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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
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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
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摘要
The invention relates to 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 activated with magnetic from received signals of each antenna in the k - space are in each case on an 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) is determined. This in such a way that the k - space is completely occupied. From the completely k - space is occupied by means of a fourier - transformation (42) a partial image (44) of the imaging region (7) is produced from the fields (44), an image (46) of the imaging region (7) generates.
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