公开(公告)号：US20130082702A1

公开(公告)日：2013-04-04

申请号：US13628938

申请日：2012-09-27

申请人： Jan Ole BLUMHAGEN ,  Matthias FENCHEL ,  Ralf LADEBECK ,  Harald H. QUICK

发明人： Jan Ole BLUMHAGEN ,  Matthias FENCHEL ,  Ralf LADEBECK ,  Harald H. QUICK

IPC分类号： G01R33/565 ,  G01R33/34

CPC分类号： G01R33/56563 ,  G01R33/481 ,  G01R33/4835 ,  G01R33/56383

摘要： A method is disclosed for acquiring magnetic resonance (MR) data for a plurality of layers of an object to be examined in a section of a magnetic resonance system having a basic magnetic field, wherein the section is located at the edge of a Field of View of the magnetic resonance system in the first direction. The method includes producing a first gradient field having a non-linearity of its location dependence in such a way that in the section the non-linearity compensates a local inhomogeneity of the basic magnetic field, and then multiple positioning of the object to be examined in a first direction, so the plurality of layers of the object to be examined perpendicular to the first direction successively includes the section. Finally, it includes the acquisition of magnetic resonance data for each of the layers with recording sequences.

摘要翻译： 公开了一种用于在具有基本磁场的磁共振系统的一部分中获取待检查对象的多层的磁共振（MR）数据的方法，其中该部分位于视场边缘 的磁共振系统在第一方向上。 该方法包括以这样的方式产生具有其位置依赖性的非线性的第一梯度场，使得在该截面中非线性补偿基本磁场的局部不均匀性，然后将被检查对象多次定位 第一方向，因此垂直于第一方向的要被检查物体的多层依次包括该部分。 最后，它包括用记录序列获取每个层的磁共振数据。

公开(公告)号：US20130197349A1

公开(公告)日：2013-08-01

申请号：US13747756

申请日：2013-01-23

申请人： Jan Ole BLUMHAGEN ,  Matthias FENCHEL ,  Ralf LADEBECK

发明人： Jan Ole BLUMHAGEN ,  Matthias FENCHEL ,  Ralf LADEBECK

IPC分类号： A61B6/00 ,  A61B6/03 ,  A61B5/055 ,  A61B5/00

CPC分类号： A61B6/5247 ,  A61B5/0035 ,  A61B5/0037 ,  A61B5/055 ,  A61B5/0555 ,  A61B5/4872 ,  A61B5/4875 ,  A61B5/72 ,  A61B6/037 ,  A61B6/4417 ,  A61B6/463 ,  A61B6/466 ,  A61B6/5217 ,  G01R33/481

摘要： A method is disclosed for calculating a spatially resolved value of an absorption parameter for a positron emission tomography (PET) scan of an examination object via magnetic resonance tomography (MRT). Magnetic resonance data is acquired within a first region lying within a field of view of a magnetic resonance system and within a second region bordering on the first and lying at the edge of the field of view. The method includes the spatially resolved calculation of a first value of the absorption parameter from the first MR data within the first region and of a second value from the second MR data within the second region. A three-dimensional parameter map is obtained from the first value. This parameter map is extended by the second value such that within the first region and the second region the parameter map has the value of the absorption parameter in spatially resolved form.

摘要翻译： 公开了一种用于通过磁共振断层摄影（MRT）计算检查对象的正电子发射断层摄影（PET）扫描的吸收参数的空间分辨值的方法。 磁共振数据在位于磁共振系统的视野内的第一区域内并且在与第一区域接合并位于视野边缘的第二区域内获取。 该方法包括从第一区域内的第一MR数据和第二区域内的第二MR数据的第二值的空间分辨计算吸收参数的第一值。 从第一个值获得三维参数图。 该参数图被扩展第二值，使得在第一区域和第二区域内参数图具有空间分辨形式的吸收参数的值。

公开(公告)号：US20100066373A1

公开(公告)日：2010-03-18

申请号：US12585311

申请日：2009-09-11

申请人： Thomas ARNOLD ,  Yvonne CANDIDUS ,  Thomas KUNDNER ,  Ralf LADEBECK

发明人： Thomas ARNOLD ,  Yvonne CANDIDUS ,  Thomas KUNDNER ,  Ralf LADEBECK

IPC分类号： G01R33/44

CPC分类号： G01R33/3415 ,  A61B6/037 ,  G01R33/3621 ,  G01R33/422 ,  G01R33/481

摘要： A local coil facility is disclosed for a magnetic resonance tomography apparatus for examining an examination object. In at least one embodiment, the local coil facility includes at least one electronic processing system, a high frequency antenna, and an antenna housing to cover the high-frequency antenna and the at least one electronic processing system, the antenna housing having at least one wall close to the object and at least one wall away from the object. To reduce or even minimize the attenuation of PET radiation in a combined MR/PET device and thus in particular to ensure a better signal to noise ratio for the PET measurement, it is proposed according to at least one embodiment of the invention that the surfaces of the wall away from the object are essentially tangential to the examination object.

摘要翻译： 公开了用于检查检查对象的磁共振断层摄影装置的局部线圈设备。 在至少一个实施例中，本地线圈设备包括至少一个电子处理系统，高频天线和覆盖高频天线和至少一个电子处理系统的天线外壳，天线壳体具有至少一个 靠近物体的墙壁和远离物体的至少一个墙壁。 为了减少或甚至最小化组合MR / PET装置中的PET辐射的衰减，并且因此特别地确保PET测量的更好的信噪比，根据本发明的至少一个实施方案提出， 远离物体的墙基本上与检查对象相切。