公开(公告)号：US20150268319A1

公开(公告)日：2015-09-24

申请号：US14219239

申请日：2014-03-19

申请人： John Kirsch ,  Dominik Paul ,  Benjamin Schmitt

发明人： John Kirsch ,  Dominik Paul ,  Benjamin Schmitt

IPC分类号： G01R33/483 ,  G01R33/561 ,  G01R33/56 ,  G01R33/48

CPC分类号： G01R33/4835 ,  G01R33/5607

摘要： In a method and apparatus for magnetic resonance imaging of an examination subject using an acquisition sequence that includes at least one acquisition cycle, wherein the acquisition cycle includes a readout block set with at least two readout blocks, and a saturation pulse set with at least two saturation pulses, the saturation pulses of the saturation pulse set are respectively associated with respective readout blocks of the readout block set, and the saturation pulses of the saturation pulse set have respectively varying flip angles.

摘要翻译： 在用于使用包括至少一个采集周期的采集序列的检查对象的磁共振成像的方法和装置中，其中所述采集周期包括具有至少两个读出块的读出块组和至少具有两个读出块的饱和脉冲 饱和脉冲，饱和脉冲集合的饱和脉冲分别与读出块组的各个读出块相关联，饱和脉冲组的饱和脉冲分别具有不同的翻转角。

公开(公告)号：US20150260811A1

公开(公告)日：2015-09-17

申请号：US14645190

申请日：2015-03-11

申请人： Jan Ole Blumhagen ,  Dominik Paul

发明人： Jan Ole Blumhagen ,  Dominik Paul

IPC分类号： G01R33/3875 ,  G01R33/54 ,  G01R33/567

CPC分类号： G01R33/3875 ,  G01R33/243 ,  G01R33/4835 ,  G01R33/543 ,  G01R33/56563

摘要： In order to provide an improved homogeneity of a primary magnetic field during a magnetic resonance imaging process, a method for magnetic resonance imaging of a subject under examination using a magnetic resonance device includes an acquisition of magnetic resonance image data in a plurality of scanning blocks. Different shim settings are set in each case for the plurality of scanning blocks.

摘要翻译： 为了在磁共振成像过程中提供初级磁场的改进的均匀性，使用磁共振装置对检查对象进行磁共振成像的方法包括在多个扫描块中获取磁共振图像数据。 在各种情况下，为多个扫描块设置不同的垫片设置。

公开(公告)号：US20150219736A1

公开(公告)日：2015-08-06

申请号：US14616471

申请日：2015-02-06

申请人： Daniel Niederlöhner ,  Dominik Paul ,  Jörg Roland

发明人： Daniel Niederlöhner ,  Dominik Paul ,  Jörg Roland

IPC分类号： G01R33/54 ,  A61B5/055

CPC分类号： G01R33/543 ,  A61B5/055 ,  G01R33/288 ,  G01R33/385

摘要： A method for adapting activation parameters used to generate a pulse sequence when activating a magnetic resonance system is provided. The method includes determining stimulation values for the pulse sequence based on predefined activation parameters. The stimulation values represent a stimulation exposure of a patient. Test regions that exhibit stimulation maxima are identified in the pulse sequence, and the identified test regions are tested with respect to compliance with a predefined stimulation limit value.

摘要翻译： 提供了一种用于在激活磁共振系统时适应用于产生脉冲序列的激活参数的方法。 该方法包括基于预定义的激活参数确定脉冲序列的刺激值。 刺激值表示患者的刺激暴露。 在脉冲序列中鉴定显示刺激最大值的测试区域，并且根据预定义的刺激极限值测试鉴定的测试区域。

公开(公告)号：US09097779B2

公开(公告)日：2015-08-04

申请号：US13541239

申请日：2012-07-03

申请人： Hans-Peter Fautz ,  Dominik Paul

发明人： Hans-Peter Fautz ,  Dominik Paul

IPC分类号： G01V3/00 ,  G01R33/56 ,  G01R33/485 ,  G01R33/561 ,  G01R33/565

CPC分类号： G01R33/5605 ,  G01R33/485 ,  G01R33/5601 ,  G01R33/5612 ,  G01R33/56563 ,  G01R33/5659

摘要： In a method for accelerated CEST imaging in magnetic resonance tomography, RF pulses for the saturation of the protons of the substance to be shown are emitted by several transmission coils, and shape of these RF pulses is calculated using an optimization method so that a weighted sum is minimized, the sum exhibiting at least two of the following norms: the norm of the magnetization of free water protons in each point in space, the norm of the deviation of the magnetization of the bound protons from an inverted magnetization in each point in space and the norm of the magnetization of protons with an inverted shift relative to the predefined frequency shift in each point in space. The shape of the RF pulses for subsequent excitation of the free water protons also can be calculated for the optimization method.

