公开(公告)号：US20130320973A1

公开(公告)日：2013-12-05

申请号：US13483454

申请日：2012-05-30

申请人： Matthias Fenchel ,  Kirstin Jattke ,  Jun Bao ,  Alto Stemmer ,  William Curtis Howe

发明人： Matthias Fenchel ,  Kirstin Jattke ,  Jun Bao ,  Alto Stemmer ,  William Curtis Howe

IPC分类号： G01T1/164 ,  G01R33/48

CPC分类号： A61B5/055 ,  A61B5/0035 ,  A61B5/7285 ,  A61B6/037 ,  A61B6/4417 ,  A61B6/5205 ,  A61B6/5247 ,  A61B6/5258 ,  A61B6/5264 ,  A61B6/527 ,  A61B6/5288 ,  A61B6/548 ,  G01R33/481

摘要： Various embodiments relate to a method of attenuation correction of Positron Emission Tomography (PET) data based on Magnetic Resonance Tomography (MRT) data. A method of at least one embodiment further includes determining further data being indicative of an iterative cycle of a physiological observable of a patient and matching the PET data with the MRT data based on the further data.

摘要翻译： 各种实施方案涉及基于磁共振层析成像（MRT）数据的正电子发射断层扫描（PET）数据的衰减校正方法。 至少一个实施例的方法还包括确定指示患者的生理可观察的迭代循环的另外的数据，并且基于进一步的数据将PET数据与MRT数据进行匹配。

公开(公告)号：US09392958B2

公开(公告)日：2016-07-19

申请号：US13483454

申请日：2012-05-30

申请人： Matthias Fenchel ,  Kirstin Jattke ,  Jun Bao ,  Alto Stemmer ,  William Curtis Howe

发明人： Matthias Fenchel ,  Kirstin Jattke ,  Jun Bao ,  Alto Stemmer ,  William Curtis Howe

IPC分类号： A61B5/055 ,  A61B5/00 ,  A61B6/03 ,  A61B6/00 ,  G01R33/48

CPC分类号： A61B5/055 ,  A61B5/0035 ,  A61B5/7285 ,  A61B6/037 ,  A61B6/4417 ,  A61B6/5205 ,  A61B6/5247 ,  A61B6/5258 ,  A61B6/5264 ,  A61B6/527 ,  A61B6/5288 ,  A61B6/548 ,  G01R33/481

摘要： Various embodiments relate to a method of attenuation correction of Positron Emission Tomography (PET) data based on Magnetic Resonance Tomography (MRT) data. A method of at least one embodiment further includes determining further data being indicative of an iterative cycle of a physiological observable of a patient and matching the PET data with the MRT data based on the further data.

摘要翻译： 各种实施方案涉及基于磁共振层析成像（MRT）数据的正电子发射断层扫描（PET）数据的衰减校正方法。 至少一个实施例的方法还包括确定指示患者的生理可观察的迭代循环的另外的数据，并且基于进一步的数据将PET数据与MRT数据进行匹配。

公开(公告)号：US09476958B2

公开(公告)日：2016-10-25

申请号：US13422227

申请日：2012-03-16

申请人： Alto Stemmer

发明人： Alto Stemmer

IPC分类号： G01R33/48 ,  G01R33/34 ,  G01R33/563 ,  A61B5/055 ,  G01R33/58

CPC分类号： G01R33/56383 ,  A61B5/055 ,  G01R33/586

摘要： In a method to determine the actual flip angle in magnetic resonance tomography with continuous table feed, at least one echo signal is generated by a pulse sequence from which an actual flip angle is produced with at least one RF pulse of the sequence, and a gradient scheme is used in the direction of the continuous travel of the examination subject, the gradient scheme being designed such that its first moment disappears at the points in time of each echo signals used for the determination of the flip angle. Such a pulse sequence is also used in a method for adjustment of the transmitter voltage for RF pulses given continuous travel of the examination subject in a magnetic resonance apparatus.

摘要翻译： 在用连续台式进给确定磁共振断层摄影术中的实际翻转角的方法中，通过脉冲序列产生至少一个回波信号，从脉冲序列产生具有该序列的至少一个RF脉冲的实际翻转角， 方案用于检查对象的连续行进的方向，梯度方案被设计为使得其第一时刻在用于确定翻转角的每个回波信号的时间点消失。 这样的脉冲序列也用于在磁共振设备中​​给予检查对象的连续行进的RF脉冲的发射器电压的调节方法中。

公开(公告)号：US20130281823A1

公开(公告)日：2013-10-24

申请号：US13866302

申请日：2013-04-19

申请人： Alto Stemmer

发明人： Alto Stemmer

IPC分类号： A61B5/055

CPC分类号： A61B5/055 ,  A61B5/0037 ,  A61B5/113 ,  A61B5/7207 ,  G01R33/4818 ,  G01R33/5676

摘要： In a method and apparatus to acquire a measurement data set of a breathing examination subject by magnetic resonance, the measurement data set is acquired in multiple shots each composed of a number of k-space trajectories (views), with the number Nv of views per shot being selected. The number of shots is determined in order to completely fill k-space to be scanned. The views of the shots are associated with sectors in k-space, such that approximately the same number of views are arranged in each sector, and such that all views in a sector have a similar distance from the k-space center. A respective view of each sector is associated with a respective one of the shots, corresponding to the orientation of the respective shot in the kz-ky plane. The views of each shot are scanned such that views that are associated with the same sector and different shots respectively assume the same time position within the shot.

