field (7) arranged around the antennas (12.1, 12.2, 12.3, 12,4) and with a location of the magnetic resonance signals in the image field (7) by means of magnetic gradient fields in such a way that the k - space only incompletely by means of at least one around the origin of the k - space (26) extending trajectory (24) is coated with magnetic, characterised in that from the received signals of each antenna in the k - space on in each case one from the origin (26) extending line segment (p1, p2, p3, p4), and absence of the sampling values (32) which is also made on the straight line (p1, p2, p3, p4) lying sampling values (34) of the trajectory (24) according to a weighting with weighting factors (w) are determined, so that the k - space is completely occupied, that from the completely covered k - space by means of a fourier - transformation (42) a partial image (44) of the imaging region (7) is generated and that from the fields (44) an image (46) of the image area..
机译:一种用于磁共振的方法-在k空间的笛卡尔空间不具有多个磁场的情况下,通过部分并行采集技术进行成像,以便接收布置在磁场周围的像场(7)。天线(12.1、12.2、12.3、12,4),并借助磁梯度场将磁共振信号定位在像场(7)中,使得至少仅通过至少一个不完全的k空间围绕k-空间(26)延伸轨迹(24)的原点的一个覆盖有磁性,其特征在于,根据k-空间中每个天线的接收信号,在每种情况下,来自k-空间(26)延伸线的一个线段(p1,p2,p3,p4),并且不存在采样值(32),也根据轨迹(24)的采样值(34)在直线(p1,p2,p3,p4)上得出确定具有权重因子(w)的权重,从而完全占据k-空间通过傅立叶变换(42)完全覆盖k空间,生成成像区域(7)的部分图像(44),并且从场(44)生成图像区域的图像(46)。

著录项

  • 公开/公告号DE102004024459B4

    专利类型

  • 公开/公告日2007-09-20

    原文格式PDF

  • 申请/专利权人

    申请/专利号DE20041024459

  • 发明设计人

    申请日2004-05-14

  • 分类号G01R33/56;G01R33/565;

  • 国家 DE

  • 入库时间 2022-08-21 20:30:04

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