摘要翻译： 在用于磁共振断层摄影中加速CEST成像的方法中，用于饱和待显示物质的质子的RF脉冲由几个传输线圈发射，并且使用优化方法计算这些RF脉冲的形状，使得加权和 被最小化，总和表现出至少两个以下范数：空间中每个点的自由水质子的磁化的范数，在空间中的每个点中结合的质子的磁化与反向磁化的偏差的范数 以及相对于空间中的每个点中的预定频移的具有反相移位的质子的磁化的范数。 对于优化方法，可以计算随后激发游离水质子的RF脉冲的形状。

公开(公告)号：US09063205B2

公开(公告)日：2015-06-23

申请号：US13554247

申请日：2012-07-20

申请人： Martin Harder ,  Dominik Paul ,  Raphael Schwarz

发明人： Martin Harder ,  Dominik Paul ,  Raphael Schwarz

IPC分类号： A61B5/055 ,  G01R33/54

CPC分类号： G01R33/543 ,  A61B5/0555

摘要： In a magnetic resonance method and apparatus wherein the magnetic resonance device has a movable patient bed, in a first overview measurement, a first image data record of a patient is acquired, and patient information and/or information of a treatment region of a patient is/are determined from the acquired first image data record. In a second overview measurement, dependent on the patient information and/or on the positioning information of the treatment region of the first image data record, a second image data record is acquired. In a planning step a layer planning for the image data acquisition is implemented from the acquired second image data record. Image data for a medical and/or diagnostic issue and/or examination are recorded. The first image data record of the first overview measurement is recorded with a lower spatial resolution than a spatial resolution of the second image data record of the second overview measurement.

摘要翻译： 在磁共振方法和装置中，其中磁共振装置具有可移动的患者床，在第一概览测量中，获取患者的第一图像数据记录，患者信息和/或患者的治疗区域的信息是 从所获取的第一图像数据记录确定。 在第二概览测量中，取决于患者信息和/或关于第一图像数据记录的治疗区域的定位信息，获取第二图像数据记录。 在规划步骤中，从所获取的第二图像数据记录中实现图像数据采集的图层。 记录医疗和/或诊断问题和/或检查的图像数据。 以比第二概览测量的第二图像数据记录的空间分辨率更低的空间分辨率记录第一概览测量的第一图像数据记录。

公开(公告)号：US20150022205A1

公开(公告)日：2015-01-22

申请号：US14331719

申请日：2014-07-15

申请人： Dominik Paul ,  Raphael Schwarz

发明人： Dominik Paul ,  Raphael Schwarz

IPC分类号： G01R33/34 ,  G01R33/30

CPC分类号： G01R33/34084 ,  A61B5/0555 ,  A61B2560/029 ,  G01R33/30 ,  G01R33/307 ,  G01R33/341 ,  G01R33/543

摘要： A magnetic resonance imaging system includes a control unit configured to (a) compare a plurality of magnitudes of a field of a coil of a local coil, wherein each magnitude of the plurality of magnitudes is measured at a different time; and (b) determine, based on on a comparison result, whether to stop or advance a position adjustment apparatus of the patient couch of the magnetic resonance imaging system.

摘要翻译： 磁共振成像系统包括控制单元，其被配置为（a）比较局部线圈的线圈的多个幅度的大小，其中在不同时间测量所述多个量值中的每个幅度; 以及（b）基于比较结果确定是否停止或推进磁共振成像系统的患者沙发的位置调整装置。

公开(公告)号：US20140028315A1

公开(公告)日：2014-01-30

申请号：US13951522

申请日：2013-07-26

申请人： Dominik Paul

发明人： Dominik Paul

IPC分类号： G01R33/48

CPC分类号： G01R33/4828 ,  A61B5/055

摘要： In a method, device and magnetic resonance system to generate a complete image data set to be displayed using a Dixon technique that separates at least two material types (in particular water and/or fat) in magnetic resonance data, after the determination of a first image data set associated with the first material type and the determination of a second image data set associated with the second material type, the first and second image data sets are combined to form a complete image data set depending on at least one weighting parameter.