摘要翻译： 在通过磁共振获取呼吸检查对象的测量数据集的方法和装置中，以多个k空间轨迹（视图）组成的多次拍摄获取测量数据集，每个视图数为Nv 被选中。 确定拍摄次数以便完全填充待扫描的k空间。 拍摄的视图与k空间中的扇区相关联，使得在每个扇区中布置大致相同数量的视图，并且使得扇区中的所有视图具有与k空间中心相似的距离。 每个扇区的相应视图与对应于kz-ky平面中的各个镜头的取向的相应的一个镜头相关联。 扫描每个镜头的视图，使得与相同扇区和不同镜头相关联的视图分别在镜头内假定相同的时间位置。

公开(公告)号：US08294462B2

公开(公告)日：2012-10-23

申请号：US12555121

申请日：2009-09-08

申请人： Alto Stemmer

发明人： Alto Stemmer

IPC分类号： G01V3/00

CPC分类号： G01R33/56375 ,  G01R33/4824 ,  G01R33/56383 ,  G01R33/56563 ,  G01R33/56572

摘要： In a method and magnetic resonance (MR) for reduction and correction of image distortions that occur in the generation of MR images of an examination subject that is arranged on a table that is continuously driven through the MR system during the generation of the MR images and whose cause is the acquisition of MR data of an image at varying positions within the MR system, raw MR data are acquired in multiple segments with radial filling of k-space with the raw data, an intersection region in the k-space center is determined that is covered by multiple segments given the radial filling of the raw data in k-space, and the distortions are automatically calculated based on the intersection region of at least two different segments.

摘要翻译： 在用于减少和校正在生成MR图像期间被布置在连续地通过MR系统的驱动器上的检查对象的MR图像的生成中发生的图像失真的方法和磁共振（MR）中，以及 其原因是在MR系统内的变化位置处获取图像的MR数据，在具有原始数据的k空间的径向填充的多个段中获取原始MR数据，确定k空间中心的交叉区域 由于在k空间中原始数据的径向填充，被多个段覆盖，并且基于至少两个不同段的交集区域自动计算失真。

公开(公告)号：US20110152668A1

公开(公告)日：2011-06-23

申请号：US12953805

申请日：2010-11-24

申请人： Alto Stemmer

发明人： Alto Stemmer

IPC分类号： A61B5/055

CPC分类号： G01R33/5676 ,  A61B5/055 ,  A61B5/7257

摘要： In a method for the detection of signal data corresponding to a breathing movement of an examination subject by means of magnetic resonance (MR) first and second data sets are loaded, that each include complex k-space data acquired with a navigator sequence from a common excitation volume of the examination subject. The first and second data sets are processed to identify breathing movement at the acquisition time of at least one of the data sets, by comprising a transformation of the data sets in Cartesian space and calculating a phase difference between respective complex data pointes of the data sets having the same spatial position. The processing result is stored together with a time value that depends on a point in time of the acquisition of the first data set and/or the second data set. The data acquisition, processing and storage are repeated until a series of results has been stored that maps a breathing movement of interest, and in repetition at least one of the two data sets is acquired at a different point in time than the last two data sets.

摘要翻译： 在用于通过磁共振（MR）检测与检查对象的呼吸运动相对应的信号数据的方法中，第一和第二数据集被加载，每一个包括用公共的导航序列获取的复杂k空间数据 检查科的激发体积。 处理第一和第二数据集以在至少一个数据集的采集时间识别呼吸运动，包括在笛卡尔空间中的数据集的变换，并且计算数据集的各个复数据点之间的相位差 具有相同的空间位置。 处理结果与取决于获取第一数据集和/或第二数据集的时间点的时间值一起存储。 重复数据采集，处理和存储，直到存储映射感兴趣的呼吸运动的一系列结果，并且在重复中，在与最后两个数据集不同的时间点上获取两个数据集中的至少一个 。

公开(公告)号：US20090069668A1

公开(公告)日：2009-03-12

申请号：US12203283

申请日：2008-09-03

申请人： Alto Stemmer

发明人： Alto Stemmer

IPC分类号： A61B5/055 ,  G06K9/00

CPC分类号： G06T5/50 ,  A61B5/0456 ,  A61B5/055 ,  A61B5/7285 ,  G01R33/5635 ,  G01R33/5673 ,  G06T7/0012 ,  G06T7/11 ,  G06T7/174 ,  G06T2207/10088 ,  G06T2207/20224 ,  G06T2207/30101

摘要： In a method and magnetic resonance MR system for the optimization of angiographic MR images of an examination subject, in which arteries can be presented separately from veins in the angiographic magnetic resonance images, multiple MR overview images are acquired, with at least one imaging parameter being varied in the acquisitions of the MR overview images, at least one optimized imaging parameter is automatically calculated using a quality criterion, and the optimized imaging parameter is provided for the acquisition of the angiographic magnetic resonance images in which arteries can be shown separately from the veins.

