发明名称 Magnetic resonance imaging method and apparatus with spatial coding using readout segmentation
摘要 In a method and apparatus for magnet resonance imaging, and RF excitation pulse is emitted for the excitation of spins in an object to be examined and simultaneously a slice-selection gradient is activated during the RF excitation pulse, a pulse series of refocusing pulses is emitted, a slice-selection gradient pulse is activated during each refocusing pulse, and alternating readout gradient pulse series are activated, each series being in the pulse between two refocusing pulses, with a de-phasing pulse being activated immediately before each readout gradient pulse series and a re-phasing pulse being activated immediately after the each readout gradient pulse series such that a corresponding offset is produced in the readout direction so that each readout gradient pulse series scans a part of the k-matrix in the k<SUB>x </SUB>direction in a serpentine-like manner, with the serpentine-like scanning of each partial section being implemented by activating short phase-coding gradient pulses during each zero point of the corresponding readout-gradient pulse series.
申请公布号 US6946839(B2) 申请公布日期 2005.09.20
申请号 US20040830511 申请日期 2004.04.23
申请人 SIEMENS AKTIENGESELLSCHAFT 发明人 PORTER DAVID ANDREW
分类号 G01R33/561;(IPC1-7):G01V3/00 主分类号 G01R33/561
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