公开(公告)号：US20120313641A1

公开(公告)日：2012-12-13

申请号：US13522696

申请日：2010-01-18

申请人： Christian Labadie ,  Stefan Hetzer ,  Toralf Mildner ,  Harald Moeller

发明人： Christian Labadie ,  Stefan Hetzer ,  Toralf Mildner ,  Harald Moeller

IPC分类号： G01R33/56 ,  G01R33/34

CPC分类号： G01R33/485 ,  G01R33/4818 ,  G01R33/482 ,  G01R33/5611 ,  G01R33/5616

摘要： A method of magnetic resonance spectroscopic imaging of an object (O) including at least one chemical species to be imaged, comprising sampling of the k-space such that a plurality of Nω first sampling trajectories through at least one k-space segment of the k-space is formed along a phase-encoding direction, each of said first sampling trajectories beginning in a central k-space region and continuing to a k-space border of the at least one k-space segment and having a duration equal to or below a spectral dwell time corresponding to the reciprocal spectral bandwidth, collecting at least one first set of gradient-echo signals obtained along said first sampling trajectories, collecting at least one second set of gradient-echo signals obtained along a plurality of Nω second sampling trajectories, said Nω second sampling trajectories and said Nω first sampling trajectories being mutually mirrored relative to a predetermined k-space line in the central k-space region.

摘要翻译： 包括至少一种待成像化学物质的物体（O）的磁共振光谱成像方法，包括k空间的采样，使得多个Nω第一采样轨迹通过k的至少一个k空间段 - 空间沿着相位编码方向形成，所述第一采样轨迹中的每一个从中心k空间区域开始并且连续至少一个k空间段的k空间边界并具有等于或低于 收集对应于所述倒数光谱带宽的光谱驻留时间，收集沿着所述第一采样轨迹获得的至少一个第一梯度回波信号集合，收集沿着多个Nω第二采样轨迹获得的至少一个第二组梯度回波信号， 所述Nω第二采样轨迹和所述Nω第一采样轨迹相对于中心k空间区域中的预定k空间线相互镜像。

公开(公告)号：US09234953B2

公开(公告)日：2016-01-12

申请号：US13522696

申请日：2010-01-18

申请人： Christian Labadie ,  Stefan Hetzer ,  Toralf Mildner ,  Harald Moeller

发明人： Christian Labadie ,  Stefan Hetzer ,  Toralf Mildner ,  Harald Moeller

IPC分类号： G01R33/56 ,  G01R33/34 ,  G01R33/485 ,  G01R33/48 ,  G01R33/561

CPC分类号： G01R33/485 ,  G01R33/4818 ,  G01R33/482 ,  G01R33/5611 ,  G01R33/5616

摘要： A method of magnetic resonance spectroscopic imaging of an object (O) including at least one chemical species to be imaged, comprising sampling of the k-space such that a plurality of Nω first sampling trajectories through at least one k-space segment of the k-space is formed along a phase-encoding direction, each of said first sampling trajectories beginning in a central k-space region and continuing to a k-space border of the at least one k-space segment and having a duration equal to or below a spectral dwell time corresponding to the reciprocal spectral bandwidth, collecting at least one first set of gradient-echo signals obtained along the first sampling trajectories, collecting at least one second set of gradient-echo signals obtained along a plurality of Nω second sampling trajectories, the Nω second sampling trajectories and the Nω first sampling trajectories being mutually mirrored relative to a predetermined k-space line in the central k-space region.

摘要翻译： 包括至少一种待成像化学物质的物体（O）的磁共振光谱成像方法，包括k空间的采样，使得多个Nω第一采样轨迹通过k的至少一个k空间段 - 空间沿着相位编码方向形成，所述第一采样轨迹中的每一个从中心k空间区域开始并且连续至少一个k空间段的k空间边界并具有等于或低于 收集对应于所述倒数光谱带宽的光谱驻留时间，收集沿着所述第一采样轨迹获得的至少一个第一梯度回波信号集合，收集沿着多个Nω第二采样轨迹获得的至少一个第二组梯度回波信号， Nω第二采样轨迹和Nω第一采样轨迹相对于中心k空间区域中的预定k空间线相互镜像。