摘要翻译： 在用于优化检查对象的血管造影MR图像的方法和磁共振MR系统中，其中动脉可以与血管造影磁共振图像中的静脉分开呈现，获取多个MR概述图像，其中至少一个成像参数为 在MR概览图像的获取中有所不同，使用质量标准自动计算至少一个优化的成像参数，并且提供优化的成像参数用于采集血管造影磁共振图像，其中可以与静脉分开显示动脉 。

公开(公告)号：US07051286B1

公开(公告)日：2006-05-23

申请号：US09710903

申请日：2000-11-14

申请人： Alto Stemmer ,  Rainer Kaim ,  Thomas Kluge

发明人： Alto Stemmer ,  Rainer Kaim ,  Thomas Kluge

IPC分类号： G06G9/00

CPC分类号： G16H40/63 ,  G06F19/00 ,  G06F19/325 ,  G16H50/20

摘要： In a method for altering a protocol in a magnetic resonance apparatus a first parameter for the protocol and a second parameter for the protocol are displayed in a user interface display presentation. In this display presentation, a range of values for the first parameter is shown, including designation of a first sub-range within the range wherein selection of a value for the first parameter does not modify the second parameter, and designation of a second sub-range wherein selection of a value for the first parameter causes modification of the second parameter. If a value for the first parameter is selected in the second sub-range, the display presentation automatically shows how the value selected for the first parameter will modify the second parameter. The user is given an option, via the user interface to confirm selection of the value for the first parameter, or to reject it.

摘要翻译： 在用于改变磁共振装置中的协议的方法中，在用户界面显示呈现中显示协议的第一参数和用于协议的第二参数。 在该显示呈现中，示出了第一参数的值的范围，包括在第一参数的值的选择不修改第二参数的范围内指定第一子范围，以及指定第二子范围， 范围，其中对第一参数的值的选择导致修改第二参数。 如果在第二个子范围内选择了第一个参数的值，显示显示会自动显示如何为第一个参数选择的值修改第二个参数。 给用户一个选项，通过用户界面来确认选择第一个参数的值，或者拒绝它。

公开(公告)号：US09261575B2

公开(公告)日：2016-02-16

申请号：US13866341

申请日：2013-04-19

申请人： Alto Stemmer

发明人： Alto Stemmer

IPC分类号： A61B5/055 ,  G01R33/567 ,  G01R33/48

CPC分类号： G01R33/5673 ,  A61B5/055 ,  G01R33/4818 ,  G01R33/4826 ,  G01R33/5676

摘要： For generating a three-dimensional magnetic resonance image of a respirating examination subject, the respiration of the examination subject is divided into a number of predefined clusters. Based on a measured respiratory position of the examination subject, one of these clusters is selected. The scanned k-space range is divided into a number of data acquisition shots which, by means of a particular k-space trajectory, each fill a number of k-space lines. The different shots are acquired for the different clusters until all shots of the measurement data set are assigned together to at least two adjacent clusters. The magnetic resonance image is reconstructed from those shots that are assigned to at least two adjacent clusters.

摘要翻译： 为了产生呼吸检查对象的三维磁共振图像，检查对象的呼吸被分成多个预定簇。 根据检查对象的测量呼吸位置，选择这些群集中的一个。 扫描的k空间范围被分成多个数据采集镜头，其通过特定的k空间轨迹填充多个k空间线。 对于不同的簇获取不同的照片，直到测量数据集的所有照片一起分配给至少两个相邻的聚类。 从分配给至少两个相邻簇的那些拍摄重建磁共振图像。

公开(公告)号：US08994373B2

公开(公告)日：2015-03-31

申请号：US13423488

申请日：2012-03-19

申请人： Alto Stemmer

发明人： Alto Stemmer

IPC分类号： G01R33/44 ,  G01R33/565 ,  G01R33/483 ,  G01R33/563 ,  G01R33/561

CPC分类号： G01R33/56563 ,  G01R33/4835 ,  G01R33/5613 ,  G01R33/5614 ,  G01R33/56383

摘要： In a method and system to adjust at least one shim current in a shim channel of a magnetic resonance apparatus and an associated RF center frequency for the radio-frequency system of the magnetic resonance apparatus during an interleaved multislice MR measurement of a moving examination subject, in which MR measurement at least two excitations are implemented for complete acquisition of the desired data of a slice of the examination subject that is to be measured, the multislice MR measurement is implemented such that phase discontinuities between measurement data acquired after individual excitations are avoided.

摘要翻译： 在用于在移动检查对象的交叉多层MR测量期间调整磁共振装置的垫片通道中的至少一个垫片电流和用于磁共振装置的射频系统的相关RF中心频率的方法和系统中， 其中MR测量实现至少两个激发以完全获取要测量的检查对象的切片的期望数据，实施多重MR测量，使得避免在单独激发之后获取的测量数据之间的相位不连续性。