摘要翻译： 在一种方法中，装置和磁共振系统，用于在确定第一和第二信号之后，使用在磁共振数据中分离至少两种材料类型（特别是水和/或脂肪）的Dixon技术产生要显示的完整图像数据集 与第一材料类型相关联的图像数据集和确定与第二材料类型相关联的第二图像数据集，第一和第二图像数据组被组合以根据至少一个加权参数形成完整的图像数据集。

公开(公告)号：US08625871B2

公开(公告)日：2014-01-07

申请号：US13422034

申请日：2012-03-16

申请人： Robert Grimm ,  Guo Bin Li ,  Dominik Paul

发明人： Robert Grimm ,  Guo Bin Li ,  Dominik Paul

IPC分类号： G06K9/00

CPC分类号： G01R33/565 ,  G01R33/5608

摘要： In an embodiment, a method is disclosed which includes: carrying out interpolation by using a slice away from a slab boundary, and substituting a slice having slab boundary artifacts existing in the slab boundary, to obtain an interpolated image; carrying out Fourier transform on the interpolated image to generate first K-space data; carrying out Fourier transform on the original image to generate second K-space data; merging the first K-space data with the second K-space data, wherein the weight of the first K-space data is greater than that of the second K-space data in the middle of the K-space, and the weight of the second K-space data is greater than that of the first K-space data at the edge of the K-space; and carrying out inverse Fourier transform on the merged K-space data.

摘要翻译： 在一个实施例中，公开了一种方法，其包括：通过使用离开平板边界的切片进行插值，并且替换存在于平板边界中的具有平板边界伪影的切片以获得内插图像; 对内插图像进行傅里叶变换，生成第一K空间数据; 对原始图像进行傅里叶变换，生成第二K空间数据; 将第一K空间数据与第二K空间数据合并，其中第一K空间数据的权重大于K空间中间的第二K空间数据的权重，并且 第二K空间数据大于K空间边缘的第一K空间数据的数据; 对合并后的K空间数据进行傅里叶逆变换。

公开(公告)号：US20130335082A1

公开(公告)日：2013-12-19

申请号：US13921469

申请日：2013-06-19

申请人： Dominik Paul

发明人： Dominik Paul

IPC分类号： G01R33/54

CPC分类号： G01R33/54 ,  G01R33/4822 ,  G01R33/4826 ,  G01R33/5615 ,  G01R33/5617

摘要： In a method and magnetic resonance (MR) system to acquire MR data in a predetermined volume segment of an examination subject, the data are acquired with at least one echo train that includes at least two signal echoes. The same number of echoes is acquired for each echo train of the at least one echo train, with this number of echoes corresponding to an echo train length. The total number of echoes that are required to acquire the MR data and the echo train length is adapted so that the total number corresponds to a whole number multiple of the echo train length.

摘要翻译： 在用于在检查对象的预定体积段中获取MR数据的方法和磁共振（MR）系统中，使用包括至少两个信号回波的至少一个回波串获取数据。 对于至少一个回波列的每个回波串获取相同数量的回波，其中这个回波对应于回波串长度。 获取MR数据和回波串长度所需的回波的总数被适配，使得总数对应于回波串长度的整数倍。

公开(公告)号：US08604788B2

公开(公告)日：2013-12-10

申请号：US13097289

申请日：2011-04-29

申请人： Guo Bin Li ,  Dominik Paul

发明人： Guo Bin Li ,  Dominik Paul

IPC分类号： G01V3/00

CPC分类号： G01R33/5617 ,  G01R33/4822 ,  G01R33/4833

摘要： A three-dimensional turbo spin echo imaging method of applying, within a repetition time TR, N groups of pulses to respectively scan N slabs in succession, with each group including one excitation pulse and more than one refocusing pulse, wherein N is a positive integer greater than 1, is improved by applying a first slice selection gradient at the same time as applying each said excitation pulse, and applying a second slice selection gradient at the same time as applying each said refocusing pulse, and applying a phase encoding gradient after having applied each refocusing pulse, then applying a frequency encoding gradient and acquiring scan signals during the duration of the frequency encoding gradient. An image according to the scan signals is reconstructed.

摘要翻译： 一种三维涡旋自旋回波成像方法，在重复时间TR内施加N组脉冲以分别扫描N个平板，每组包括一个激励脉冲和多于一个重聚焦脉冲，其中N是正整数 大于1，通过在应用每个所述激励脉冲的同时施加第一切片选择梯度并在施加每个所述重聚焦脉冲的同时施加第二切片选择梯度并在具有第一切片选择梯度之后施加相位编码梯度 应用每个重聚焦脉冲，然后施加频率编码梯度并在频率编码梯度的持续时间期间获取扫描信号。 重建根据扫描信号的图像。