公开(公告)号：US6134464A

公开(公告)日：2000-10-17

申请号：US12509

申请日：1998-01-23

申请人： Gousheng Tan ,  Matthew A. Bernstein ,  Steven M. Metcalfe

发明人： Gousheng Tan ,  Matthew A. Bernstein ,  Steven M. Metcalfe

IPC分类号： G01R33/48 ,  A61B5/055 ,  G01R33/54

CPC分类号： G01R33/4833 ,  G01R33/4835

摘要： A fast spin echo (FSE) pulse sequence is employed to perform a multi-slice, multi-angle MRI scan. The slices are scanned in groups, with all the slices in each group being oriented at the same angle and sampled in an interleaved manner. Total scan time is reduced by acquiring multiple, separately phase encoded echo signals during each FSE pulse sequence. Presaturation bands may be produced for each group of slices to reduce flow artifacts in the reconstructed slice images.

摘要翻译： 采用快速自旋回波（FSE）脉冲序列进行多层多角度MRI扫描。 切片按组扫描，每组中的所有切片以相同的角度取向并以交错方式进行采样。 通过在每个FSE脉冲序列期间获取多个单独相位编码的回波信号来减少总扫描时间。 可以为每组切片产生预饱和带，以减少重建切片图像中的流动伪影。