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1. 发明申请

US20120013336A1 MAGNETIC RESONANCE IMAGING WITH IMPROVED IMAGING CONTRAST 失效
标题翻译：具有改进成像对比度的磁共振成像
公开(公告)号：US20120013336A1
公开(公告)日：2012-01-19
申请号：US13257091
申请日：2009-03-31
申请人： Stefan Hetzer , Toralf Mildner , Harald Moeller
发明人： Stefan Hetzer , Toralf Mildner , Harald Moeller
IPC分类号： G01R33/54 , G01R33/28
CPC分类号： G01R33/5616 , G01R33/4806 , G01R33/4818 , G01R33/482 , G01R33/4828 , G01R33/483 , G01R33/485 , G01R33/5607 , G01R33/56341 , G01R33/56366 , G01R33/56536 , G01R33/56554 , G01R33/56563
摘要： A method of magnetic resonance imaging of an object comprises the steps of arranging the object in a stationary magnetic field, subjecting the object to an excitation and encoding sequence of magnetic field gradients resulting in k-space sampling in two segments along the phase encoding direction, wherein the encoding sequence of the magnetic field gradients is selected such that the two segments in k-space are sampled along trajectories beginning with a central k-space line through the k-space center and continuing to opposite k-space borders of the two segments, collecting magnetic resonance signals created in the object, and reconstructing an image of the object based on the magnetic resonance signals, wherein one central k-space line is sampled in both of the two k-space segments, and intersegment phase and/or intensity deviations are corrected in both k-space segments using the magnetic resonance signals collected along the central k-space line. Furthermore, an imaging device for magnetic resonance imaging of an object is described.
摘要翻译：物体的磁共振成像的方法包括以下步骤：将物体放置在固定磁场中，使物体受到磁场梯度的激励和编码序列的影响，导致沿着相位编码方向的两段中的k空间采样，其中选择磁场梯度的编码序列使得k空间中的两个片段沿着通过k空间中心的中心k空间线开始的轨迹被采样，并且连续到两个片段的相反k空间边界收集在物体中产生的磁共振信号，以及基于磁共振信号重建物体的图像，其中一个中心k空间线在两个k空间段中的两个采样，并且分段相位和/或强度使用沿着中心k空间线收集的磁共振信号在两个k空间段中校正偏差。此外，描述了用于物体的磁共振成像的成像装置。

2. 发明授权

US08664954B2 Magnetic resonance imaging with improved imaging contrast 失效
标题翻译：磁共振成像具有改善的成像对比度
公开(公告)号：US08664954B2
公开(公告)日：2014-03-04
申请号：US13257091
申请日：2009-03-31
申请人： Stefan Hetzer , Toralf Mildner , Harald Moeller
发明人： Stefan Hetzer , Toralf Mildner , Harald Moeller
IPC分类号： G01V3/00
CPC分类号： G01R33/5616 , G01R33/4806 , G01R33/4818 , G01R33/482 , G01R33/4828 , G01R33/483 , G01R33/485 , G01R33/5607 , G01R33/56341 , G01R33/56366 , G01R33/56536 , G01R33/56554 , G01R33/56563
摘要： A method of magnetic resonance imaging of an object comprises the steps of arranging the object in a stationary magnetic field, subjecting the object to an excitation and encoding sequence of magnetic field gradients resulting in k-space sampling in two segments along the phase encoding direction, wherein the encoding sequence of the magnetic field gradients is selected such that the two segments in k-space are sampled along trajectories beginning with a central k-space line through the k-space center and continuing to opposite k-space borders of the two segments, collecting magnetic resonance signals created in the object, and reconstructing an image of the object based on the magnetic resonance signals, wherein one central k-space line is sampled in both of the two k-space segments, and intersegment phase and/or intensity deviations are corrected in both k-space segments using the magnetic resonance signals collected along the central k-space line. Furthermore, an imaging device for magnetic resonance imaging of an object is described.
摘要翻译：物体的磁共振成像的方法包括以下步骤：将物体放置在固定磁场中，使物体受到磁场梯度的激励和编码序列的影响，导致沿着相位编码方向的两段中的k空间采样，其中选择磁场梯度的编码序列使得k空间中的两个片段沿着通过k空间中心的中心k空间线开始的轨迹被采样，并且连续到两个片段的相反k空间边界收集在物体中产生的磁共振信号，以及基于磁共振信号重建物体的图像，其中一个中心k空间线在两个k空间段中的两个采样，并且分段相位和/或强度使用沿着中心k空间线收集的磁共振信号在两个k空间段中校正偏差。此外，描述了用于物体的磁共振成像的成像装置。

3. 发明申请

US20120313641A1 METHOD AND DEVICE FOR MAGNETIC RESONANCE SPECTROSCOPIC IMAGING 有权
标题翻译：用于磁共振光谱成像的方法和装置
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。

4. 发明授权

US09234953B2 Method and device for magnetic resonance spectroscopic imaging 有权
标题翻译：用于磁共振光谱成像的方法和装置
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。

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